TY - GEN
T1 - Performance analysis of selective decode-and-forward multinode incremental relaying with maximal ratio combining
AU - Hadjtaieb, Amir
AU - Chelli, Ali
AU - Alouini, Mohamed Slim
AU - Boujemaa, Hatem
PY - 2014
Y1 - 2014
N2 - In this paper, we propose an incremental multinode relaying protocol with arbitrary N-relay nodes that allows an efficient use of the channel spectrum. The destination combines the received signals from the source and the relays using maximal ratio combining (MRC). The transmission ends successfully once the accumulated signal-to-noise ratio (SNR) exceeds a predefined threshold. The number of relays participating in the transmission is adapted to the channel conditions based on the feedback from the destination. The use of incremental relaying allows obtaining a higher spectral efficiency. Moreover, the symbol error probability (SEP) performance is enhanced by using MRC at the relays. The use of MRC at the relays implies that each relay overhears the signals from the source and all previous relays and combines them using MRC. The proposed protocol differs from most of existing relaying protocol by the fact that it combines both incremental relaying and MRC at the relays for a multinode topology. Our analyses for a decode-and-forward mode show that: (i) compared to existing multinode relaying schemes, the proposed scheme can essentially achieve the same SEP performance but with less average number of time slots, (ii) compared to schemes without MRC at the relays, the proposed scheme can approximately achieve a 3 dB gain.
AB - In this paper, we propose an incremental multinode relaying protocol with arbitrary N-relay nodes that allows an efficient use of the channel spectrum. The destination combines the received signals from the source and the relays using maximal ratio combining (MRC). The transmission ends successfully once the accumulated signal-to-noise ratio (SNR) exceeds a predefined threshold. The number of relays participating in the transmission is adapted to the channel conditions based on the feedback from the destination. The use of incremental relaying allows obtaining a higher spectral efficiency. Moreover, the symbol error probability (SEP) performance is enhanced by using MRC at the relays. The use of MRC at the relays implies that each relay overhears the signals from the source and all previous relays and combines them using MRC. The proposed protocol differs from most of existing relaying protocol by the fact that it combines both incremental relaying and MRC at the relays for a multinode topology. Our analyses for a decode-and-forward mode show that: (i) compared to existing multinode relaying schemes, the proposed scheme can essentially achieve the same SEP performance but with less average number of time slots, (ii) compared to schemes without MRC at the relays, the proposed scheme can approximately achieve a 3 dB gain.
UR - http://www.scopus.com/inward/record.url?scp=84904606788&partnerID=8YFLogxK
U2 - 10.1109/ComNet.2014.6840928
DO - 10.1109/ComNet.2014.6840928
M3 - Conference contribution
AN - SCOPUS:84904606788
SN - 9781479937615
T3 - 4th International Conference on Communications and Networking, ComNet 2014 - Proceedings
BT - 4th International Conference on Communications and Networking, ComNet 2014 - Proceedings
PB - IEEE Computer Society
T2 - 4th International Conference on Communications and Networking, ComNet 2014
Y2 - 19 March 2014 through 22 March 2014
ER -