Improved diversity-multiplexing tradeoff for underwater acoustic channels based on distributed channel coding

Amir Minayi Jalil, Ali Ghrayeb

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

Abstract

Multiuser cooperative schemes usually rely on relay selection or channel selection to avoid deep fading and achieve diversity for all source nodes while maintaining acceptable spectral efficiency. This requires estimating the channel state information (CSI) and reporting it back to the resource allocator. Then the resource allocator needs to inform each node about its task. In some applications, it is impractical to collect the required CSI. For example, in underwater acoustic channels, the low speed of the acoustic wave (500 m/s) leads to a very long delay between the measured CSI and the reported CSI, making the provided CSI severely 'outdated'. To remedy this, we propose a new distributed coding scheme to avoid deeply faded channels and achieve cooperative diversity for multiuser applications where CSI is not available. We consider a network consisting of multiple sources, multiple relays, and a single destination. The proposed scheme is based on a distributed implementation of linear block codes and achieves a better diversity-multiplexing tradeoff (DMT) compared to the competitive schemes. In this scheme, each relay node implements a column of the generator matrix of the code. Each relay receives the symbols from one or more source nodes and performs modulo-q addition on the decoded symbols and retransmits the result to the destination. Finally, soft decoding is employed at the destination to retrieve the transmitted information. We prove that the proposed scheme achieves diversity dmin for the end-to-end (E2E) performance, where dmin is the minimum distance of the underlying code.

Original languageEnglish
Title of host publication2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013
Pages1249-1254
Number of pages6
DOIs
Publication statusPublished - 2013
Event2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013 - London, United Kingdom
Duration: 8 Sep 201311 Sep 2013

Other

Other2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013
CountryUnited Kingdom
CityLondon
Period8/9/1311/9/13

Fingerprint

Underwater acoustics
Channel coding
Channel state information
Multiplexing
Block codes
Decoding
Acoustic waves

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Jalil, A. M., & Ghrayeb, A. (2013). Improved diversity-multiplexing tradeoff for underwater acoustic channels based on distributed channel coding. In 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013 (pp. 1249-1254). [6666330] https://doi.org/10.1109/PIMRC.2013.6666330

Improved diversity-multiplexing tradeoff for underwater acoustic channels based on distributed channel coding. / Jalil, Amir Minayi; Ghrayeb, Ali.

2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013. 2013. p. 1249-1254 6666330.

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

Jalil, AM & Ghrayeb, A 2013, Improved diversity-multiplexing tradeoff for underwater acoustic channels based on distributed channel coding. in 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013., 6666330, pp. 1249-1254, 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013, London, United Kingdom, 8/9/13. https://doi.org/10.1109/PIMRC.2013.6666330
Jalil AM, Ghrayeb A. Improved diversity-multiplexing tradeoff for underwater acoustic channels based on distributed channel coding. In 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013. 2013. p. 1249-1254. 6666330 https://doi.org/10.1109/PIMRC.2013.6666330
Jalil, Amir Minayi ; Ghrayeb, Ali. / Improved diversity-multiplexing tradeoff for underwater acoustic channels based on distributed channel coding. 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013. 2013. pp. 1249-1254
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