Dispensing with channel estimation: differentially modulated cooperative wireless communications
Dispensing with channel estimation: differentially modulated cooperative wireless communications
As a benefit 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, flexible cooperative protocol designs, resource allocation as well as its high-spectral-efficiency transceiver design. Our investigations demonstrate the quantitative benefits of cooperative wireless networks both from a pure capacity perspective as well as from a practical system design perspective.
836-857
Wang, Li
48544830-2bcb-4cfa-a33e-343ebfbe4aac
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
27 July 2012
Wang, Li
48544830-2bcb-4cfa-a33e-343ebfbe4aac
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Wang, Li and Hanzo, Lajos
(2012)
Dispensing with channel estimation: differentially modulated cooperative wireless communications.
IEEE Communications Surveys & Tutorials, 14 (3), .
(doi:10.1109/SURV.2011.081611.00138).
Abstract
As a benefit 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, flexible cooperative protocol designs, resource allocation as well as its high-spectral-efficiency transceiver design. Our investigations demonstrate the quantitative benefits of cooperative wireless networks both from a pure capacity perspective as well as from a practical system design perspective.
Text
differential_coop.pdf
- Accepted Manuscript
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e-pub ahead of print date: 1 September 2011
Published date: 27 July 2012
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 272818
URI: http://eprints.soton.ac.uk/id/eprint/272818
PURE UUID: 747e201c-75cc-4d31-8bb1-29595261aa3b
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Date deposited: 20 Sep 2011 21:26
Last modified: 18 Mar 2024 02:35
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Contributors
Author:
Li Wang
Author:
Lajos Hanzo
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