sparse.rar

  • navvi
    了解作者
  • WINDOWS
    开发工具
  • 190KB
    文件大小
  • rar
    文件格式
  • 0
    收藏次数
  • 1 积分
    下载积分
  • 0
    下载次数
  • 2021-04-18 19:04
    上传日期
precoding mmwave antenna
sparse.rar
  • input.pdf
    219.7KB
内容介绍
<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="utf-8"> <meta name="generator" content="pdf2htmlEX"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <link rel="stylesheet" href="https://static.pudn.com/base/css/base.min.css"> <link rel="stylesheet" href="https://static.pudn.com/base/css/fancy.min.css"> <link rel="stylesheet" href="https://static.pudn.com/prod/directory_preview_static/62572d8560196e4b849cbb18/raw.css"> <script src="https://static.pudn.com/base/js/compatibility.min.js"></script> <script src="https://static.pudn.com/base/js/pdf2htmlEX.min.js"></script> <script> try{ pdf2htmlEX.defaultViewer = new pdf2htmlEX.Viewer({}); }catch(e){} </script> <title></title> </head> <body> <div id="sidebar" style="display: none"> <div id="outline"> </div> </div> <div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/62572d8560196e4b849cbb18/bg1.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">Progress<span class="_ _0"> </span>In<span class="_ _0"> </span>Electromagnetics<span class="_ _0"> </span>Researc<span class="_ _1"></span>h<span class="_ _2"> </span>M,<span class="_ _0"> </span>V<span class="_ _3"></span>ol.<span class="_ _0"> </span>77,<span class="_ _0"> </span>103&#8211;113,<span class="_ _0"> </span>2019</div><div class="t m0 x2 h3 y2 ff2 fs1 fc0 sc0 ls1 ws0">Tw<span class="_ _3"></span>o-Stage<span class="_ _4"> </span>Hybrid<span class="_ _5"> </span>Preco<span class="_ _6"></span>ding<span class="_ _5"> </span>Algori<span class="_ _1"></span>thm<span class="_ _4"> </span>Based<span class="_ _5"> </span>on<span class="_ _5"> </span>Switc<span class="_ _1"></span>h<span class="_ _5"> </span>Net<span class="_ _3"></span>w<span class="_ _1"></span>ork</div><div class="t m0 x3 h3 y3 ff2 fs1 fc0 sc0 ls2 ws0">for<span class="_ _5"> </span>Millimeter<span class="_ _7"> </span>W<span class="_ _8"></span>a<span class="_ _1"></span>v<span class="_ _1"></span>e<span class="_ _5"> </span>MIM<span class="_ _6"></span>O<span class="_ _5"> </span>Systems</div><div class="t m0 x1 h4 y4 ff3 fs2 fc0 sc0 ls3 ws0">F<span class="_ _8"></span>ulai<span class="_"> </span>Liu</div><div class="t m0 x4 h5 y5 ff4 fs3 fc0 sc0 ls4 ws0">1,<span class="_ _0"> </span>2,<span class="_ _9"> </span>*,</div><div class="t m0 x5 h6 y6 ff5 fs4 fc0 sc0 ls5 ws0">&#8224;</div><div class="t m0 x6 h4 y4 ff3 fs2 fc0 sc0 ls3 ws0">,<span class="_"> </span>Xiaodong<span class="_ _a"> </span>Kan</div><div class="t m0 x7 h5 y5 ff4 fs3 fc0 sc0 ls4 ws0">1,<span class="_ _9"> </span>2,</div><div class="t m0 x8 h6 y6 ff5 fs4 fc0 sc0 ls5 ws0">&#8224;</div><div class="t m0 x9 h4 y4 ff3 fs2 fc0 sc0 ls6 ws0">,<span class="_"> </span>Xiao<span class="_ _1"></span>yu<span class="_"> </span>Bai</div><div class="t m0 xa h5 y5 ff4 fs3 fc0 sc0 ls5 ws0">2</div><div class="t m0 xb h4 y4 ff3 fs2 fc0 sc0 ls7 ws0">,R<span class="_ _b"></span>u<span class="_ _b"></span>i<span class="_ _b"></span>y<span class="_ _b"></span>a<span class="_ _b"></span>nD<span class="_ _b"></span>u</div><div class="t m0 xc h5 y5 ff4 fs3 fc0 sc0 ls4 ws0">1,<span class="_ _0"> </span>2</div><div class="t m0 xd h4 y4 ff3 fs2 fc0 sc0 ls8 ws0">,<span class="_"> </span>and<span class="_"> </span>Y<span class="_ _8"></span>anshuo<span class="_"> </span>Zhang</div><div class="t m0 xe h5 y5 ff4 fs3 fc0 sc0 ls4 ws0">1,<span class="_ _0"> </span>2</div><div class="t m0 x1 h7 y7 ff3 fs2 fc0 sc0 ls9 ws0">Abstract<span class="ff6 lsa">&#8212;Owing<span class="_ _0"> </span>to<span class="_ _0"> </span>the<span class="_ _9"> </span>hardw<span class="_ _1"></span>are<span class="_ _0"> </span>co<span class="_ _1"></span>st<span class="_"> </span>a<span class="_ _1"></span>nd<span class="_"> </span>po<span class="_ _1"></span>we<span class="_ _1"></span>r<span class="_"> </span>c<span class="_ _1"></span>onsumption<span class="_ _9"> </span>limita<span class="_ _1"></span>tion,<span class="_"> </span>h<span class="_ _3"></span>ybrid<span class="_ _0"> </span>precoding<span class="_ _9"> </span>has<span class="_"> </span>been</span></div><div class="t m0 x1 h7 y8 ff6 fs2 fc0 sc0 lsb ws0">recently<span class="_"> </span>considered<span class="_"> </span>as<span class="_"> </span>an<span class="_"> </span>alternativ<span class="_ _1"></span>e<span class="_"> </span>to<span class="_"> </span>the<span class="_"> </span>fully<span class="_"> </span>digital<span class="_"> </span>pr<span class="_ _6"></span>eco<span class="_ _6"></span>ding<span class="_"> </span>in<span class="_"> </span>millimeter<span class="_"> </span>w<span class="_ _1"></span>a<span class="_ _1"></span>ve<span class="_"> </span>(mmW<span class="_ _8"></span>av<span class="_ _1"></span>e)<span class="_"> </span>large-</div><div class="t m0 x1 h7 y9 ff6 fs2 fc0 sc0 lsc ws0">scal<span class="_ _1"></span>e<span class="_ _c"> </span>m<span class="_ _1"></span>ultiple<span class="_ _1"></span>-input<span class="_"> </span>mul<span class="_ _1"></span>tiple-o<span class="_ _1"></span>utput<span class="_"> </span>(MIMO)<span class="_ _c"> </span>syst<span class="_ _1"></span>ems.<span class="_ _4"> </span>Althoug<span class="_ _1"></span>h<span class="_ _c"> </span>the<span class="_"> </span>num<span class="_ _3"></span>b<span class="_ _6"></span>er<span class="_"> </span>of<span class="_ _c"> </span>radi<span class="_ _1"></span>o<span class="_ _c"> </span>freq<span class="_ _1"></span>uency<span class="_"> </span>(RF)</div><div class="t m0 x1 h7 ya ff6 fs2 fc0 sc0 lsd ws0">c<span class="_ _1"></span>hain<span class="_ _6"></span>s<span class="_ _0"> </span>is<span class="_ _9"> </span>r<span class="_ _6"></span>educed<span class="_"> </span>to<span class="_ _9"> </span>a<span class="_"> </span>certain<span class="_"> </span>exten<span class="_ _1"></span>t<span class="_ _0"> </span>in<span class="_ _9"> </span>th<span class="_ _6"></span>e<span class="_ _0"> </span>h<span class="_ _1"></span>yb<span class="_ _6"></span>rid<span class="_ _9"> </span>p<span class="_ _6"></span>reco<span class="_ _6"></span>ding<span class="_"> </span>structure,<span class="_"> </span>a<span class="_ _9"> </span>great<span class="_"> </span>n<span class="_ _1"></span>u<span class="_ _6"></span>m<span class="_ _1"></span>b<span class="_ _6"></span>er<span class="_ _0"> </span>of<span class="_ _0"> </span>phase<span class="_ _0"> </span>shifter<span class="_ _6"></span>s</div><div class="t m0 x1 h7 yb ff6 fs2 fc0 sc0 lse ws0">are<span class="_ _0"> </span>still<span class="_"> </span>needed.<span class="_ _d"> </span>In<span class="_ _0"> </span>this<span class="_ _0"> </span>pap<span class="_ _6"></span>er,<span class="_"> </span>w<span class="_ _1"></span>e<span class="_ _0"> </span>present<span class="_ _0"> </span>a<span class="_ _9"> </span>n<span class="_ _6"></span>ew<span class="_ _9"> </span>hybrid<span class="_ _0"> </span>preco<span class="_ _6"></span>di<span class="_ _6"></span>ng<span class="_ _0"> </span>arc<span class="_ _1"></span>hitectu<span class="_ _6"></span>re<span class="_ _0"> </span>based<span class="_"> </span>on<span class="_ _9"> </span>s<span class="_ _6"></span>witc<span class="_ _1"></span>h<span class="_"> </span>net<span class="_ _1"></span>w<span class="_ _1"></span>or<span class="_ _6"></span>k</div><div class="t m0 x1 h7 yc ff6 fs2 fc0 sc0 lsf ws0">to<span class="_ _9"> </span>decrea<span class="_ _1"></span>se<span class="_ _0"> </span>the<span class="_ _9"> </span>p<span class="_ _6"></span>o<span class="_ _1"></span>w<span class="_ _1"></span>er<span class="_ _9"> </span>consumption<span class="_ _9"> </span>of<span class="_ _9"> </span>h<span class="_ _1"></span>ybrid<span class="_ _9"> </span>precoder<span class="_ _0"> </span>b<span class="_ _1"></span>y<span class="_ _9"> </span>reducing<span class="_ _9"> </span>the<span class="_ _9"> </span>n<span class="_ _1"></span>um<span class="_ _1"></span>b<span class="_ _6"></span>er<span class="_ _9"> </span>of<span class="_ _9"> </span>phase<span class="_ _9"> </span>shifters<span class="_ _9"> </span>great<span class="_ _1"></span>ly<span class="_ _3"></span>.</div><div class="t m0 x1 h7 yd ff6 fs2 fc0 sc0 lsf ws0">The<span class="_"> </span>new<span class="_"> </span>hy<span class="_ _1"></span>brid<span class="_"> </span>precoding<span class="_ _c"> </span>a<span class="_ _1"></span>rc<span class="_ _1"></span>hitect<span class="_ _1"></span>ure<span class="_ _c"> </span>consi<span class="_ _1"></span>sts<span class="_ _c"> </span>o<span class="_ _1"></span>f<span class="_ _c"> </span>thre<span class="_ _1"></span>e<span class="_ _c"> </span>part<span class="_ _1"></span>s,<span class="_ _c"> </span>a<span class="_"> </span>digi<span class="_ _1"></span>tal<span class="_ _c"> </span>pre<span class="_ _1"></span>co<span class="_ _6"></span>der,<span class="_"> </span>an<span class="_"> </span>analo<span class="_ _1"></span>g<span class="_ _c"> </span>precoder,</div><div class="t m0 x1 h7 ye ff6 fs2 fc0 sc0 ls10 ws0">and<span class="_ _c"> </span>a<span class="_ _c"> </span>swi<span class="_ _1"></span>tc<span class="_ _1"></span>h<span class="_ _c"> </span>net<span class="_ _1"></span>w<span class="_ _1"></span>ork,<span class="_ _c"> </span>in<span class="_ _c"> </span>whic<span class="_ _1"></span>h<span class="_ _c"> </span>the<span class="_ _c"> </span>swit<span class="_ _1"></span>c<span class="_ _1"></span>h<span class="_ _c"> </span>net<span class="_ _1"></span>w<span class="_ _1"></span>ork<span class="_ _c"> </span>is<span class="_ _c"> </span>used<span class="_ _c"> </span>t<span class="_ _1"></span>o<span class="_ _c"> </span>o&#64256;er<span class="_ _c"> </span>a<span class="_ _c"> </span>dynami<span class="_ _1"></span>c<span class="_ _c"> </span>connec<span class="_ _1"></span>tion<span class="_ _c"> </span>from<span class="_ _c"> </span>pha<span class="_ _1"></span>se</div><div class="t m0 x1 h7 yf ff6 fs2 fc0 sc0 lse ws0">shifter<span class="_ _6"></span>s<span class="_ _d"> </span>to<span class="_ _5"> </span>antennas.<span class="_ _e"> </span>Afterwards,<span class="_ _4"> </span>a<span class="_ _5"> </span>t<span class="_ _1"></span>w<span class="_ _1"></span>o-stage<span class="_ _4"> </span>algorith<span class="_ _6"></span>m<span class="_ _5"> </span>is<span class="_ _d"> </span>p<span class="_ _6"></span>rop<span class="_ _6"></span>osed<span class="_ _5"> </span>to<span class="_ _d"> </span>d<span class="_ _6"></span>etermine<span class="_ _5"> </span>eac<span class="_ _1"></span>h<span class="_ _5"> </span>p<span class="_ _6"></span>art<span class="_ _5"> </span>of<span class="_ _d"> </span>th<span class="_ _6"></span>e</div><div class="t m0 x1 h7 y10 ff6 fs2 fc0 sc0 ls11 ws0">h<span class="_ _1"></span>ybrid<span class="_"> </span>prec<span class="_ _1"></span>o<span class="_ _6"></span>ding<span class="_ _0"> </span>imple<span class="_ _1"></span>men<span class="_ _1"></span>tati<span class="_ _1"></span>on.<span class="_ _5"> </span>Sp<span class="_ _6"></span>eci<span class="_ _1"></span>&#64257;cally<span class="_ _8"></span>,<span class="_"> </span>the<span class="_"> </span>pro<span class="_ _6"></span>duct<span class="_ _0"> </span>of<span class="_"> </span>the<span class="_ _0"> </span>analo<span class="_ _1"></span>g<span class="_ _c"> </span>pre<span class="_ _1"></span>co<span class="_ _6"></span>ding<span class="_ _0"> </span>matri<span class="_ _1"></span>x<span class="_"> </span>and<span class="_"> </span>digi<span class="_ _1"></span>tal</div><div class="t m0 x1 h7 y11 ff6 fs2 fc0 sc0 ls12 ws0">preco<span class="_ _6"></span>din<span class="_ _6"></span>g<span class="_ _a"> </span>matr<span class="_ _6"></span>ix<span class="_ _a"> </span>is<span class="_ _d"> </span>viewed<span class="_ _a"> </span>as<span class="_ _d"> </span>a<span class="_ _d"> </span>whole<span class="_ _d"> </span>matrix<span class="_ _d"> </span>&#64257;rstly<span class="_ _3"></span>,<span class="_ _d"> </span>th<span class="_ _6"></span>ereb<span class="_ _1"></span>y<span class="_ _d"> </span>the<span class="_ _d"> </span>original<span class="_ _d"> </span>pr<span class="_ _6"></span>oblem<span class="_ _d"> </span>is<span class="_ _a"> </span>simp<span class="_ _6"></span>li&#64257;ed<span class="_ _d"> </span>in<span class="_ _1"></span>to</div><div class="t m0 x1 h7 y12 ff6 fs2 fc0 sc0 ls13 ws0">a<span class="_ _a"> </span>t<span class="_ _1"></span>w<span class="_ _1"></span>o-v<span class="_ _1"></span>ariab<span class="_ _6"></span>le<span class="_ _a"> </span>pr<span class="_ _6"></span>oblem<span class="_ _c"> </span>w<span class="_ _6"></span>hic<span class="_ _1"></span>h<span class="_ _a"> </span>is<span class="_ _a"> </span>r<span class="_ _6"></span>elativ<span class="_ _1"></span>ely<span class="_ _d"> </span>easy<span class="_ _a"> </span>to<span class="_ _a"> </span>b<span class="_ _6"></span>e<span class="_ _c"> </span>s<span class="_ _6"></span>olv<span class="_ _1"></span>ed.<span class="_ _f"> </span>Then<span class="_ _6"></span>,<span class="_ _c"> </span>th<span class="_ _6"></span>e<span class="_ _c"> </span>d<span class="_ _6"></span>ecomp<span class="_ _6"></span>osition<span class="_ _a"> </span>of<span class="_ _a"> </span>th<span class="_ _6"></span>e<span class="_ _c"> </span>an<span class="_ _6"></span>alog</div><div class="t m0 x1 h7 y13 ff6 fs2 fc0 sc0 ls14 ws0">precoding<span class="_ _10"> </span>matri<span class="_ _1"></span>x<span class="_ _10"> </span>and<span class="_ _9"> </span>dig<span class="_ _1"></span>ital<span class="_ _10"> </span>precoding<span class="_ _10"> </span>matrix<span class="_ _10"> </span>is<span class="_ _10"> </span>conside<span class="_ _1"></span>red<span class="_ _10"> </span>in<span class="_ _10"> </span>the<span class="_ _9"> </span>se<span class="_ _1"></span>cond<span class="_ _10"> </span>stage<span class="_ _1"></span>.<span class="_ _d"> </span>Sim<span class="_ _1"></span>ulat<span class="_ _1"></span>ion<span class="_ _10"> </span>results<span class="_ _10"> </span>sho<span class="_ _1"></span>w</div><div class="t m0 x1 h7 y14 ff6 fs2 fc0 sc0 ls15 ws0">that<span class="_ _9"> </span>th<span class="_ _6"></span>e<span class="_ _9"> </span>presented<span class="_ _9"> </span>imp<span class="_ _6"></span>lemen<span class="_ _1"></span>tation<span class="_"> </span>can<span class="_ _9"> </span>not<span class="_ _9"> </span>on<span class="_ _6"></span>ly<span class="_ _9"> </span>provide<span class="_ _9"> </span>a<span class="_ _9"> </span>b<span class="_ _6"></span>etter<span class="_ _0"> </span>trade-o&#64256;<span class="_ _9"> </span>b<span class="_ _11"></span>et<span class="_ _1"></span>ween<span class="_ _9"> </span>har<span class="_ _6"></span>dw<span class="_ _1"></span>are<span class="_ _9"> </span>com<span class="_ _6"></span>plexit<span class="_ _1"></span>y</div><div class="t m0 x1 h7 y15 ff6 fs2 fc0 sc0 ls16 ws0">and<span class="_ _c"> </span>system<span class="_ _c"> </span>p<span class="_ _6"></span>erformance<span class="_ _1"></span>,<span class="_ _a"> </span>but<span class="_ _c"> </span>also<span class="_ _a"> </span>ac<span class="_ _3"></span>hiev<span class="_ _1"></span>e<span class="_ _d"> </span>highe<span class="_ _1"></span>r<span class="_ _a"> </span>energ<span class="_ _1"></span>y<span class="_ _a"> </span>e&#64259;cienc<span class="_ _1"></span>y<span class="_ _a"> </span>with<span class="_ _a"> </span>far<span class="_ _c"> </span>few<span class="_ _1"></span>er<span class="_ _a"> </span>phase<span class="_ _c"> </span>shift<span class="_ _1"></span>ers<span class="_ _a"> </span>than</div><div class="t m0 x1 h7 y16 ff6 fs2 fc0 sc0 ls16 ws0">previo<span class="_ _1"></span>us<span class="_"> </span>w<span class="_ _1"></span>orks.</div><div class="t m0 x1 h4 y17 ff3 fs2 fc0 sc0 ls17 ws0">1.<span class="_ _5"> </span>INTRODU<span class="_ _1"></span>CTION</div><div class="t m0 x1 h7 y18 ff6 fs2 fc0 sc0 ls12 ws0">Millimeter<span class="_ _9"> </span>w<span class="_ _1"></span>a<span class="_ _1"></span>v<span class="_ _1"></span>e<span class="_ _9"> </span>(mmW<span class="_ _3"></span>a<span class="_ _1"></span>v<span class="_ _1"></span>e)<span class="_ _9"> </span>communication<span class="_ _10"> </span>system<span class="_ _6"></span>s,<span class="_ _10"> </span>op<span class="_ _6"></span>er<span class="_ _6"></span>ating<span class="_ _10"> </span>in<span class="_ _10"> </span>the<span class="_ _10"> </span>sp<span class="_ _6"></span>ectru<span class="_ _6"></span>m<span class="_ _10"> </span>from<span class="_ _10"> </span>30<span class="_ _12"> </span>GHz<span class="_ _10"> </span>to<span class="_ _10"> </span>300<span class="_ _13"> </span>GHz,</div><div class="t m0 x1 h7 y19 ff6 fs2 fc0 sc0 lse ws0">ha<span class="_ _1"></span>ve<span class="_ _0"> </span>attracted<span class="_"> </span>extensive<span class="_"> </span>atten<span class="_ _1"></span>tion<span class="_"> </span>o<span class="_ _1"></span>v<span class="_ _1"></span>er<span class="_"> </span>th<span class="_ _6"></span>e<span class="_ _9"> </span>p<span class="_ _6"></span>ast<span class="_ _0"> </span>y<span class="_ _1"></span>ears<span class="_"> </span>[1&#8211;3].<span class="_ _d"> </span>Mu<span class="_ _6"></span>ltiple-i<span class="ls18">nput<span class="_ _9"> </span>mult<span class="_ _1"></span>iple-o<span class="_ _1"></span>utput<span class="_ _0"> </span>(MIM<span class="_ _1"></span>O)<span class="_ _0"> </span>is</span></div><div class="t m0 x1 h7 y1a ff6 fs2 fc0 sc0 lsb ws0">one<span class="_ _10"> </span>of<span class="_ _9"> </span>the<span class="_ _10"> </span>promis<span class="_ _6"></span>ing<span class="_ _10"> </span>tec<span class="_ _1"></span>hn<span class="_ _6"></span>iques,<span class="_ _9"> </span>which<span class="_ _10"> </span>can<span class="_ _10"> </span>exploit<span class="_ _9"> </span>large-scale<span class="_ _9"> </span>antenna<span class="_ _10"> </span>elements<span class="_ _10"> </span>at<span class="_ _10"> </span>tr<span class="_ _6"></span>ansceiv<span class="_ _1"></span>ers<span class="_ _9"> </span>to<span class="_ _10"> </span>achiev<span class="_ _1"></span>e</div><div class="t m0 x1 h7 y1b ff6 fs2 fc0 sc0 lse ws0">high<span class="_"> </span>b<span class="_ _6"></span>eamform<span class="_ _6"></span>ing<span class="_ _0"> </span>gains<span class="_"> </span>and<span class="_ _0"> </span>com<span class="_ _1"></span>bat<span class="_"> </span>huge<span class="_ _0"> </span>atten<span class="_ _1"></span>u<span class="_ _6"></span>ation<span class="_"> </span>and<span class="_ _0"> </span>p<span class="_ _6"></span>enetr<span class="_ _6"></span>ation<span class="_"> </span>loss<span class="_ _0"> </span>at<span class="_ _0"> </span>mmW<span class="_ _3"></span>a<span class="_ _1"></span>v<span class="_ _1"></span>e<span class="_"> </span>fr<span class="_ _6"></span>equencies<span class="_"> </span>[4].</div><div class="t m0 x1 h7 y1c ff6 fs2 fc0 sc0 ls10 ws0">Ho<span class="_ _3"></span>wev<span class="_ _3"></span>er,<span class="_ _c"> </span>increased<span class="_ _c"> </span>po<span class="_ _1"></span>we<span class="_ _1"></span>r<span class="_ _c"> </span>consumpti<span class="_ _1"></span>on<span class="_ _c"> </span>and<span class="_"> </span>hardw<span class="_ _1"></span>are<span class="_ _c"> </span>co<span class="_ _1"></span>st<span class="_ _c"> </span>mak<span class="_ _1"></span>e<span class="_ _c"> </span>a<span class="_ _c"> </span>full<span class="_ _1"></span>y<span class="_ _c"> </span>digit<span class="_ _1"></span>al<span class="_ _c"> </span>precoder<span class="_ _c"> </span>infe<span class="_ _1"></span>asible<span class="_ _c"> </span>fo<span class="_ _1"></span>r</div><div class="t m0 x1 h7 y1d ff6 fs2 fc0 sc0 lsd ws0">large-scale<span class="_ _9"> </span>m<span class="_ _6"></span>mW<span class="_ _8"></span>av<span class="_ _1"></span>e<span class="_ _9"> </span>MIMO<span class="_ _9"> </span>systems<span class="_ _9"> </span>[5].<span class="_ _d"> </span>T<span class="_ _3"></span>o<span class="_ _10"> </span>ov<span class="_ _3"></span>er<span class="_ _6"></span>come<span class="_ _9"> </span>this<span class="_ _9"> </span>shor<span class="_ _6"></span>tcoming,<span class="_ _9"> </span>a<span class="_ _9"> </span>h<span class="_ _1"></span>ybr<span class="_ _6"></span>id<span class="_ _10"> </span>preco<span class="_ _6"></span>d<span class="_ _6"></span>ing<span class="_ _10"> </span>ar<span class="_ _6"></span>c<span class="_ _1"></span>hitectur<span class="_ _6"></span>e,</div><div class="t m0 x1 h7 y1e ff6 fs2 fc0 sc0 ls13 ws0">which<span class="_ _10"> </span>only<span class="_ _10"> </span>ad<span class="_ _6"></span>opts<span class="_ _10"> </span>a<span class="_ _10"> </span>lim<span class="_ _6"></span>ited<span class="_ _10"> </span>numb<span class="_ _6"></span>er<span class="_ _10"> </span>of<span class="_ _10"> </span>RF<span class="_ _10"> </span>c<span class="_ _1"></span>h<span class="_ _6"></span>ains<span class="_ _10"> </span>to<span class="_ _9"> </span>connect<span class="_ _9"> </span>a<span class="_ _10"> </span>lo<span class="_ _1"></span>w-d<span class="_ _6"></span>imension<span class="_ _6"></span>al<span class="_ _10"> </span>d<span class="_ _6"></span>igital<span class="_ _10"> </span>b<span class="_ _6"></span>aseband<span class="_ _10"> </span>pr<span class="_ _6"></span>eco<span class="_ _6"></span>der</div><div class="t m0 x1 h7 y1f ff6 fs2 fc0 sc0 ls13 ws0">and<span class="_"> </span>a<span class="_"> </span>h<span class="_ _6"></span>igh-dim<span class="_ _6"></span>ensional<span class="_ _14"> </span>analog<span class="_ _14"> </span>RF<span class="_"> </span>pr<span class="_ _6"></span>eco<span class="_ _6"></span>der,<span class="_"> </span>has<span class="_ _14"> </span>recently<span class="_"> </span>received<span class="_ _2"> </span>muc<span class="_ _1"></span>h<span class="_"> </span>con<span class="_ _6"></span>sideration<span class="_ _c"> </span>[6,<span class="_ _12"> </span>7].</div><div class="t m0 xf h7 y20 ff6 fs2 fc0 sc0 lsb ws0">In<span class="_ _15"> </span>general,<span class="_ _16"> </span>the<span class="_ _15"> </span>hybrid<span class="_ _15"> </span>preco<span class="_ _6"></span>d<span class="_ _6"></span>ing<span class="_ _15"> </span>is<span class="_ _15"> </span>categorized<span class="_ _17"> </span>in<span class="_ _1"></span>to<span class="_ _17"> </span>fully-conn<span class="_ _6"></span>ected<span class="_ _15"> </span>and<span class="_ _17"> </span>partially-conn<span class="_ _6"></span>ected</div><div class="t m0 x1 h7 y21 ff6 fs2 fc0 sc0 lsb ws0">structu<span class="_ _6"></span>res<span class="_ _a"> </span>w<span class="_ _6"></span>ith<span class="_ _a"> </span>ph<span class="_ _6"></span>ase<span class="_ _a"> </span>sh<span class="_ _6"></span>ifters<span class="_ _a"> </span>(FC-PSs<span class="_ _d"> </span>and<span class="_ _a"> </span>P<span class="_ _6"></span>C-PSs).<span class="_ _16"> </span>Recently<span class="_ _3"></span>,<span class="_ _d"> </span>several<span class="_ _a"> </span>hybrid<span class="_ _d"> </span>preco<span class="_ _6"></span>din<span class="_ _6"></span>g<span class="_ _a"> </span>algorithms</div><div class="t m0 x1 h7 y22 ff6 fs2 fc0 sc0 ls18 ws0">ha<span class="_ _1"></span>v<span class="_ _1"></span>e<span class="_ _5"> </span>b<span class="_ _6"></span>een<span class="_ _d"> </span>presen<span class="_ _3"></span>ted<span class="_ _5"> </span>for<span class="_ _5"> </span>F<span class="_ _3"></span>C-PSs.<span class="_ _e"> </span>The<span class="_ _5"> </span>spati<span class="_ _1"></span>ally<span class="_ _5"> </span>sparse<span class="_ _d"> </span>precoding<span class="_ _d"> </span>algorit<span class="_ _1"></span>hm<span class="_ _5"> </span>in<span class="_ _5"> </span>[7]<span class="_ _5"> </span>re<span class="_ _1"></span>form<span class="_ _1"></span>ulate<span class="_ _1"></span>s<span class="_ _5"> </span>the</div><div class="t m0 x1 h7 y23 ff6 fs2 fc0 sc0 lse ws0">h<span class="_ _1"></span>yb<span class="_ _6"></span>rid<span class="_"> </span>preco<span class="_ _6"></span>ding<span class="_"> </span>pr<span class="_ _6"></span>oblem<span class="_"> </span>as<span class="_"> </span>a<span class="_"> </span>sparse<span class="_"> </span>reconstr<span class="_ _6"></span>uction<span class="_"> </span>pr<span class="_ _6"></span>oblem<span class="_"> </span>and<span class="_"> </span>solv<span class="_ _1"></span>es<span class="_"> </span>it<span class="_"> </span>by<span class="_ _0"> </span>the<span class="_"> </span>orthogonal<span class="_ _14"> </span>matching</div><div class="t m0 x1 h7 y24 ff6 fs2 fc0 sc0 ls18 ws0">pursuit<span class="_ _13"> </span>(OMP)<span class="_ _1"></span>.<span class="_ _10"> </span>Co<span class="_ _6"></span>debo<span class="_ _6"></span>ok-ba<span class="_ _1"></span>sed<span class="_ _13"> </span>hybri<span class="_ _1"></span>d<span class="_ _10"> </span>prec<span class="_ _1"></span>o<span class="_ _6"></span>ding<span class="_ _13"> </span>algori<span class="_ _1"></span>thm<span class="_ _10"> </span>in<span class="_ _13"> </span>[8]<span class="_ _10"> </span>in<span class="_ _1"></span>v<span class="_ _1"></span>olv<span class="_ _1"></span>es<span class="_ _10"> </span>an<span class="_ _13"> </span>iterat<span class="_ _1"></span>iv<span class="_ _1"></span>e<span class="_ _10"> </span>searc<span class="_ _1"></span>hing<span class="_ _13"> </span>pro<span class="_ _6"></span>cess</div><div class="t m0 x1 h7 y25 ff6 fs2 fc0 sc0 ls15 ws0">in<span class="_ _d"> </span>a<span class="_ _d"> </span>p<span class="_ _6"></span>rede&#64257;n<span class="_ _6"></span>ed<span class="_ _a"> </span>co<span class="_ _6"></span>d<span class="_ _6"></span>eb<span class="_ _6"></span>o<span class="_ _6"></span>ok<span class="_ _d"> </span>to<span class="_ _d"> </span>&#64257;<span class="_ _6"></span>nd<span class="_ _d"> </span>the<span class="_ _d"> </span>optim<span class="_ _6"></span>al<span class="_ _d"> </span>hybrid<span class="_ _d"> </span>pr<span class="_ _6"></span>ecod<span class="_ _6"></span>ing<span class="_ _d"> </span>matr<span class="_ _6"></span>ix.<span class="_ _18"> </span>The<span class="_ _d"> </span>works<span class="_ _d"> </span>in<span class="_ _d"> </span>[<span class="_ _6"></span>9&#8211;12]<span class="_ _d"> </span>d<span class="_ _6"></span>evise</div><div class="t m0 x1 h7 y26 ff6 fs2 fc0 sc0 ls19 ws0">h<span class="_ _1"></span>yb<span class="_ _6"></span>rid<span class="_ _a"> </span>preco<span class="_ _6"></span>din<span class="_ _6"></span>g<span class="_ _c"> </span>algor<span class="_ _6"></span>ithm<span class="_ _a"> </span>by<span class="_ _c"> </span>matr<span class="_ _6"></span>ix<span class="_ _a"> </span>decomp<span class="_ _11"></span>osition<span class="_ _a"> </span>and<span class="_ _a"> </span>altern<span class="_ _6"></span>ativ<span class="_ _1"></span>e<span class="_ _d"> </span>minimization<span class="_ _6"></span>,<span class="_ _d"> </span>resp<span class="_ _6"></span>ectiv<span class="_ _1"></span>ely<span class="_ _3"></span>,<span class="_ _d"> </span>and</div><div class="t m0 x2 h8 y27 ff7 fs3 fc0 sc0 ls1a ws0">R<span class="_ _1"></span>e<span class="_ _1"></span>c<span class="_ _1"></span>eiv<span class="_ _6"></span>e<span class="_ _1"></span>d<span class="_ _9"> </span>28<span class="_ _0"> </span>Oct<span class="_ _6"></span>ob<span class="_ _3"></span>e<span class="_ _6"></span>r<span class="_ _9"> </span>2018,<span class="_ _0"> </span>A<span class="_ _1"></span>c<span class="_ _1"></span>c<span class="_ _1"></span>epted<span class="_ _9"> </span>6<span class="_ _0"> </span>De<span class="_ _1"></span>c<span class="_ _1"></span>emb<span class="_"> </span>er<span class="_ _9"> </span>2018,<span class="_ _0"> </span>Sche<span class="_ _1"></span>dule<span class="_ _1"></span>d<span class="_ _0"> </span>29<span class="_ _0"> </span>De<span class="_ _1"></span>c<span class="_ _1"></span>emb<span class="_"> </span>er<span class="_ _9"> </span>2018</div><div class="t m0 x1 h5 y28 ff8 fs3 fc0 sc0 ls1b ws0">*<span class="_ _14"> </span>Corresponding<span class="_ _10"> </span>author:<span class="_ _10"> </span>F<span class="_ _3"></span>ulai<span class="_ _10"> </span>Liu<span class="_ _9"> </span>(fulailiu@1<span class="_ _1"></span>26.com)<span class="_ _1"></span>.</div><div class="t m0 x1 h6 y29 ff9 fs4 fc0 sc0 ls5 ws0">1</div><div class="t m0 x2 h5 y2a ff8 fs3 fc0 sc0 ls1c ws0">Engineer<span class="_ _0"> </span>Opti<span class="_ _6"></span>mization<span class="_ _0"> </span>&amp;<span class="_ _0"> </span>Sm<span class="_ _6"></span>art<span class="_ _0"> </span>Antenna<span class="_ _0"> </span>Institute,<span class="_ _2"> </span>Northeas<span class="_ _6"></span>tern<span class="_ _0"> </span>University<span class="_ _0"> </span>at<span class="_ _0"> </span>Qinh<span class="_"> </span>uangdao,<span class="_ _0"> </span>Qinhuangdao,<span class="_ _0"> </span>Chi<span class="_ _6"></span>na.</div><div class="t m0 x10 h6 y29 ff9 fs4 fc0 sc0 ls5 ws0">2</div><div class="t m0 x11 h5 y2a ff8 fs3 fc0 sc0 ls1d ws0">Sc<span class="_"> </span>hool<span class="_ _0"> </span>of</div><div class="t m0 x1 h5 y2b ff8 fs3 fc0 sc0 ls1e ws0">Computer<span class="_ _9"> </span>Sci<span class="_ _6"></span>ence<span class="_ _9"> </span>and<span class="_ _9"> </span>Engineeri<span class="_ _6"></span>ng,<span class="_ _9"> </span>Northeastern<span class="_ _0"> </span>University<span class="_ _3"></span>,<span class="_ _9"> </span>Shen<span class="_ _1"></span>yang,<span class="_ _9"> </span>China.</div><div class="t m0 x12 h6 y2c ff5 fs4 fc0 sc0 ls5 ws0">&#8224;</div><div class="t m0 x13 h5 y2d ff8 fs3 fc0 sc0 ls1f ws0">F<span class="_ _3"></span>ulai<span class="_ _10"> </span>Liu<span class="_ _9"> </span>and<span class="_ _9"> </span>Xiaodong<span class="_ _10"> </span>Kan<span class="_ _9"> </span>ha<span class="_ _1"></span>v<span class="_ _1"></span>e<span class="_ _9"> </span>made<span class="_ _9"> </span>the<span class="_ _9"> </span>same</div><div class="t m0 x1 h5 y2e ff8 fs3 fc0 sc0 ls20 ws0">cont<span class="_"> </span>ributions<span class="_ _9"> </span>on<span class="_ _9"> </span>this<span class="_ _9"> </span>pap<span class="_ _6"></span>er.</div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div> </body> </html>
评论
    相关推荐
    • excel.rar
      使用ActiveX调用Excel实现工作页切换,文本写入等操作,
    • Excel相关.zip
      labview与Excel表格之间的读取与写入。
    • ExcelParser
      ExcelParser 用于处理Excel文档的ASP.NET Web.Api应用程序 要求 使用Book1.xlsx进行测试 创建数据库“电子表格” \ ExcelParser.Core \ ExcelParser.Core \ appsettings.json中的指定连接字符串 用于API测试的软件...
    • excel class
      excel class of php 将EXCEL表中的内容 导入到PHP的mysql数据库中
    • EXCEL公式与函数练习
      用于EXCEL公式与函数教学,几个练习由浅入深,既突出重难点,也有启发性。
    • java excel
      java exceljava exceljava exceljava exceljava exceljava exceljava excel
    • Excel Quicker
      我在项目开发出之余开发的Excel控件,控件名Excel Quicker,运行在VS2003.net+Office2003环境下(B/S和C/S架构均可以使用),稳定、快速、可操作性强,编程方便。开发思想是把Excel中的常用元素(单元格、单元格集合...
    • excel1.rar
      program for excel integration
    • EXcel导出.rar
      将datagrid中的数据导出到Excel文件中
    • Excel.zip
      读写EXCEL,可以单行写入,也可以多行写入