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International Journal of Wireless and Microwave Technologies(IJWMT)

ISSN: 2076-1449 (Print), ISSN: 2076-9539 (Online)

Published By: MECS Press

IJWMT Vol.1, No.4, Aug. 2011

A New Ranging Technique for IEEE 802.16e Uplink

Full Text (PDF, 178KB), PP.19-26


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Author(s)

Wang Shi, Wang Yingchun, Guan Jianxin

Index Terms

802.16e; Ranging; Uplink

Abstract

Aiming at the shortcomings of the traditional ranging algorithm, this paper proposes a new ranging technique for 802.16e uplink in the frequency domain. The ranging technique eliminates the effect of the timing offset by computing the frequency difference of adjacent sub-carriers in the ranging channel, which reduces the search space from two dimensions to one dimension. When there is slot, the ranging code can be detected by adopting a threshold. The ranging technique is implemented through one-dimension search in the frequency domain, and consequently the complexity can be reduced and without losing the performance of timing estimation. The simulation results show the good ranging performance of this technique.

Cite This Paper

Wang Shi, Wang Yingchun, Guan Jianxin,"A New Ranging Technique for IEEE 802.16e Uplink", IJWMT, vol.1, no.4, pp.19-26, 2011.

Reference

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[2]Doo Hwan Lee, Hui Won Je, and Kwang Bok Lee. “Differential Detection Scheme with Combining Multiple FFT Blocks for OFDMA Ranging of IEEE 802.16e”.

[3]Altera, Application Note 430, “WiMAX OFDMA Ranging”.

[4]Cory S. Modlin, and Tarik Muharemovic, Patent, US 2007/0058524 A1, “Orthogonal Frequency Division Multiplexing Access (OFDMA) Ranging”.

[5]Jerry Krinock, et al, “Comments on OFDMA Ranging Scheme Described in IEEE 802.16ab-01/01r1,”IEEE 802.16abc-01//24, August 2001.