WiBro 다운링크 환경에서 여러 가지 MIMO 기법의 성능 및 연산량에 대한 비교 연구
A comparison study of the performance and computational complexity of various MIMO technoques in WiBro downlink system
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초록
Combining OFDMA with MIMO is the key technology for the 4G mobile communication. OFDMA can relieve inhernet difficulties of high-speed transmission. MIMO technology can be largely categorized into two techniques: ibe us STC fir duversity gain and the other is SM for high frequency efficiency, In this paper, we deouct various MIMO techniques of two tranmit antenna and compare the computational complexity of decoding process for the techniques. Then, we analysis the performance of the techniques in the WiBro downlink environment based on OFDMA. We perfer ML algorithm which is the optimum performance and ZF algorithm of least computational complexity for SM detection.
Abstract
Combining OFDMA with MIMO is the key technology for the 4G mobile communication. OFDMA can relieve inhernet difficulties of high-speed transmission. MIMO technology can be largely categorized into two techniques: ibe us STC fir duversity gain and the other is SM for high frequency efficiency, In this paper, we deouct various MIMO techniques of two tranmit antenna and compare the computational complexity of decoding process for the techniques. Then, we analysis the performance of the techniques in the WiBro downlink environment based on OFDMA. We perfer ML algorithm which is the optimum performance and ZF algorithm of least computational complexity for SM detection.
참고문헌 (6)
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- Jingming-Wang, "A comparative study of MIMO detection algorithms for wideband spatial multiplexing systems", 2005 IEEE Wireless Communications and Networking Conference, 통권 : 1, pp.408~413 (2005)
- S. M. Alamouti, "A Simple Transmit Diversity Technique for Wireless Communications", IEEE Journal on Selected Areas in Communications, 16(8), pp.1451~1458 (1998)
- "IEEE P802.16 Rev2", D2, DRAFT Standard for Local and metropolitan area networks, Air Interface for Broadband Wireless Access Systems, 2007, pp.910~914
- Richard Van Nee, "OFDM For Wireless Multimedia Communications", pp.47~48 (2000), Artech House Publishers
- A. F. Naguib, "Adaptive antennas for CDMA wireless networks", 박사, pp.1996