Effect of Estimation Error on Adaptive L-MRC Receiver over Nakagami-m Fading Channels

摘要

One of the key challenges in wireless communication is to deliver high speed data, using a limited bandwidth, among a large group of user. Adaptive diversity receiver is a very popular potential solution in wireless system design, to achieve this goal. However, the ideal estimation technique which is considered to optimize the performance of a diversity receiver is difficult to implement. Hence, in a practical scenario, the system performance of a diversity receiver is considerably degraded. In this paper the expression for average bit error rate (ABER) and outage probability has been derived and studied for an arbitrary branch maximum ratio combiner (L-MRC) system for different modulation techniques over Nakagami-m fading channels considering estimation error.