Journal of Communications and Networks

  • 제5권2호
  • /
  • Pages.167-173
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  • 2003
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  • 1229-2370(pISSN)
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  • 1976-5541(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
권호 표지

Receiver Techniques for Ultra-wide-band Multiuser Systems over Fading Multipath Channels

  • Zhou, Xiaobo (Dept. of Electrical Engineering, Texas A&M University) ;
  • Wang, Xiaodong (Department of Electrical Engineering, Columbia University)
  • 발행 : 2003.06.01
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초록

We treat the problem of channel estimation and interference cancellation in multiuser ultra-wide-band (UWB) communication systems over multipath fading channels. The UWB system under consideration employs a random time-hopping impulse radio format. We develop a channel estimation method based on linear weighted algorithm. An iterative channel estimation and interference cancellation scheme is proposed to successively improve the receiver performance. We also consider systems employing multiple transmit and/or receive antennas. For systems with multiple receive antennas, we develop a diversity receiver for the wellseparated antennas. For systems with multiple transmit antennas, we propose to make use of Alamouti’s space-time transmission scheme, and develop the corresponding channel estimation and interference cancellation receiver techniques. Simulation results are provided to demonstrate the performance of various UWB receiver techniques developed in this paper.

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참고문헌

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