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A novel quantize-and-forward cooperative system : channel parameter estimation techniques

Iancu Avram (UGent) , Nico Aerts (UGent) and Marc Moeneclaey (UGent)
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Abstract
The Quantize and Forward cooperative communication protocol improves the reliability of data transmission by allowing a relay to forward to the destination a quantized version of the signal received from the source. In prior studies of the Quantize and Forward protocol, all channel parameters are assumed to be perfectly known at the destination, while in reality these need to be estimated. This paper proposes a novel Quantize and Forward protocol in which the relay compensates for the rotation on the source-relay channel using a crude channel estimate, before quantizing the phase of the received M-PSK data symbols. Therefore, as far as the source-relay channel is concerned, only an SNR estimate is needed at the destination. Further, the destination applies the EM algorithm to improve the estimates of the source-destination and relay-destination channel coefficients. The resulting performance is shown to be close to that of a system with known channel parameters.
Keywords
Cooperative communication, Quantize and Forward, EM algorithm

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MLA
Avram, Iancu, Nico Aerts, and Marc Moeneclaey. “A Novel Quantize-and-forward Cooperative System : Channel Parameter Estimation Techniques.” Future Network and Mobile Summit 2010 Conference Proceedings. Ed. Paul Cunningham & Miriam Cunningham. International Information Management Corporation (IIMC), 2010. Print.
APA
Avram, I., Aerts, N., & Moeneclaey, M. (2010). A novel quantize-and-forward cooperative system : channel parameter estimation techniques. In Paul Cunningham & M. Cunningham (Eds.), Future Network and Mobile Summit 2010 conference proceedings. Presented at the Future Network and Mobile Summit 2010, International Information Management Corporation (IIMC).
Chicago author-date
Avram, Iancu, Nico Aerts, and Marc Moeneclaey. 2010. “A Novel Quantize-and-forward Cooperative System : Channel Parameter Estimation Techniques.” In Future Network and Mobile Summit 2010 Conference Proceedings, ed. Paul Cunningham and Miriam Cunningham. International Information Management Corporation (IIMC).
Chicago author-date (all authors)
Avram, Iancu, Nico Aerts, and Marc Moeneclaey. 2010. “A Novel Quantize-and-forward Cooperative System : Channel Parameter Estimation Techniques.” In Future Network and Mobile Summit 2010 Conference Proceedings, ed. Paul Cunningham and Miriam Cunningham. International Information Management Corporation (IIMC).
Vancouver
1.
Avram I, Aerts N, Moeneclaey M. A novel quantize-and-forward cooperative system : channel parameter estimation techniques. In: Cunningham P, Cunningham M, editors. Future Network and Mobile Summit 2010 conference proceedings. International Information Management Corporation (IIMC); 2010.
IEEE
[1]
I. Avram, N. Aerts, and M. Moeneclaey, “A novel quantize-and-forward cooperative system : channel parameter estimation techniques,” in Future Network and Mobile Summit 2010 conference proceedings, Florence, Italy, 2010.
@inproceedings{1092818,
  abstract     = {The Quantize and Forward cooperative communication protocol improves the reliability of data transmission by allowing a relay to forward to the destination a quantized version of the signal received from the source. In prior studies of the Quantize and Forward protocol, all channel parameters are assumed to be perfectly known at the destination, while in reality these need to be estimated. This paper proposes a novel Quantize and Forward protocol in which the relay compensates for the rotation on the source-relay channel using a crude channel estimate, before quantizing the phase of the received M-PSK data symbols. Therefore, as far as the source-relay channel is concerned, only an SNR estimate is needed at the destination. Further, the destination applies the EM algorithm to improve the estimates of the source-destination and relay-destination channel coefficients. The resulting performance is shown to be close to that of a system with known channel parameters.},
  author       = {Avram, Iancu and Aerts, Nico and Moeneclaey, Marc},
  booktitle    = {Future Network and Mobile Summit 2010 conference proceedings},
  editor       = {Cunningham, Paul and Cunningham, Miriam},
  isbn         = {9781905824168},
  keywords     = {Cooperative communication,Quantize and Forward,EM algorithm},
  language     = {eng},
  location     = {Florence, Italy},
  pages        = {8},
  publisher    = {International Information Management Corporation (IIMC)},
  title        = {A novel quantize-and-forward cooperative system : channel parameter estimation techniques},
  year         = {2010},
}