DocumentCode :
3592424
Title :
Speed estimation techniques in cellular systems: unified performance analysis
Author :
Abdi, Ali ; Zhang, Hong ; Tepedelenlioglu, Cihan
Author_Institution :
Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA
Volume :
3
fYear :
2003
Firstpage :
1522
Abstract :
Estimation of the mobile speed, or equivalently, the maximum Doppler frequency, is of importance in a variety of applications in wireless mobile communications. In this paper, a unified framework for the performance analysis of several major speed estimation techniques is presented, which allows a fair comparison between all the methods, analytically. Interestingly, it is proved that all these methods are equivalent, asymptotically, i.e., for large observation intervals. In addition, we have derived closed-from expressions for the bias and variance of a recently proposed covariance-based method. We have also introduced a new estimator which relies on the average number of maxima of the inphase component, and have calculated its variance, analytically. Our extensive performance analysis, supported by Monte Carlo simulations, have revealed that depending on the channel conditions, one needs to use a crossing- or a covariance-based technique, to achieve the desired estimation accuracy over a large range of mobile speeds.
Keywords :
Monte Carlo methods; cellular radio; covariance analysis; Doppler frequency; Monte Carlo simulation; cellular system; covariance-based method; speed estimation technique; wireless mobile communication; Adaptive control; Analysis of variance; Equations; Frequency estimation; Mobile communication; Performance analysis; Power control; Programmable control; State estimation; Wireless communication;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th
ISSN :
1090-3038
Print_ISBN :
0-7803-7954-3
Type :
conf
DOI :
10.1109/VETECF.2003.1285279
Filename :
1285279
Link To Document :
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