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The modified cramer-rao bound for channel estimation in quantize-and-forward cooperative systems

Iancu Avram (UGent) and Marc Moeneclaey (UGent)
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Abstract
The quantize-and-forward (QF) cooperative protocol can effectively be used to combat fading in systems using half-duplex relay terminals. While the outage behavior of the QF protocol has been extensively investigated, few research has been performed on the impact of imperfect channel estimates. In this contribution, a lower bound (LB) on the estimation error is obtained for a one-hop relaying channel with data quantization at the relay. To this purpose the modified Cramer-Rao (MCRB) bound is calculated, which, compared to the true Cramer-Rao bound (CRB), is a looser and computationally less complex bound that converges to the CRB in the high signal-to-noise ratios. By using a general system model for the relay channel, the obtained results can be utilized to benchmark a wide variety of systems.
Keywords
CAPACITY, Cooperative communication, DIVERSITY, Quantize-and-Forward, Cramer-Rao Bound, Estimation

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Citation

Please use this url to cite or link to this publication:

MLA
Avram, Iancu, and Marc Moeneclaey. “The Modified Cramer-rao Bound for Channel Estimation in Quantize-and-forward Cooperative Systems.” IEEE Wireless Communications and Networking Conference (WCNC). IEEE, 2013. 2862–2867. Print.
APA
Avram, I., & Moeneclaey, M. (2013). The modified cramer-rao bound for channel estimation in quantize-and-forward cooperative systems. IEEE Wireless Communications and Networking Conference (WCNC) (pp. 2862–2867). Presented at the IEEE Wireless Communications and Networking Conference (WCNC), IEEE.
Chicago author-date
Avram, Iancu, and Marc Moeneclaey. 2013. “The Modified Cramer-rao Bound for Channel Estimation in Quantize-and-forward Cooperative Systems.” In IEEE Wireless Communications and Networking Conference (WCNC), 2862–2867. IEEE.
Chicago author-date (all authors)
Avram, Iancu, and Marc Moeneclaey. 2013. “The Modified Cramer-rao Bound for Channel Estimation in Quantize-and-forward Cooperative Systems.” In IEEE Wireless Communications and Networking Conference (WCNC), 2862–2867. IEEE.
Vancouver
1.
Avram I, Moeneclaey M. The modified cramer-rao bound for channel estimation in quantize-and-forward cooperative systems. IEEE Wireless Communications and Networking Conference (WCNC). IEEE; 2013. p. 2862–7.
IEEE
[1]
I. Avram and M. Moeneclaey, “The modified cramer-rao bound for channel estimation in quantize-and-forward cooperative systems,” in IEEE Wireless Communications and Networking Conference (WCNC), Shanghai, China, 2013, pp. 2862–2867.
@inproceedings{4261612,
  abstract     = {The quantize-and-forward (QF) cooperative protocol can effectively be used to combat fading in systems using half-duplex relay terminals. While the outage behavior of the QF protocol has been extensively investigated, few research has been performed on the impact of imperfect channel estimates. In this contribution, a lower bound (LB) on the estimation error is obtained for a one-hop relaying channel with data quantization at the relay. To this purpose the modified Cramer-Rao (MCRB) bound is calculated, which, compared to the true Cramer-Rao bound (CRB), is a looser and computationally less complex bound that converges to the CRB in the high signal-to-noise ratios. By using a general system model for the relay channel, the obtained results can be utilized to benchmark a wide variety of systems.},
  author       = {Avram, Iancu and Moeneclaey, Marc},
  booktitle    = {IEEE Wireless Communications and Networking Conference (WCNC)},
  isbn         = {9781467359399},
  keywords     = {CAPACITY,Cooperative communication,DIVERSITY,Quantize-and-Forward,Cramer-Rao Bound,Estimation},
  language     = {eng},
  location     = {Shanghai, China},
  pages        = {2862--2867},
  publisher    = {IEEE},
  title        = {The modified cramer-rao bound for channel estimation in quantize-and-forward cooperative systems},
  year         = {2013},
}

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