Opportunistic Cooperative Positioning in OFDMA Systems

Ziming HE; Yi MA; Rahim TAFAZOLLI

doi:10.1587/transfun.E95.A.1642

Opportunistic Cooperative Positioning in OFDMA Systems

Ziming HE, Yi MA, Rahim TAFAZOLLI

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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.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E95-A No.9 pp.1642-1645

Publication Date: 2012/09/01

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Online ISSN: 1745-1337

DOI: 10.1587/transfun.E95.A.1642

Type of Manuscript: LETTER

Category: Information Theory

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Ziming HE, Yi MA, Rahim TAFAZOLLI, "Opportunistic Cooperative Positioning in OFDMA Systems" in IEICE TRANSACTIONS on Fundamentals, vol. E95-A, no. 9, pp. 1642-1645, September 2012, doi: 10.1587/transfun.E95.A.1642.
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.
URL: https://globals.ieice.org/en_transactions/fundamentals/10.1587/transfun.E95.A.1642/_p

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@ARTICLE{e95-a_9_1642,
author={Ziming HE, Yi MA, Rahim TAFAZOLLI, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Opportunistic Cooperative Positioning in OFDMA Systems},
year={2012},
volume={E95-A},
number={9},
pages={1642-1645},
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.},
keywords={},
doi={10.1587/transfun.E95.A.1642},
ISSN={1745-1337},
month={September},}

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TY - JOUR
TI - Opportunistic Cooperative Positioning in OFDMA Systems
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1642
EP - 1645
AU - Ziming HE
AU - Yi MA
AU - Rahim TAFAZOLLI
PY - 2012
DO - 10.1587/transfun.E95.A.1642
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E95-A
IS - 9
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - September 2012
AB - 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.
ER -