Title :
Power control for interference mitigation between coexisting UWB systems
Author :
Zhang, Yongjing ; Wu, Haitao ; Zhang, Qian ; Zhang, Ping
Author_Institution :
Beijing Univ. of Posts & Telecommun., Beijing
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.
Keywords :
IEEE standards; Monte Carlo methods; OFDM modulation; power control; telecommunication control; ultra wideband technology; IEEE 802.15.3a; Monte Carlo simulations; coexisting UWB systems; direct-sequence UWB; goodput-oriented utility-based transmit power control algorithm; interference mitigation; multiband-orthogonal frequency division multiplexing UWB; ultra-wideband systems; Convergence; Degradation; Frequency diversity; Interference; OFDM; Physical layer; Power control; Pricing; Spread spectrum communication; Ultra wideband technology;
Conference_Titel :
Broadband Communications, Networks and Systems, 2006. BROADNETS 2006. 3rd International Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-0425-4
Electronic_ISBN :
978-1-4244-0425-4
DOI :
10.1109/BROADNETS.2006.4374365
