3rd International ICST Conference on Broadband Communications, Networks, and Systems

Research Article

Power control for interference mitigation between coexisting UWB systems

  • @INPROCEEDINGS{10.1109/BROADNETS.2006.4374365,
        author={Yongjing Zhang and Haitao Wu and Qian Zhang and Ping Zhang},
        title={Power control for interference mitigation between coexisting UWB systems},
        proceedings={3rd International ICST Conference on Broadband Communications, Networks, and Systems},
        publisher={IEEE},
        proceedings_a={BROADNETS},
        year={2006},
        month={10},
        keywords={},
        doi={10.1109/BROADNETS.2006.4374365}
    }
    
  • Yongjing Zhang
    Haitao Wu
    Qian Zhang
    Ping Zhang
    Year: 2006
    Power control for interference mitigation between coexisting UWB systems
    BROADNETS
    IEEE
    DOI: 10.1109/BROADNETS.2006.4374365
Yongjing Zhang1,*, Haitao Wu2,*, Qian Zhang3,*, Ping Zhang1,*
  • 1: Beijing Univ. of Posts and Telecommun., China
  • 2: Microsoft Research Asia, Beijing, China
  • 3: Hong Kong Univ. of Science and Technology
*Contact email: yongjing.zhang@gmail.com, hwu@microsoft.com, qianzh@cs.ust.hk, pzhang@bupt.edu.cn

Abstract

In this paper, we investigate the coexistence issue of two type of ultra-wideband (UWB) systems under IEEE 802.15.3a, i.e. Direct-Sequence UWB and MultiBand-Orthogonal Frequency Division Multiplexing UWB. The mutual interference of such coexistence scenarios is analyzed by physical layer Monte Carlo simulations. We observe severe and asymmetric performance degradation due to the mutual interference between the two systems. Therefore, we propose the goodput-oriented utility-based transmit power control (GUTPC) algorithm to improve the performance. The feasible condition and the convergence property of GUTPC are investigated, and the choice of the coefficients is discussed for fairness and efficiency. Numerical results demonstrate that GUTPC improves the goodput of the coexisting systems effectively and fairly.