Implemantation-of-5G-master
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开发工具：matlab
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说明： 基于非正交多址接入（NOMA）的5G技术的发送端功率分配模型及其仿真图
(Power allocation model and simulation diagram of 5G technology based on non-orthogonal multiple access (Noma))
文件列表:
5.PNG (19817, 2019-11-06)
IEEE_WCNC_Green_Multilevel_Beamforming.pdf (1012237, 2019-11-06)
Matlabcode.m (2052, 2019-11-06)
Power Allocation in NOMA.docx (15848, 2021-01-27)
Power.slx (25769, 2019-11-06)
SIC Block Diagram.PNG (68895, 2019-11-06)
modulation and multiple access for 5g networks.pdf (1972476, 2019-11-06)
modulation.m (414, 2019-11-06)
# Implemantation-of-5G-physical-layer--Multiple-Access
Power Allocation In NOMA
Multiple access is a technique which allows multiple user to share their data using the same allotted time-frequency resources
NOMA via Power Domain Multiplexing
In Power domain NOMA, different users are allocated different power levels depending on the Channel State Information(CSI).
In power NOMA the user with poor CSI is allocated more power as compared to another user with good CSI. This way we can ensure:-
Reduced interference by the user with good CSI as less power is allocated to it.
Improved detection accuracy for the user with poor CSI as more power is allocated to it.
CSI: refers to the known channel properties of the communication link.
Successive Interference Cancellation(SIC)
It takes place at the receiver side were we receive a superimposed signal of multiple users with different power levels.
The SIC receiver works in the descending order of signal strength.
# Implemantation-of-5G-physical-layer――NOMA中的功率分配
多址接入是一种允许多个用户使用相同的分配的时频资源来共享数据的技术
通过功率域多路复用的NOMA：
在功率域NOMA中，根据信道状态信息(CSI)为不同的用户分配不同的功率级别。
在功率NOMA中，CSI较差的用户比CSI较好的用户被分配更多的功率。
这样我们可以确保:-
为具有良好CSI的用户分配更少的功率，从而减少其干扰。
为CSI较差的用户分配更多的功率，提高了检测精度。
CSI:通信链路的已知信道属性（信道状态信息）。
连续干扰消除(原文如此)
它发生在接收端，我们接收到多个不同功率级别的用户的叠加信号。SIC接收机按信号强度由高到低的顺序工作。
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