Multipath propagation of radio signal introduces frequency selectivity. OFDMA systems greatly suffer from frequency selective fading. It is an important limit factor of performance of OFDMA systems, especially in subband based multiple user access scehems. In this paper, we propose the method of subband selection and handover to improve the system performance over the frequency selective channel. Two subband selection algorithms are presented to accurately select the subband with high channel gain and avoid the channel notch. The random access procedure employing subband selection is presented as an example. The effects of the subband selection are also given. The selection effectively improves the performances of frame synchronization, frequency synchronization, channel estimation, and bit error rate (BER). The investigations show that the proposed scheme is promising to reliable communications over frequency selective fading channel.
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Jianfeng QIANG, Hiroshi HARADA, Hiromitsu WAKANA, Ping ZHANG, "Subband Selection and Handover of OFDMA System over Frequency Selective Channel" in IEICE TRANSACTIONS on Communications,
vol. E88-B, no. 4, pp. 1718-1724, April 2005, doi: 10.1093/ietcom/e88-b.4.1718.
Abstract: Multipath propagation of radio signal introduces frequency selectivity. OFDMA systems greatly suffer from frequency selective fading. It is an important limit factor of performance of OFDMA systems, especially in subband based multiple user access scehems. In this paper, we propose the method of subband selection and handover to improve the system performance over the frequency selective channel. Two subband selection algorithms are presented to accurately select the subband with high channel gain and avoid the channel notch. The random access procedure employing subband selection is presented as an example. The effects of the subband selection are also given. The selection effectively improves the performances of frame synchronization, frequency synchronization, channel estimation, and bit error rate (BER). The investigations show that the proposed scheme is promising to reliable communications over frequency selective fading channel.
URL: https://global.ieice.org/en_transactions/communications/10.1093/ietcom/e88-b.4.1718/_p
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@ARTICLE{e88-b_4_1718,
author={Jianfeng QIANG, Hiroshi HARADA, Hiromitsu WAKANA, Ping ZHANG, },
journal={IEICE TRANSACTIONS on Communications},
title={Subband Selection and Handover of OFDMA System over Frequency Selective Channel},
year={2005},
volume={E88-B},
number={4},
pages={1718-1724},
abstract={Multipath propagation of radio signal introduces frequency selectivity. OFDMA systems greatly suffer from frequency selective fading. It is an important limit factor of performance of OFDMA systems, especially in subband based multiple user access scehems. In this paper, we propose the method of subband selection and handover to improve the system performance over the frequency selective channel. Two subband selection algorithms are presented to accurately select the subband with high channel gain and avoid the channel notch. The random access procedure employing subband selection is presented as an example. The effects of the subband selection are also given. The selection effectively improves the performances of frame synchronization, frequency synchronization, channel estimation, and bit error rate (BER). The investigations show that the proposed scheme is promising to reliable communications over frequency selective fading channel.},
keywords={},
doi={10.1093/ietcom/e88-b.4.1718},
ISSN={},
month={April},}
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TY - JOUR
TI - Subband Selection and Handover of OFDMA System over Frequency Selective Channel
T2 - IEICE TRANSACTIONS on Communications
SP - 1718
EP - 1724
AU - Jianfeng QIANG
AU - Hiroshi HARADA
AU - Hiromitsu WAKANA
AU - Ping ZHANG
PY - 2005
DO - 10.1093/ietcom/e88-b.4.1718
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E88-B
IS - 4
JA - IEICE TRANSACTIONS on Communications
Y1 - April 2005
AB - Multipath propagation of radio signal introduces frequency selectivity. OFDMA systems greatly suffer from frequency selective fading. It is an important limit factor of performance of OFDMA systems, especially in subband based multiple user access scehems. In this paper, we propose the method of subband selection and handover to improve the system performance over the frequency selective channel. Two subband selection algorithms are presented to accurately select the subband with high channel gain and avoid the channel notch. The random access procedure employing subband selection is presented as an example. The effects of the subband selection are also given. The selection effectively improves the performances of frame synchronization, frequency synchronization, channel estimation, and bit error rate (BER). The investigations show that the proposed scheme is promising to reliable communications over frequency selective fading channel.
ER -