Dimensionality reduction with automatic dimension assignment for distributed estimation

Jun Fang, Hongbin Li

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We consider distributed estimation of a random vector parameter by a wireless sensor network (WSN). To meet stringent power and bandwidth budgets in WSN, local data compression is performed at each sensor to reduce the number of messages sent to a fusion center (FC). Under the constraint of a given total number of messages, our problem is to jointly determine the number of messages sent by each senor (a.k.a. dimension assignment) and design the corresponding compression matrix. The problem is formulated as a constrained optimization problem that minimizes the estimation mean-square error (MSE) at the FC. We analyze the problem using a subspace projection technique, which yields an efficient iterative solution. Numerical results are presented to illustrate the effectiveness of the proposed algorithm.

Original languageEnglish (US)
Title of host publication2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
Pages2729-2732
Number of pages4
DOIs
StatePublished - Sep 16 2008
Event2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP - Las Vegas, NV, United States
Duration: Mar 31 2008Apr 4 2008

Other

Other2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
CountryUnited States
CityLas Vegas, NV
Period3/31/084/4/08

Fingerprint

Wireless sensor networks
Fusion reactions
Constrained optimization
Data compression
Mean square error
Bandwidth
Sensors

All Science Journal Classification (ASJC) codes

  • Software
  • Signal Processing
  • Electrical and Electronic Engineering

Cite this

Fang, J., & Li, H. (2008). Dimensionality reduction with automatic dimension assignment for distributed estimation. In 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP (pp. 2729-2732). [4518213] https://doi.org/10.1109/ICASSP.2008.4518213
Fang, Jun ; Li, Hongbin. / Dimensionality reduction with automatic dimension assignment for distributed estimation. 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP. 2008. pp. 2729-2732
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Fang, J & Li, H 2008, Dimensionality reduction with automatic dimension assignment for distributed estimation. in 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP., 4518213, pp. 2729-2732, 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP, Las Vegas, NV, United States, 3/31/08. https://doi.org/10.1109/ICASSP.2008.4518213

Dimensionality reduction with automatic dimension assignment for distributed estimation. / Fang, Jun; Li, Hongbin.

2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP. 2008. p. 2729-2732 4518213.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Fang J, Li H. Dimensionality reduction with automatic dimension assignment for distributed estimation. In 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP. 2008. p. 2729-2732. 4518213 https://doi.org/10.1109/ICASSP.2008.4518213