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초록
We present an implementation of a mobile-WiMAX (m-WiMAX) base station (BS) that supports smart antenna (SA) functionality. To implement the m-WiMAX SA BS, we must address a number of key issues in baseband signal processing related to symbol-timing acquisition, the beamforming scheme, and accurate calibration. We propose appropriate solutions and implement an m-WiMAX SA BS accordingly. Experimental tests were performed to verify the validity of the solutions. Results showed a 3.5-time (5.5 dB) link-budget enhancement on the uplink compared to a single antenna system. In addition, the experimental results were consistent with the results of the computer simulation.
키워드
Base stations; Mobile antennas; Mobile telecommunication systems; Signal processing; Simulated annealing; Smart antennas; Interoperability; Base-station; Baseband signal processing; Experimental tests; Mobile wimax; Single antenna systems; Smart antenna base stations; Timing acquisitions
- 제목
- Implementation of a Smart Antenna Base Station for Mobile WiMAX Based on OFDMA
- 저자
- Hyeon, Seungheon; Lee, Changhoon; Shin, Chang-eui; Choi, Seungwon
- 발행일
- 2009-03
- 유형
- Article
- 페이지
- 1 ~ 9