In this paper, a new algorithm is proposed for estimating mobile speed of cellular systems over frequency selective Rician fading channels. Theoretical analysis is first derived and practical algorithm is proposed based on the analytical results. The algorithm employs a modified auto-covariance of received signal power to estimate the speed of mobiles. The algorithm is based on the received signals which contain unknown transmitted data, unknown frequency selective multipaths including line-of-sight(LOS) component, and random receiver noise. The algorithm works very well for frequency selective Rician fading channels with large ranges of Rice factor and angle of arrival of the LOS component. Simulation results indicate that the new algorithm is very reliable and effective to distinguish slow speed and fast speed mobiles. The algorithm is computationally efficient. It only requires simple arithmetic operations such as multiplications, additions and subtractions.
Y. R. Zheng and C. Xiao, "Mobile Speed Classification for Cellular Systems Over Frequency Selective Rician Fading Channels," Proceedings of the IEEE Global Telecommunications Conference, 2006. GLOBECOM'06, Institute of Electrical and Electronics Engineers (IEEE), Jan 2006.
The definitive version is available at http://dx.doi.org/10.1109/GLOCOM.2006.874
IEEE Global Telecommunications Conference, 2006. GLOBECOM'06
Electrical and Computer Engineering
National Science Foundation (U.S.)
University of Missouri Research Board
Keywords and Phrases
LOS Component; Rice Factor; Rician Fading Channels; Cellular Systems; Cellular telephone systems
Article - Conference proceedings
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