Soft-bit correction with robust quantize-and-forward for physical layer network coding in two-way relay fading channel

Dong Fang*, Alister G. Burr

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In this paper, we propose a novel fading correction and relaying scheme for physical layer network coding (PLNC) in the two-way relay (TWR) fading channel. The fading correction on the soft-bit level at nodes can eliminate the effect of fading on the TWR channel. In order to broadcast the soft-bit in an optimal way, we design a quantize-and-forward scheme which is robust for the TWR fading channel. In addition, an optimized mapping is used to implement unequal error protection (UEP) for bits with different significance in the quantization index. The soft-bit correction and the robust quantize-and-forward scheme are fully compatible with one another. Both low complexity and good performance can be provided.

Original languageEnglish
Title of host publicationIEEE International Conference on Communications
Number of pages5
Publication statusPublished - 1 Dec 2012
Event2012 IEEE International Conference on Communications, ICC 2012 - Ottawa, ON, United Kingdom
Duration: 10 Jun 201215 Jun 2012


Conference2012 IEEE International Conference on Communications, ICC 2012
Country/TerritoryUnited Kingdom
CityOttawa, ON

Cite this