Approximate SEP Analysis for DF Cooperative Networks With Opportunistic Relaying
He Henry Chen, Ju Liu, Lina Zheng, Chao Zhai, Yong Zhou · IEEE Signal Processing Letters · 2010
We analyze the symbol error probability (SEP) performance of cooperative diversity networks with opportunistic decode-and-forward (ODF) relaying. Assuming that channels suffer from independent nonidentical Rayleigh fading and symbols are M-PSK modulated, the approximate closed-form SEP expressions are derived for opportunistic relaying with adaptive and fixed DF protocols, respectively. Simulations are carried out to validate the theoretical analysis. Results show that the derived approximate SEP is tight particularly at medium and high SNR.