Pilot power optimization for AF relaying using maximum likelihood channel estimation

Kezhi Wang; Yunfei Chen; Mohamed Slim Alouini; Feng Xu

doi:10.1109/VTCFall.2014.6966131

Pilot power optimization for AF relaying using maximum likelihood channel estimation

Kezhi Wang, Yunfei Chen, Mohamed Slim Alouini, Feng Xu

Computer and Information Sciences Department

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Bit error rates (BERs) for amplify-and-forward (AF) relaying systems with two different pilot-symbol-aided channel estimation methods, disintegrated channel estimation (DCE) and cascaded channel estimation (CCE), are derived in Rayleigh fading channels. Based on these BERs, the pilot powers at the source and at the relay are optimized when their total transmitting powers are fixed. Numerical results show that the optimized system has a better performance than other conventional nonoptimized allocation systems. They also show that the optimal pilot power in variable gain is nearly the same as that in fixed gain for similar system settings.

Original language	English
Title of host publication	VTC2014-Fall
Subtitle of host publication	2014 IEEE 80th Vehicular Technology Conference, Proceedings
Publisher	IEEE
ISBN (Electronic)	9781479944491
DOIs	https://doi.org/10.1109/VTCFall.2014.6966131
Publication status	Published - 4 Dec 2014
Event	80th IEEE Vehicular Technology Conference, VTC 2014-Fall - Vancouver, Canada Duration: 14 Sept 2014 → 17 Sept 2014

Publication series

Name	IEEE Vehicular Technology Conference
Publisher	IEEE
ISSN (Print)	1090-3038

Conference

Conference	80th IEEE Vehicular Technology Conference, VTC 2014-Fall
Country/Territory	Canada
City	Vancouver
Period	14/09/14 → 17/09/14

Access to Document

10.1109/VTCFall.2014.6966131

Cite this

@inproceedings{4222bc5cc2c64a93a9913abdd899c298,

title = "Pilot power optimization for AF relaying using maximum likelihood channel estimation",

abstract = "Bit error rates (BERs) for amplify-and-forward (AF) relaying systems with two different pilot-symbol-aided channel estimation methods, disintegrated channel estimation (DCE) and cascaded channel estimation (CCE), are derived in Rayleigh fading channels. Based on these BERs, the pilot powers at the source and at the relay are optimized when their total transmitting powers are fixed. Numerical results show that the optimized system has a better performance than other conventional nonoptimized allocation systems. They also show that the optimal pilot power in variable gain is nearly the same as that in fixed gain for similar system settings.",

author = "Kezhi Wang and Yunfei Chen and Alouini, {Mohamed Slim} and Feng Xu",

year = "2014",

month = dec,

day = "4",

doi = "10.1109/VTCFall.2014.6966131",

language = "English",

series = "IEEE Vehicular Technology Conference",

publisher = "IEEE",

booktitle = "VTC2014-Fall",

address = "United States",

note = "80th IEEE Vehicular Technology Conference, VTC 2014-Fall ; Conference date: 14-09-2014 Through 17-09-2014",

}

Wang, K, Chen, Y, Alouini, MS & Xu, F 2014, Pilot power optimization for AF relaying using maximum likelihood channel estimation. in VTC2014-Fall: 2014 IEEE 80th Vehicular Technology Conference, Proceedings., 6966131, IEEE Vehicular Technology Conference, IEEE, 80th IEEE Vehicular Technology Conference, VTC 2014-Fall, Vancouver, Canada, 14/09/14. https://doi.org/10.1109/VTCFall.2014.6966131

Pilot power optimization for AF relaying using maximum likelihood channel estimation. / Wang, Kezhi; Chen, Yunfei; Alouini, Mohamed Slim et al.
VTC2014-Fall: 2014 IEEE 80th Vehicular Technology Conference, Proceedings. IEEE, 2014. 6966131 (IEEE Vehicular Technology Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Pilot power optimization for AF relaying using maximum likelihood channel estimation

AU - Wang, Kezhi

AU - Chen, Yunfei

AU - Alouini, Mohamed Slim

AU - Xu, Feng

PY - 2014/12/4

Y1 - 2014/12/4

N2 - Bit error rates (BERs) for amplify-and-forward (AF) relaying systems with two different pilot-symbol-aided channel estimation methods, disintegrated channel estimation (DCE) and cascaded channel estimation (CCE), are derived in Rayleigh fading channels. Based on these BERs, the pilot powers at the source and at the relay are optimized when their total transmitting powers are fixed. Numerical results show that the optimized system has a better performance than other conventional nonoptimized allocation systems. They also show that the optimal pilot power in variable gain is nearly the same as that in fixed gain for similar system settings.

AB - Bit error rates (BERs) for amplify-and-forward (AF) relaying systems with two different pilot-symbol-aided channel estimation methods, disintegrated channel estimation (DCE) and cascaded channel estimation (CCE), are derived in Rayleigh fading channels. Based on these BERs, the pilot powers at the source and at the relay are optimized when their total transmitting powers are fixed. Numerical results show that the optimized system has a better performance than other conventional nonoptimized allocation systems. They also show that the optimal pilot power in variable gain is nearly the same as that in fixed gain for similar system settings.

U2 - 10.1109/VTCFall.2014.6966131

DO - 10.1109/VTCFall.2014.6966131

M3 - Conference contribution

AN - SCOPUS:84919458814

T3 - IEEE Vehicular Technology Conference

BT - VTC2014-Fall

PB - IEEE

T2 - 80th IEEE Vehicular Technology Conference, VTC 2014-Fall

Y2 - 14 September 2014 through 17 September 2014

ER -

Pilot power optimization for AF relaying using maximum likelihood channel estimation

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