Distributed estimation over fading macs with multiple antennas at the fusion center

Anthony D. Smith; Mahesh K. Banavar; Cihan Tepedelenlioglu; Andreas Spanias

doi:10.1109/ACSSC.2009.5469849

Distributed estimation over fading macs with multiple antennas at the fusion center

Anthony D. Smith, Mahesh K. Banavar, Cihan Tepedelenlioglu, Andreas Spanias

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

13 Scopus citations

Abstract

We consider a distributed estimation problem over fading multiple-access channels. Several sensors transmit a parameter to a fusion center using an amplify-and-forward scheme. The fusion center has multiple antennas and uses the transmissions from the sensors to estimate the parameter. In this paper we will assume that the sensors have full channel state information and formulate an optimization problem that needs to be solved to select the best sensor gains. We also propose bounds on the performance and two practical methods that can be implemented in this scenario. By comparing the performance, it is shown that though there is benefit in having multiple antennas at the fusion center, when full channel information is available at the sensors, the gain in performance is at most a factor of 2.

Original language	English (US)
Title of host publication	Conference Record - 43rd Asilomar Conference on Signals, Systems and Computers
Pages	424-428
Number of pages	5
DOIs	https://doi.org/10.1109/ACSSC.2009.5469849
State	Published - 2009
Event	43rd Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, United States Duration: Nov 1 2009 → Nov 4 2009

Publication series

Name	Conference Record - Asilomar Conference on Signals, Systems and Computers
ISSN (Print)	1058-6393

Other

Other	43rd Asilomar Conference on Signals, Systems and Computers
Country/Territory	United States
City	Pacific Grove, CA
Period	11/1/09 → 11/4/09

Keywords

Asymptotic analysis
Asymptotic variance
Distributed estimation
Rayleigh fading
Wireless sensor networks

ASJC Scopus subject areas

Signal Processing
Computer Networks and Communications

Access to Document

10.1109/ACSSC.2009.5469849

Cite this

Smith, A. D., Banavar, M. K., Tepedelenlioglu, C., & Spanias, A. (2009). Distributed estimation over fading macs with multiple antennas at the fusion center. In Conference Record - 43rd Asilomar Conference on Signals, Systems and Computers (pp. 424-428). Article 5469849 (Conference Record - Asilomar Conference on Signals, Systems and Computers). https://doi.org/10.1109/ACSSC.2009.5469849

Distributed estimation over fading macs with multiple antennas at the fusion center. / Smith, Anthony D.; Banavar, Mahesh K.; Tepedelenlioglu, Cihan et al.
Conference Record - 43rd Asilomar Conference on Signals, Systems and Computers. 2009. p. 424-428 5469849 (Conference Record - Asilomar Conference on Signals, Systems and Computers).

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

Smith, AD, Banavar, MK, Tepedelenlioglu, C & Spanias, A 2009, Distributed estimation over fading macs with multiple antennas at the fusion center. in Conference Record - 43rd Asilomar Conference on Signals, Systems and Computers., 5469849, Conference Record - Asilomar Conference on Signals, Systems and Computers, pp. 424-428, 43rd Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, United States, 11/1/09. https://doi.org/10.1109/ACSSC.2009.5469849

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abstract = "We consider a distributed estimation problem over fading multiple-access channels. Several sensors transmit a parameter to a fusion center using an amplify-and-forward scheme. The fusion center has multiple antennas and uses the transmissions from the sensors to estimate the parameter. In this paper we will assume that the sensors have full channel state information and formulate an optimization problem that needs to be solved to select the best sensor gains. We also propose bounds on the performance and two practical methods that can be implemented in this scenario. By comparing the performance, it is shown that though there is benefit in having multiple antennas at the fusion center, when full channel information is available at the sensors, the gain in performance is at most a factor of 2.",

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AB - We consider a distributed estimation problem over fading multiple-access channels. Several sensors transmit a parameter to a fusion center using an amplify-and-forward scheme. The fusion center has multiple antennas and uses the transmissions from the sensors to estimate the parameter. In this paper we will assume that the sensors have full channel state information and formulate an optimization problem that needs to be solved to select the best sensor gains. We also propose bounds on the performance and two practical methods that can be implemented in this scenario. By comparing the performance, it is shown that though there is benefit in having multiple antennas at the fusion center, when full channel information is available at the sensors, the gain in performance is at most a factor of 2.

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KW - Asymptotic variance

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Distributed estimation over fading macs with multiple antennas at the fusion center

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Keywords

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