文件列表:

802_11new\d-tail_new.cc (5567, 2010-03-14)
802_11new\d-tail_new.h (4011, 2010-03-14)
802_11new\d-tail_new.o (17055, 2010-08-15)
802_11new\mac-802_11new.cc (68202, 2010-05-21)
802_11new\mac-802_11new.h (21260, 2010-05-21)
802_11new\mac-802_11new.o (82099, 2010-08-15)
802_11new\mac-timers_802_11new.cc (27380, 2010-05-21)
802_11new\mac-timers_802_11new.h (5794, 2010-03-07)
802_11new\mac-timers_802_11new.o (27702, 2010-08-15)
802_11new\multi_udpflows_new.tcl (5909, 2010-01-28)
802_11new\ns-mobilenode_EDCA_new.tcl (22656, 2010-01-31)
802_11new\ping.h (523, 2010-01-28)
802_11new\priority_new.tcl (1697, 2010-03-04)
802_11new\priq_new.cc (9598, 2010-05-22)
802_11new\priq_new.h (3793, 2010-03-07)
802_11new\priq_new.o (24063, 2010-08-15)
802_11new (0, 2010-08-15)

Note: ***** The model lacks the HCCA, any management mechanisms like Association/Reassociation, Authentication / Deauthentication. In addition, no superframe structure with Beacon frames and no power-saving methods are supported (as in the original ns-2 model). The RTS/CTS mechanism, which is included in the legacy ns-802.11 model, has never been tested and verified. Therefore we do not recommend to use RTS/CTS without reviewing the code in detail. This model only works with ns-2.28. Several changes might be needed to use it in combination with other ns versions. Installation of MAC 802.11e EDCA-Code: ************************************** 1. please change into the directory ns-whatever/ns-x.y/mac/ 2. copy the tgz file into this directory and extract it with: tar -xvzf filename.tgz 3. changes to your Makefile.in in ns-whatever/ns-x.y/: - add to INCLUDES: -I./mac/802_11e - add to OBJ_CC: mac/802_11e/mac-802_11e.o mac/802_11e/priq.o mac/802_11e/d-tail.o mac/802_11e/mac-timers_802_11e.o - exclude in NS_TCL_LIB: tcl/lib/ns-mobilenode.tcl \ - add to NS_TCL_LIB: mac/802_11e/ns-mobilenode_EDCA.tcl \ mac/802_11e/priority.tcl \ 4. changes to your ns-whatever/ns-x.y/tcl/lib/ns-lib.tcl: - exclude from the source list: source ns-mobilenode.tcl - add to the source list: source ../../mac/802_11e/ns-mobilenode_EDCA.tcl source ../../mac/802_11e/priority.tcl 5. changes to your ns-whatever/ns-x.y/tcl/lib/ns-default.tcl: - add: Queue/DTail set drop_front_ false Queue/DTail set summarystats_ false Queue/DTail set queue_in_bytes_ false Queue/DTail set mean_pktsize_ 500 Queue/DTail/PriQ set Prefer_Routing_Protocols 1 Queue/DTail/PriQ set Max_Levels 4 Queue/DTail/PriQ set Levels 4 Mac/802_11e set SlotTime_ 0.000020 ;# 20us Mac/802_11e set SIFS_ 0.000010 ;# 10us Mac/802_11e set PreambleLength_ 144 ;# 144 bit Mac/802_11e set PLCPHeaderLength_ 48 ;# 48 bits Mac/802_11e set PLCPDataRate_ 1.0e6 ;# 1Mbps Mac/802_11e set RTSThreshold_ 3000 ;# bytes Mac/802_11e set ShortRetryLimit_ 7 ;# retransmittions Mac/802_11e set LongRetryLimit_ 4 ;# retransmissions 6. add to tcl/lan/ns-mac.tcl: if [TclObject is-class Mac/802_11e] { ... copy settings of MAC/802.11 (which are contained in this file) into this section and at an "e" at the end of the "Mac/802_11" terms ... Mac/802_11e set cfb_ 0 ;# disables CFB } 7. mac/wireless-phy.h: change enum ChannelStatus {IDLE, RECV, SEND}; to enum ChannelStatus {IDLE, RECVING, SENDING}; mac/wireless-phy.cc: replace all occurences of RECV and SEND (by RECVING and SENDING). 8. common/packet.h: add #define HDR_MAC802_11E(p) ((hdr_mac802_11e *)hdr_mac::access(p)) 9. run ./configure; make clean; make depend; make in your ns directory 10. happy simulating :o) (e.g with the example script ../ns-x/mac/802.11e/multi_udpflows.tcl) Simulations with 802.11e EDCA ***************************** - in your simulation script: After defining your transport_agent % set transport_agent [new Agent/UDP] ,just add % $your_transport_agent prio_ x to give a certain flow a specific priority (x between 0 and 3, 0 being the highest, 3 being the lowest priority). - changes to 802.11e parameters (CW_MIN, CW_MAX, AIFS, TXOPLimit, PF) should be made in ../ns-x/mac/802_11e/priority.tcl for each queue. Please rerun make afterwards. - please set Mac/802_11e cfb_ to 1 (in tcl/lan/ns-mac.tcl) if you want to enable CFB in your simulations. Rerun make afterwards.

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