%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%???????????cooperation?communication
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
clc;
clear;
close?all;
warning?off;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%?????????system?parameters
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
BandWidth?=?8;%?in?Mega?Hz
%?number?of?primary?user
Node_set?=?100;
%?number?of?cooperation?user
Node_relay_Vec?=?[1];%?the?number?of?node?to?be?choosen?to?be?relay
TxRangeVec?=?[20:10:100];%?distance?between?source?and?sink?node
snr_Th?=?30;%?snr?threshold?for?outage?probability?0.001%
PlotOn?=?0;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%??????????????simulation?parameters
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
IterNum?=?1;
Len?=?length（TxRangeVec）;

RelayLen?=?length（Node_relay_Vec）;
PowerConsumption?=?zeros（RelayLenLen）;
PowerConsumption_D?=?zeros（1Len）;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%????????????????simulation
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
for?sim_index?=?1:Len;
????TxRange?=?TxRangeVec（sim_index）;
????
????for?loops?=?1:IterNum;
????????%?network?topology
????????Destination_Pos?=?[0;0];%?desitnation?node
????????Source_Pos?=?[-TxRange;0];%?source?node
????????%?coveage
????????alpha?=?0:pi/20:2*pi;%角度[02*pi]
????????R?=?TxRange;%半徑
????????x?=?R*cos（alpha）;
????????y?=?R*sin（alpha）;
????????%?the?terminal?to?be?relay?node
????????Phase_relay?=?2*pi*rand（1Node_set）;
????????Distance_relay?=?R*rand（1Node_set）;
????????Relay_Pos?=??[Distance_relay.*cos（Phase_relay）;
????????????Distance_relay.*sin（Phase_relay）];
????????%?plot?the?network
????????if（PlotOn）
????????????figure（1）;
????????????clf;
????????????plot（Destination_Pos（1）Destination_Pos（2）‘ro‘?‘MarkerFaceColor‘‘r‘）;?hold?on;
????????????text（Destination_Pos（1）+0.1Destination_Pos（2）‘Rx‘）;
????????????plot（xy‘m-‘‘linewidth‘2）;axis?equal;
????????????
????????????plot（Source_Pos（1）Source_Pos（2）‘ks‘?‘MarkerFaceColor‘‘k‘）;
????????????text（Source_Pos（1）+0.1Source_Pos（2）‘Tx‘）;
????????????
????????????plot（Relay_Pos（1:）Relay_Pos（2:）‘b*‘）;
????????????title（‘network?topo‘）;
????????????
????????end;
????????%?CR?Tx?signal?generator
????????[Ofdm_cp?TxBit]?=?CR_Tx（）;
????????
????????%%?direct?transmitter
????????%?determine?the?snr?of?direct?path
????????Thermal_noise?=?-174+60+10*log10（BandWidth）;%?in?dBm
????????%?sig?power
????????sig_pow?=?Thermal_noise?+?snr_Th;
????????%?determine?the?tx?power?from?path?loss
????????PL?=?128.1+37.6*log10（TxRange*0.001）;
????????TX_dB_direct?=?sig_pow?+?PL;%?in?dBm
????????Tx_power_direct?=?10.^（0.1*TX_dB_direct）;
????????%%???cooperative?transmitter
????????
????????%?path?loss?from?source?2?relay
????????Pos_source_relay?=?Relay_Pos?-?Destination_Pos*ones（1Node_set）;
????????Distance_source_relay?=?sqrt（Pos_source_relay（1:）.

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-10-10?15:39??源碼\
?????文件?????????645??2017-05-02?18:25??源碼\AF_MRC_NodeSet_100_RelayPower_50.mat
?????文件????????5367??2017-05-02?11:06??源碼\Cooperation_RealyNum_Distance_Sim.m
?????文件????????7791??2017-05-02?10:33??源碼\Cooperation_RealyNum_SNR_Sim.m
?????文件????????3015??2014-05-09?11:46??源碼\CR_Rx.m
?????文件????????3238??2014-05-09?11:46??源碼\CR_Tx.m
?????目錄???????????0??2017-05-02?10:30??源碼\requirement\
?????文件??????307520??2017-03-20?17:07??源碼\requirement\Partner?choice?and（山大論文中的參考文獻(xiàn)16）.pdf
?????文件???????23040??2017-04-27?21:45??源碼\requirement\request.doc
?????目錄???????????0??2018-10-10?15:39??演示\
?????文件????25999281??2017-05-02?22:54??演示\45607.mp4
?????文件??????????64??2018-10-10?16:34??說明.txt
?????目錄???????????0??2018-10-10?15:38??需求\
?????文件??????307520??2017-03-20?17:07??需求\Partner?choice?and（山大論文中的參考文獻(xiàn)16）.pdf
?????文件???????23040??2017-04-27?21:45??需求\request.doc