Protocols For Half-Duplex Multiple Relay Networks
P. Rost, G. Fettweis

TL;DR
This paper introduces new strategies for half-duplex relay networks, including decode-and-forward and compress-and-forward methods, improving achievable data rates in multi-relay communication scenarios.
Contribution
It presents generalized achievable rates for half-duplex relay networks using multilevel partial decode-and-forward and compress-and-forward schemes, including a mixed strategy for four-terminal networks.
Findings
Achievable rates for multilevel partial decode-and-forward.
Simplified compress-and-forward encoding scheme with improved rates.
Achievable rates for mixed relay strategies in four-terminal networks.
Abstract
In this paper we present several strategies for multiple relay networks which are constrained by a half-duplex operation, i. e., each node either transmits or receives on a particular resource. Using the discrete memoryless multiple relay channel we present achievable rates for a multilevel partial decode-and-forward approach which generalizes previous results presented by Kramer and Khojastepour et al.. Furthermore, we derive a compress-and-forward approach using a regular encoding scheme which simplifies the encoding and decoding scheme and improves the achievable rates in general. Finally, we give achievable rates for a mixed strategy used in a four-terminal network with alternately transmitting relay nodes.
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Taxonomy
TopicsCooperative Communication and Network Coding · Full-Duplex Wireless Communications · Wireless Communication Security Techniques
