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First, when the inter-user distance d is small, the SNR for D2D communication is high, and hence there are sufficient number of bits for high quality CSI exchange.

Matlab files for various types of beamforming for custom 1D, 2D and 3D

利用自回归模型产生Rayleigh率落信道(use of regression models have Rayleigh rate charged Channel)

Slide for beginning with OPNET

说明：  系统分别对无线通信中的几种重要的多址接入协议进行了仿真,包括pure-ALOHA,slotted-ALOHA,CSMA以及(Several important multiple access protocols in wireless communication are simulated by the system, including pure-ALOHA, slotched-ALOHA, CSMA, and the like.)

说明：  本压缩包收集了较为经典的几种关于BCH和RS编译码的matlab程序，以及通信系统的仿真等。供大家参考学习，搬运整理而得(This compression package collects several classical matlab programs about BCH and RS coding and decoding, as well as the simulation of communication system. For your reference and study, handling and sorting out)

采用QPSK调制方式实现OFDM，在simulink上搭建的仿真模块，可以很好的学习OFDM，验证通过。(Achieved using QPSK modulation OFDM, built on the simulink simulation module can be good learning OFDM. )

OFDM BPSK 仿真 (OFDM BPSK simulation)

MATLAB仿真软件在通信系统仿真中的应用(MATLAB simulation software in the communication system simulation)

信道估计的插值算法（中兴捧月）XXXXXXXXXXXX(Interpolation Algorithm for Channel Estimation (Zhongxing Holding Moon))