Journal of Shanghai University（Natural Science Edition） ›› 2008, Vol. 14 ›› Issue (6): 564-567 .
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ZHENG Xiang, CHEN Jian, JIN Yan-liang
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Abstract:
An improved algorithm of random access channel(RACH)in broadband wireless access systems based on IEEE 802.16e-OFDMA is proposed. By combining the ranging signal in the time domain, the algorithm enhances the SNR of correlation in the frequency domain, and is more robust in the ranging user detection and delay estimation at low SNR. Simulation results show that the proposed algorithm improves the performance of ranging user detection and delay estimation at low SNR, and enhances the performance of edge users.
Key words: random access channel(RACH), ranging, broadband wireless access system
CLC Number:
TN911
ZHENG Xiang;CHEN Jian;JIN Yan-liang. Improved Algorithm for Uplink Timing in Broadband Wireless Access Systems[J]. Journal of Shanghai University（Natural Science Edition）, 2008, 14(6): 564-567 .
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https://www.journal.shu.edu.cn/EN/Y2008/V14/I6/564
