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Cell Searching and DoA Estimation Methods for a Mobile Relay Station with a Uniform Circular Array  

Ko, Yo-Han (School of Electrical & Electronic Engineering, Chung-Ang University)
Kim, Yeong-Jun (School of Electrical & Electronic Engineering, Chung-Ang University)
Yoo, Hyun-Il (School of Electrical & Electronic Engineering, Chung-Ang University)
Cho, Yong-Soo (School of Electrical & Electronic Engineering, Chung-Ang University)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.9A, 2009 , pp. 664-672 More about this Journal
Abstract
In this paper, joint methods of cell searching and Direction-of-Arrival (DoA) estimation for a mobile relay station with a uniform circular array are proposed. The proposed joint estimation method for the mobile relay station is robust even when there exist symbol timing offsets between the signals received from adjacent base stations. Also, the proposed joint estimation method can reduce computational complexity and processing time, compared with the case where cell searching and DoA estimation are performed separately. Performances of the proposed method are evaluated by computer simulation under Mobile WiMAX environment.
Keywords
Mobile Relay Station; Beamforming; Uniform Circular Array; Cell Searching; DoA Estimation;
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