Dispensing with channel estimation: differentially modulated cooperative wireless communications


Wang, Li and Hanzo, Lajos (2011) Dispensing with channel estimation: differentially modulated cooperative wireless communications IEEE Communications Surveys & Tutorials, 14, (3), pp. 836-857. (doi:10.1109/SURV.2011.081611.00138).

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Description/Abstract

As a bene?t of bypassing the potentially excessive complexity and yet inaccurate channel estimation, differentially encoded modulation in conjunction with low-complexity noncoherent detection constitutes a viable candidate for user-cooperative systems, where estimating all the links by the relays is unrealistic. In order to stimulate further research on differentially modulated cooperative systems, a number of fundamental challenges encountered in their practical implementations are addressed, including the time-variant-channel-induced performance erosion, ?exible cooperative protocol designs, resource allocation as well as its high-spectral-ef?ciency transceiver design. Our investigations demonstrate the quantitative bene?ts of cooperative wireless networks both from a pure capacity perspective as well as from a practical system design perspective.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1109/SURV.2011.081611.00138
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Organisations: Southampton Wireless Group
ePrint ID: 272818
Date :
Date Event
1 September 2011e-pub ahead of print
27 July 2012Published
Date Deposited: 20 Sep 2011 21:26
Last Modified: 17 Apr 2017 17:38
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/272818

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