Dual constellation diversity-enhanced modulation for network-coded bidirectional relaying in an asymmetric channel

Hyun Seok Ryu, Chung Gu Kang

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

1 Citation (Scopus)

Abstract

In this paper, we consider a modulation scheme for a network-coded bi-directional relaying (CBR) scheme in which two different signals from mutually communicating nodes are network-coded in the relay node. It employs dual constellations as a useful means of dealing with its performance degradation in the CBR over asymmetric channel (i.e., the different signal-to-noise ratio in each link), which provide not only a diversity gain from the symbol repetition but also a coding gain from the constellation rearrangement to protect the network-coded symbols. We study the channel utilization and bit error rate performance of the different CBR schemes to show that the proposed diversity-enhanced CBR system always outperforms other existing systems as long as traffic load is properly balanced along the bi-directional links.

Original languageEnglish
Title of host publicationIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
DOIs
Publication statusPublished - 2009 Dec 1
Event2009 IEEE 20th Personal, Indoor and Mobile Radio Communications Symposium, PIMRC 2009 - Tokyo, Japan
Duration: 2009 Sep 132009 Sep 16

Other

Other2009 IEEE 20th Personal, Indoor and Mobile Radio Communications Symposium, PIMRC 2009
CountryJapan
CityTokyo
Period09/9/1309/9/16

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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    Ryu, H. S., & Kang, C. G. (2009). Dual constellation diversity-enhanced modulation for network-coded bidirectional relaying in an asymmetric channel. In IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC [5449954] https://doi.org/10.1109/PIMRC.2009.5449954