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ber2SNR_DAF.m
Package: cooperative.rar [view]
Upload User: cjx922
Upload Date: 2017-12-13
Package Size: 205k
Code Size: 1k
Category:
Communication
Development Platform:
Matlab
- function [SNR]=ber2SNR_DAF(ber_srd,modulation_type,fading_type);
- %used for calculating SNR of DAF
- switch fading_type
- case 'no'
- switch modulation_type
- case 'BPSK'
- SNR=((qinv(ber_srd)).^2)./2;
- case 'QPSK'
- SNR=qinv(ber_srd).^2;
- otherwise
- error(['Modulation type unkonwn:',modulation_type])
- end
- case 'Rayleigh'
- switch modulation_type
- case 'BPSK'
- SNR=(1-2.*ber_srd).^2./((ber_srd-ber_srd.^2).*8);
- case 'QPSK'
- SNR=(1-2.*ber_srd).^2./((ber_srd-ber_srd.^2).*4);
- otherwise
- error(['Modulation type unkonwn:',modulation_type])
- end
- otherwise
- error(['Fading type unknown:',fading_type])
- end