Multiple-access interference constrained source extraction in wireless sensor networks

Hong Bin Chen; Jiu Chao Feng; Chi Kong Tse

doi:10.1109/ISCAS.2009.5118299

Multiple-access interference constrained source extraction in wireless sensor networks

Hong Bin Chen, Jiu Chao Feng, Chi Kong Tse

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

We consider the scenario where each sensor in a sensor network observes an instantaneous linear mixture of multiple sources in a sensing field. A portion of sensors transmit their observations to a fusion center simultaneously, through channels with different gains. Due to the bandwidth constraint of links, the sensors' observations are quantized before transmission. A multiple-access interference (MAI) model is therefore adopted to measure the quality of the links under two cases. The fusion center uses a fast independent component analysis (Fast ICA) algorithm with pre-whitening to extract the sources, based on the received data from the transmitting sensors. The performance of source extraction is evaluated by numerical simulations. The results show that the second case is better regarding the impact of MAI on the performance.

Original language	English
Title of host publication	2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009
Pages	2461-2464
Number of pages	4
DOIs	https://doi.org/10.1109/ISCAS.2009.5118299
Publication status	Published - 26 Oct 2009
Event	2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009 - Taipei, Taiwan Duration: 24 May 2009 → 27 May 2009

Conference

Conference	2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009
Country/Territory	Taiwan
City	Taipei
Period	24/05/09 → 27/05/09

ASJC Scopus subject areas

Electrical and Electronic Engineering

More information

10.1109/ISCAS.2009.5118299

Cite this

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title = "Multiple-access interference constrained source extraction in wireless sensor networks",

abstract = "We consider the scenario where each sensor in a sensor network observes an instantaneous linear mixture of multiple sources in a sensing field. A portion of sensors transmit their observations to a fusion center simultaneously, through channels with different gains. Due to the bandwidth constraint of links, the sensors' observations are quantized before transmission. A multiple-access interference (MAI) model is therefore adopted to measure the quality of the links under two cases. The fusion center uses a fast independent component analysis (Fast ICA) algorithm with pre-whitening to extract the sources, based on the received data from the transmitting sensors. The performance of source extraction is evaluated by numerical simulations. The results show that the second case is better regarding the impact of MAI on the performance.",

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Multiple-access interference constrained source extraction in wireless sensor networks. / Chen, Hong Bin; Feng, Jiu Chao; Tse, Chi Kong.
2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009. 2009. p. 2461-2464 5118299.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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Multiple-access interference constrained source extraction in wireless sensor networks

Abstract

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