2-D DoA estimation with cell searching for a mobile relay station with uniform circular array

Authors:
Yo Han Ko;Yeung Jun Kim;Hyun Il Yoo;Won Young Yang;Yong Soo Cho
Affiliations:
School of Electrical and Electronics Engineering, College of Engineering, Chung-Ang University, Seoul, Korea;School of Electrical and Electronics Engineering, College of Engineering, Chung-Ang University, Seoul, Korea;School of Electrical and Electronics Engineering, College of Engineering, Chung-Ang University, Seoul, Korea;School of Electrical and Electronics Engineering, College of Engineering, Chung-Ang University, Seoul, Korea;School of Electrical and Electronics Engineering, College of Engineering, Chung-Ang University, Seoul, Korea
Venue:
IEEE Transactions on Communications
Year:
2010

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Abstract

In this letter, a 2-D Direction-of-Arrival (DoA) estimation scheme with cell searching is proposed for a mobile relay station (MRS) with uniform circular array (UCA) at a handover region. The proposed scheme of cell searching and DoA estimation for the MRS with UCA is robust even when there exist symbol timing offsets (STOs). Compared with the previous scheme, the proposed scheme can reduce computational complexity and processing time for cell searching and DoA estimation. Simulation results are included to verify the performance of the proposed scheme under a mobile WiMAX environment.