article · 2012
Bit-wise combining for decode-and-forward relays
Cited by 0Abstract and details only
Abstract
We consider the problem of combining the signals received from a decode-and-forward relay with those received from the source. As an alternative to the high-complexity maximum-likelihood combining strategy, we propose a bit-wise combining strategy in which the received signals are first converted to log-likelihood values before being combined. We show that, subject to the bit-wise constraint, the optimal combining strategy for binary alphabets - minimizing the probability of error - applies a sigmoidal nonlinearity to the relay log-likelihood values before adding to the source log-likelihood values. Unlike the maximal-ratio combining strategy, which has no diversity for the Rayleigh-fading decode-and-forward relay channel, the proposed strategy exhibits the maximum diversity order of two.
Cite this paper
Kim, N., & Barry, J. R. (2012). Bit-wise combining for decode-and-forward relays. https://doi.org/10.1109/wcncw.2012.6215476
Kim, Namshik, and John R. Barry. “Bit-wise combining for decode-and-forward relays.” 2012, pp. 132–36, https://doi.org/10.1109/wcncw.2012.6215476.
Kim, Namshik, and John R. Barry. 2012. “Bit-wise combining for decode-and-forward relays.” https://doi.org/10.1109/wcncw.2012.6215476.
Kim, N. and Barry, J.R. (2012) ‘Bit-wise combining for decode-and-forward relays’. Available at: https://doi.org/10.1109/wcncw.2012.6215476.
@article{kim2012wise,
title = {{Bit-wise combining for decode-and-forward relays}},
author = {Kim, Namshik and Barry, John R.},
pages = {132--136},
year = {2012},
doi = {10.1109/wcncw.2012.6215476}
}Made from the index record. Check names, capitalisation and page numbers against the paper. Need another style? AI for Research has over 10,000.