Order-Statistics Based Analysis of Distributed Antenna Systems with Limited RF Chains

Abstract

In this paper, we present a new theoretical analysis of the performance of a distributed antenna system (DAS) with a constraint on the number of RF chains. We consider a cooperating network model with receiver sites distributed across the network. Each receive site is equipped with a limited number of RF chains that picks the best set of antennas based on the channel between the transmitter and the receiver. Considering a hybrid generalized selection/maximal ratio combining (GS/MRC) scheme, we derive new expressions for three important performance measures, namely, the achievable rate, symbol error probability (SEP) and outage probability. Our expressions are based on closed-form expressions..