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Opportunistic Cooperative Positioning in OFDMA Systems

He, Z, Ma, Y and Tafazolli, R (2012) Opportunistic Cooperative Positioning in OFDMA Systems IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E9 (9). pp. 1642-1645.

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Abstract

This letter presents a novel opportunistic cooperative positioning approach for orthogonal frequency-division multiple access (OFDMA) systems. The basic idea is to allow idle mobile terminals (MTs) opportunistically estimating the arrival timing of the training sequences for uplink synchronization from active MTs. The major advantage of the proposed approach over state-of-the-arts is that the positioning-related measurements among MTs are performed without the paid of training overhead. Moreover, Cramer-Rao lower bound (CRLB) is utilized to derive the positioning accuracy limit of the proposed approach, and the numerical results show that the proposed approach can improve the accuracy of non-cooperative approaches with the a-priori stochastic knowledge of clock bias among idle MTs.

Item Type: Article
Authors :
NameEmailORCID
He, ZUNSPECIFIEDUNSPECIFIED
Ma, Yy.ma@surrey.ac.ukUNSPECIFIED
Tafazolli, Rr.tafazolli@surrey.ac.ukUNSPECIFIED
Date : 1 September 2012
Identification Number : https://doi.org/10.1587/transfun.E95.A.1642
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:35
Last Modified : 17 May 2017 15:04
URI: http://epubs.surrey.ac.uk/id/eprint/835902

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