A Class of Bi-Directional Multi-Relay Protocols

Download Now Free registration required

Executive Summary

In a bi-directional relay channel, two nodes wish to exchange independent messages over a shared wireless half-duplex channel with the help of relays. Recent work has considered information theoretic limits of the bi-directional relay channel with a single relay. In this paper, the authors consider bidirectional relaying with multiple relays. They derive achievable rate regions and outer bounds for half-duplex protocols with multiple decode and forward relays and compare these to the same protocols with amplify and forward relays in an additive white Gaussian noise channel.

  • Format: PDF
  • Size: 764.7 KB