BER and ergodic capacity of dual-hop relay channel in Nakagami-m fading
Xianfu Lei, Pingzhi Fan, P. Takis Mathiopoulos · 2009
We consider a dual-hop relay communication system with channel state information (CSI)-assisted amplify-and-forward (AF) relaying protocol. Assuming that the system operates in the presence of Nakagami-m fading, novel closed-form expressions for the exact average bit error rate (ABER) of BPSK signals and the ergodic capacity are derived. The proposed analysis is accompanied by numerical results, clearly demonstrating the usefulness of the theoretical approach.