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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2006, Vol. 7 Issue (6 ): 17-    DOI: 10.1631/jzus.2006.A1046
    
Adaptive modulation MIMO system based on minimizing transmission power
WANG Zhi-ying, HE Chen
Department of Electronics Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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Abstract  Adaptive modulation (AM) is an effective technique to approach the theoretical bound of multi-input and multi-output (MIMO) channel. In most previous studies, the AM parameters were obtained by maximizing the transmission rate for a given total transmit power. In this paper, a novel AM-MIMO algorithm is presented, which is based on minimizing total transmit power when the link’s QoS requirements are given. By taking the QoS requirements into account directly, the proposed algorithm not only makes the system more flexible, but also makes the cross layer design of wireless network easier. At last, the numerical results of the proposed scheme are presented.

Key words： MIMO system      Adaptive modulation (AM)      QoS     
Received: 22 June 2005     
CLC:  TN919.72  
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WANG Zhi-ying, HE Chen. Adaptive modulation MIMO system based on minimizing transmission power. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2006, 7(6 ): 17-.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2006.A1046     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2006/V7/I6 /17

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