Toward a Better Comprehension of Decode-and-Forward Buffer-Aided Relaying: Case Study of a Single Relay.

This work considers the problem of decode-and-forward (DF) buffer-aided (BA) relaying with a single relay. For this scenario, a Markov chain analysis is tractable resulting in closed-form performance measures that can shed more light on the capabilities of the more general BA networks. In particular, a novel generic relaying scheme is proposed and this scheme encompasses many of the existing single relay schemes as special cases. The proposed scheme is controlled by a single parameter and the letter highlights on the impact of this parameter on the triad of diversity gain, coding gain and queuing delay that can be contemplated. [ABSTRACT FROM AUTHOR]