wimax 系统仿真

外国一个大学做的WIMAX系统仿真，matlab,什么都有了！

function H = channel_matrix（ChanMod）
global init;
persistent block;
persistent rv;

if strcmp（ChanMod.UserScenario‘Test‘）
    NTap = size（ChanMod.PDP_dB2）;                         % Number of Taps
    TDel = round（0.1e9.*ChanMod.PDP_dB（2:））;              % Delays （nanosecond samples）
    Tlen = max（TDel）;                                      % Maximum Tap-delay
    H = zeros（ChanMod.nRXChanMod.nTXTlen）;
    for tap = 1 : NTap
        G = 1;%randn（ChanMod.nRXChanMod.nTX） + j*randn（ChanMod.nRXChanMod.nTX）;
        H（::TDel（1tap）+1） = ...
            sqrt（10.^（ChanMod.PDP_dB（1tap）./10））*G;
    end
else
    NTap = size（ChanMod.PDP_dB2）;                         % Number of Taps
    H = zeros（ChanMod.nRXChanMod.nTXChanMod.PDP_dB（end）+1）;
    switch ChanMod.Type
        case ‘BlockFading‘
            % generate channel realization
            for tap = 1 : NTap
                if ChanMod.K == 0
                G = （randn（ChanMod.nRXChanMod.nTX） + j*randn（ChanMod.nRXChanMod.nTX））/sqrt（2）;
                H（::ChanMod.PDP_dB（2tap）+1） = ...
                    sqrt（10.^（ChanMod.PDP_dB（1tap）./10））.*...
                    （sqrtm（squeeze（ChanMod.rRX（tap::）））*G*...
                    （sqrtm（squeeze（ChanMod.rTX（tap::））））.‘）;
                else
                G = （randn（ChanMod.nRXChanMod.nTX） + j*randn（ChanMod.nRXChanMod.nTX））/sqrt（2）;
                H（::ChanMod.PDP_dB（2tap）+1） = ...
                    sqrt（ChanMod.K/（ChanMod.K+1））*exp（j*rand（ChanMod.nRXChanMod.nTX）*2*pi） + ...
                    sqrt（1/（ChanMod.K+1））*sqrt（10.^（ChanMod.PDP_dB（1tap）./10））.*...
                    （sqrtm（squeeze（ChanMod.rRX（tap::）））*G*...
                    （sqrtm（squeeze（ChanMod.rTX（tap::））））.‘）;                   
                end
            end
        case ‘TV_Block‘ 
            H = zeros（ChanMod.nRXChanMod.nTXChanMod.PDP_dB（end）+1）;
            if init
                rv = zeros（ChanMod.nRXChanMod.nTXNTap3ChanMod.Paths）;
            end
            error（‘the function “jakes“ is not available in the open source version of the WiMAX simulator‘）
            for tap = 1:NTap
                for mm = 1:ChanMod.nTX
                    for nn = 1:ChanMod.nRX
                        if init
                            block = 0;
                            [H（nnmmChanMod.PDP_dB（2tap）+1）rv（nnmmtap::）] = jakes（ChanMod.f_d_max1/ChanMod.FreqChanMod.Paths1‘JAKES‘block*ChanMod.InputSamplesNoTail/ChanMod.Freq[]）;
                            H（nnmmChanMod.PDP_dB（2tap）+1） = sqrt（10.^（ChanMod.PDP_dB（1tap）./10））.*H（nnmmChanMod.PDP_dB（2tap）+1:）;
                        else
                            H（nnmmChanMod.PDP_dB（2tap）+1） = sqrt（10.^（ChanMod.PDP_dB（1tap）./10））.*jakes（ChanMod.f_d_max1/ChanMod.FreqChanMod.Paths1‘JAKES‘block*ChanMod.InputSamplesNoTail/ChanMod.Freqsqueeze（rv（nnmmtap::）））;
                        end
                    end
       

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2008-11-13 13:21  WiMAX 2.2 online\
     文件        3595  2008-11-10 13:59  WiMAX 2.2 online\channel_matrix.m
     文件        3480  2008-11-10 13:58  WiMAX 2.2 online\channel_model.m
     文件       10240  2008-11-12 13:33  WiMAX 2.2 online\dbconvdec.mexw32
     文件       11264  2008-11-12 14:49  WiMAX 2.2 online\dbconvdec.mexw64
     文件        1242  2003-08-28 23:40  WiMAX 2.2 online\dec2binvec.m
     文件        5369  2006-11-20 10:16  WiMAX 2.2 online\GoldenCode_4QAM_Table.mat
     目录           0  2008-11-10 13:46  WiMAX 2.2 online\LDPC_codes\
     文件      339506  2007-10-20 09:30  WiMAX 2.2 online\LDPC_codes\12672.dec
     文件      312132  2007-10-20 09:30  WiMAX 2.2 online\LDPC_codes\12672.enc
     文件      699924  2007-10-20 17:27  WiMAX 2.2 online\LDPC_codes\16896.dec
     文件     1385323  2007-10-20 17:27  WiMAX 2.2 online\LDPC_codes\16896.enc
     文件      691475  2007-10-20 10:14  WiMAX 2.2 online\LDPC_codes\25344.dec
     文件      671187  2007-10-20 10:14  WiMAX 2.2 online\LDPC_codes\25344.enc
     文件     1089135  2007-10-20 16:30  WiMAX 2.2 online\LDPC_codes\33792.dec
     文件     1252091  2007-10-20 16:30  WiMAX 2.2 online\LDPC_codes\33792.enc
     文件     1092756  2007-10-20 16:07  WiMAX 2.2 online\LDPC_codes\38016.dec
     文件     1063759  2007-10-20 16:07  WiMAX 2.2 online\LDPC_codes\38016.enc
     文件      166321  2007-10-20 10:41  WiMAX 2.2 online\LDPC_codes\4224.dec
     文件      216134  2007-10-20 10:41  WiMAX 2.2 online\LDPC_codes\4224.enc
     文件      343730  2007-10-20 09:45  WiMAX 2.2 online\LDPC_codes\8448.dec
     文件      513840  2007-10-20 09:45  WiMAX 2.2 online\LDPC_codes\8448.enc
     文件        3467  2007-10-29 16:46  WiMAX 2.2 online\ldpc_test.m
     文件       74131  2008-11-13 11:49  WiMAX 2.2 online\License Agreement WiMAX Simulator.pdf
     文件       12162  2008-11-10 14:27  WiMAX 2.2 online\load_parameters.m
     文件       11032  2008-11-10 16:55  WiMAX 2.2 online\load_parameters_dependent.m
     文件         427  2008-11-11 08:25  WiMAX 2.2 online\marginals2sym.m
     文件       12288  2008-11-12 13:37  WiMAX 2.2 online\mexLDPC.mexw32
     文件       15872  2008-11-12 14:50  WiMAX 2.2 online\mexLDPC.mexw64
     文件       12429  2008-11-10 17:29  WiMAX 2.2 online\qam_demapper_h.m
     目录           0  2008-11-13 13:23  WiMAX 2.2 online\results\
............此处省略15个文件信息