Hierarchically modulated network coding for asymmetric two-way relay systems

Jung Min Park; Seong Lyun Kim; Jinho Choi

doi:10.1109/TVT.2010.2045521

Hierarchically modulated network coding for asymmetric two-way relay systems

Jung Min Park, Seong Lyun Kim, Jinho Choi

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article

49 Citations (Scopus)

Abstract

Network coding has been known as a spectrally efficient technique in wireless networks. However, when it is applied to a two-way relay channel (TWRC), it suffers from performance degradation caused by the asymmetric position of the relay. In this paper, we suggest remedying this problem by using hierarchical modulation at the source node. We investigate how hierarchical modulation can be incorporated and optimized with network coding. Our results are encouraging in that hierarchically modulated network coding (HMNC) significantly improves end-to-end bit-error probability and spectral efficiency in asymmetric relay channels, as compared with direct transmission (DT), bidirectional network coding (BNC), and coded bidirectional relay (CBR).

Original language	English
Article number	5430953
Pages (from-to)	2179-2184
Number of pages	6
Journal	IEEE Transactions on Vehicular Technology
Volume	59
Issue number	5
DOIs	https://doi.org/10.1109/TVT.2010.2045521
Publication status	Published - 2010 Jun

All Science Journal Classification (ASJC) codes

Automotive Engineering
Aerospace Engineering
Applied Mathematics
Electrical and Electronic Engineering

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Park, J. M., Kim, S. L., & Choi, J. (2010). Hierarchically modulated network coding for asymmetric two-way relay systems. IEEE Transactions on Vehicular Technology, 59(5), 2179-2184. [5430953]. https://doi.org/10.1109/TVT.2010.2045521

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