DoA Estimation with Cell Searching for Mobile Relay Stations with Uniform Circular Array

Conference Paper · September 2009with4 Reads
DOI: 10.1109/PIMRC.2009.5450222 · Source: DBLP
Conference: Proceedings of the IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2009, 13-16 September 2009, Tokyo, Japan
Abstract
In this paper, a Direction-of-Arrival (DoA) estimation scheme with cell searching is proposed for a mobile relay station (MRS) with uniform circular array (UCA) at 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 Mobile WiMAX environment.
  • ...Each source is characterized by its frequency, for example it can be narrow- band [2] or wideband [3]. Due to this diversity, this field of research has attracted more interest due to its usefulness in many applications including radioastronomy [4] , geolocalization such as Global Positioning System (GPS) [5], localization of mobile stations [6], radar and sonar [7] in both civilian and military applications, underwater acous- tics [8], medical signal processing and seismology. Most of localization techniques exploit the space-time diversity , some methods are based on time delay, known as Time of Arrival (ToA) [1] . ...
Article
November 2010 · IEEE Transactions on Communications · Impact Factor: 1.99
    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... [Show full abstract]
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    December 2010
      In this paper, cell searching and DoA (Direction of Arrival) estimation methods are proposed for mobile relay stations with a uniform linear array in OFDM-based cellular systems. The proposed methods can improve the performance of cell searching and DoA estimation, even when there exist symbol timing offsets among the signals received from adjacent base stations and Doppler frequency shifts... [Show full abstract]
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      July 2008 · IEICE Transactions on Communications · Impact Factor: 0.23
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        May 2011
          In this paper, carrier frequency offset and 2-D AoA (Angle-of-Arrival) estimation methods are proposed for an OFDM-based MRS (Mobile Relay Station) with UCA (Uniform Circular Array). The proposed methods are performed by using the preamble symbol in downlink and can improve the performance of CFO estimation significantly, compared with the conventional method. The proposed methods can be... [Show full abstract]
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