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GLOBECOM
2010
IEEE

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

8 years 5 months ago
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.
Dandan Liang, Soon Xin Ng, Lajos Hanzo
Added 11 Feb 2011
Updated 11 Feb 2011
Type Journal
Year 2010
Where GLOBECOM
Authors Dandan Liang, Soon Xin Ng, Lajos Hanzo
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