%?HuaWei?5G非正交多址方案SCMA仿真
clear;
rng（3）;

frame_num?=?1000;
iter_num?=?10;???%?3~15
M?=?2;??????????%?2/3/4

S?=?[
????1?1?1?0?0?0
????2?0?0?1?1?0
????0?2?0?2?0?1
????0?0?2?0?2?2];??????????????????%?SCMA簽名矩陣

%?調制圖案
switch?M
????case?2
????????mod_map?=?[1?1;?1?-1;?-1?1;?-1?-1]/sqrt（2）;
????case?3
????????mod_map?=?[1?0;?0?1;?0?-1;?-1?0];
????case?4
????????mod_map?=?[1+1i?1+1i;?1-1i?1-1i;?-1+1i?-1+1i;?-1-1i?-1-1i]/2;
end

N?=?4;?????????????????????????????%?校驗節點數量
K?=?6;?????????????????????????????%?信息節點數量
sigma2?=?1;
search_space?=?fullfact（[4?4?4]）;??%?全搜索空間
search_depth?=?4*4*4;??????????????%?搜索空間大小

err_tb_cnt?=?0;
for?frame_id?=?1:frame_num
????
????frame_id
????
????user_num?=?6;
????snr?=?randi（[4?20]?user_num?1）;
????h?=?sqrt（db2pow（snr））.

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????2747??2020-10-27?22:49??main.m