function?ber=ber_QAM（EbN0dBMAWGN_or_Rayleigh）
%?Find?analytical?BER?of?M-ary?QAM?in?AWGN?or?Rayleigh?channel
%?EbN0dB=EbN0dB:?Energy?per?bit-to-noise?power[dB]?for?AWGN?channel
%?=rdB?:?Average?SNR（2*sigma?Eb/N0）[dB]?for?Rayleigh?channel
%?M?=?Modulation?order?（Alphabet?or?Constellation?size）
N=?length（EbN0dB）;?sqM=?sqrt（M）;
a=?2*（1-power（sqM-1））/log2（sqM）;?b=?6*log2（sqM）/（M-1）;
if?nargin<3?AWGN_or_Rayleigh=‘AWGN‘;?end
if?lower（AWGN_or_Rayleigh（1））==‘a‘
ber?=?a*Q（sqrt（b*10.^（EbN0dB/10）））;?%?ber=berawgn（EbN0dB’QAM’M）?Eq.（4.25）
else?%?diversity_order=1;?ber=berfading（EbN0dB’QAM’Mdiversity_order）
rn=b*10.^（EbN0dB/10）/2;?ber?=?0.5*a*（1-sqrt（rn./（rn+1）））;?%?Eq.（4.26）
end

?屬性????????????大小?????日期????時間???名稱
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?????文件????????699??2012-07-06?19:45??ofdm_mimo\ber_QAM.m

?????文件????????168??2012-07-06?19:45??ofdm_mimo\guard_interval.m

?????文件????5244704??2012-07-06?19:45??ofdm_mimo\MIMO-OFDM?Wireless?Communications?with?MATLAB?Yong?Soo?Cho?Jaekwon?Kim?Won?Young?Yang?Chung?G.?Kang?Wiley?2010.pdf

?????文件???????3455??2012-07-06?19:45??ofdm_mimo\ofdm_basic.m

?????文件?????????58??2012-07-06?19:45??ofdm_mimo\OFDM_BER_AWGN_CP_GL16.dat

?????文件????????417??2012-07-06?19:45??ofdm_mimo\plot_ber.m

?????文件????????112??2012-07-06?19:45??ofdm_mimo\Q.m

?????文件????????262??2012-07-06?19:45??ofdm_mimo\remove_GI.m

?????目錄??????????0??2012-07-06?19:45??ofdm_mimo

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