On the Achievable Rate of Multi-Hop Buffer-Aided Relay Networks

Abstract

In this paper, we focused on the achievable rate of multi-hop buffer-aided relay networks, where one source node is supposed to deliver message with the assistance of multi-hop buffer-aided relays to one destination node in a decode-and-forward manner. Unlike previous research efforts, not only buffer-aided transmission scheduling, but also adaptive power allocation at source node and all intermediate relays are taken into considerations to derive the theoretically achievable end-to-end rate. Analysis results showed that, both buffer-aided transmission strategy and optimal power allocations can significantly improve the end-to-end achievable rate.