Universiti Teknologi Malaysia Institutional Repository

Least-square collaborative beamforming linear array for steering capability in green wireless sensor networks

Nik Abd. Malik, N. and Esa, M. and Latiff, N. M. A. (2016) Least-square collaborative beamforming linear array for steering capability in green wireless sensor networks. Journal of Electronic Science and Technology, 14 (2). pp. 118-125. ISSN 1674-862X

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Abstract

This paper presents a collaborative beamforming (CB) technique to organize the sensor node's location in a linear array for green wireless sensor network (WSN) applications. In this method, only selected clusters and active CB nodes are needed each time to perform CB in WSNs. The proposed least-square linear array (LSLA) manages to select nodes to perform as a linear antenna array (LAA), which is similar to and as outstanding as the conventional uniform linear array (ULA). The LSLA technique is also able to solve positioning error problems that exist in the random nodes deployment. The beampattern fluctuations have been analyzed due to the random positions of sensor nodes. Performances in terms of normalized power gains are given. It is demonstrated by a simulation that the proposed technique gives similar performances to the conventional ULA and at the same time exhibits lower complexity.

Item Type:Article
Uncontrolled Keywords:array antenna, beamforming, signal processing
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:72406
Deposited By: Haliza Zainal
Deposited On:27 Nov 2017 02:35
Last Modified:27 Nov 2017 02:35

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