Transmit Signal and Bandwidth Optimization in Multiple-Antenna Relay Channels

Abstract

Transmit signal and bandwidth optimization is considered in multiple-antenna relay channels. Assuming all terminals have channel state information, the cut-set capacity upper bound and decode-and-forward rate under full-duplex relaying are evaluated by formulating them as convex optimization problems. For half-duplex relays, bandwidth allocation and transmit signals are optimized jointly. Moreover, achievable rates based on the compress-and-forward transmission strategy are presented using rate-distortion and Wyner-Ziv compression schemes. It is observed that when the relay is close to the source, decode-and-forward is almost optimal, whereas compress-and-forward achieves good performance when the relay is close to the destination.

16 pages, 10 figures

References in corpus (1)

• The Impact of CSI and Power Allocation on Relay Channel Capacity and Cooperation Strategies

Cited by in corpus (6)

• The Approximate Capacity of the MIMO Relay Channel
• Optimal Resource Allocation and Relay Selection in Bandwidth Exchange Based Cooperative Forwarding
• The Optimal Input Distribution for Partial Decode-and-Forward in the MIMO Relay Channel
• Analysis of Coverage Region for MIMO Relay Network with Multiple Cooperative DF-Relays
• Analysis of Coverage Region for MIMO Relay Channel
• Coverage Region Analysis for MIMO Amplify-and-Forward Relay Channel with the Source to Destination Link