International Journal of Communications, Network and System Sciences

Volume 4, Issue 9 (September 2011)

ISSN Print: 1913-3715   ISSN Online: 1913-3723

Google-based Impact Factor: 0.84  Citations  h5-index & Ranking

A Simple Symbol Estimation for Soft Information Relaying in Cooperative Relay Channels

HTML  Download Download as PDF (Size: 867KB)  PP. 568-577  
DOI: 10.4236/ijcns.2011.49068    5,182 Downloads   9,169 Views   Citations

ABSTRACT

This paper proposes Symbol-based Soft Forwarding (SSF) protocol for coded transmissions which is based on a simple proposed soft symbol estimation at relay nodes. We present a simple strategy of forwarding soft information based on a simple linear summation of likelihood functions of each symbol. Specifically, with SSF, we demonstrate that exclusion of decoding at the relays costs no significant performance loss. To validate our claims, we examine bit error rate (BER) performance for the proposed scheme against the baseline SF scheme through computer simulations. We find that the proposed scheme can obtain considerable performance gains compared to the conventional relaying protocol.

Cite this paper

A. Aziz and Y. Iwanami, "A Simple Symbol Estimation for Soft Information Relaying in Cooperative Relay Channels," International Journal of Communications, Network and System Sciences, Vol. 4 No. 9, 2011, pp. 568-577. doi: 10.4236/ijcns.2011.49068.

Cited by

[1] On Throughput Characteristics of Type II Hybrid-ARQ with Decode and Forward Relay using Non-Binary Rate-Compatible Punctured LDPC Codes
ICWMC 2012, The Eighth International Conference on Wireless and Mobile Communications, 2012

Copyright © 2020 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.