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Relay-Induced Error Propagation Reduction for Decode-and-Forward Cooperative Communications

Relay-Induced Error Propagation Reduction for Decode-and-Forward Cooperative Communications
Relay-Induced Error Propagation Reduction for Decode-and-Forward Cooperative Communications
An attractive hybrid method of mitigating the effects of error propagation that may be imposed by the relay node (RN) on the destination node (DN) is proposed. We selected the most appropriate relay location for achieving a specific target Bit Error Ratio (BER) at the relay and signalled the RN-BER to the DN. The knowledge of this BER was then exploited by the decoder at the destination. Our simulation results show that when the BER at the RN is low, we do not have to activate the RN-BER aided decoder at the DN. However, when the RN-BER is high, significant system performance improvements may be achieved by activating the proposed RN-BER based decoding technique at the DN. For example, a power-reduction of up to about 19dB was recorded at a DN BER of 10-4.
978-1-4244-5637-6
Liang, Dandan
7ec17ba1-8959-4ee0-8f58-2e51c646ae23
Ng, Soon
e19a63b0-0f12-4591-ab5f-554820d5f78c
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Liang, Dandan
7ec17ba1-8959-4ee0-8f58-2e51c646ae23
Ng, Soon
e19a63b0-0f12-4591-ab5f-554820d5f78c
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Liang, Dandan, Ng, Soon and Hanzo, Lajos (2010) Relay-Induced Error Propagation Reduction for Decode-and-Forward Cooperative Communications. Globecom 2010, Miami, United States. 06 - 10 Dec 2010. (doi:10.1109/GLOCOM.2010.5683872).

Record type: Conference or Workshop Item (Paper)

Abstract

An attractive hybrid method of mitigating the effects of error propagation that may be imposed by the relay node (RN) on the destination node (DN) is proposed. We selected the most appropriate relay location for achieving a specific target Bit Error Ratio (BER) at the relay and signalled the RN-BER to the DN. The knowledge of this BER was then exploited by the decoder at the destination. Our simulation results show that when the BER at the RN is low, we do not have to activate the RN-BER aided decoder at the DN. However, when the RN-BER is high, significant system performance improvements may be achieved by activating the proposed RN-BER based decoding technique at the DN. For example, a power-reduction of up to about 19dB was recorded at a DN BER of 10-4.

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Published date: December 2010
Venue - Dates: Globecom 2010, Miami, United States, 2010-12-06 - 2010-12-10
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 271777
URI: http://eprints.soton.ac.uk/id/eprint/271777
ISBN: 978-1-4244-5637-6
PURE UUID: 60d6ea87-a35e-4382-b453-d5ba628d5b69
ORCID for Soon Ng: ORCID iD orcid.org/0000-0002-0930-7194
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

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Date deposited: 13 Dec 2010 18:13
Last modified: 07 Oct 2020 05:52

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