Radiolocation in CDMA Cellular System Based on Joint Angle and Delay Estimation |
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Authors: | Gu Zhenghui Gunawan Erry |
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Affiliation: | (1) School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore |
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Abstract: | This paper considers the problem of wireless location in code-divisionmultiple-access (CDMA)cellular system. Through the method of jointly estimating angle of arrival(AOA) and time ofarrival (TOA), a novel scheme is proposed for radiolocation in multipathenvironment, especiallywhen line-of-sight (LOS) path is not available to every base station involvedin location servicefor a mobile subscriber. The Cramer-Rao bound (CRB) is derived for the jointestimator. Based onsimulation results, the accuracy of the proposed wireless location scheme inCDMA system is assessed. |
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Keywords: | CDMA radiolocation joint angle and delay estimation non-line of sight |
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