Efficient Adaptive Transmission Technique for Coded Multiuser OFDMA Systems

Duho RHEE; Joong Hyung KWON; Ilmu BYUN; Kwang Soon KIM

doi:10.1093/ietcom/e90-b.8.2168

Efficient Adaptive Transmission Technique for Coded Multiuser OFDMA Systems

Duho RHEE, Joong Hyung KWON, Ilmu BYUN, Kwang Soon KIM

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In previous literature on adaptive transmission in multiuser OFDMA systems, only uncoded case or capacity (coded with infinite length of codeword) has been considered. In this paper, an adaptive transmission algorithm for coded OFDMA systems with practical codeword lengths is investigated. Also, in order to keep the feedback overhead within a practical range, a two-step partial CQI scheme is adopted, which has both better performance and reduced feedback overhead compared to conventional partial CQI schemes. By allowing a long codeword block across all allocated sub-bands with appropriate power and modulation order allocation rather than using short codeword blocks to each sub-band, high coding gain can be obtained, which leads to performance improvement.

Publication: IEICE TRANSACTIONS on Communications Vol.E90-B No.8 pp.2168-2171

Publication Date: 2007/08/01

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Online ISSN: 1745-1345

DOI: 10.1093/ietcom/e90-b.8.2168

Type of Manuscript: LETTER

Category: Wireless Communication Technologies

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Duho RHEE, Joong Hyung KWON, Ilmu BYUN, Kwang Soon KIM, "Efficient Adaptive Transmission Technique for Coded Multiuser OFDMA Systems" in IEICE TRANSACTIONS on Communications, vol. E90-B, no. 8, pp. 2168-2171, August 2007, doi: 10.1093/ietcom/e90-b.8.2168.
Abstract: In previous literature on adaptive transmission in multiuser OFDMA systems, only uncoded case or capacity (coded with infinite length of codeword) has been considered. In this paper, an adaptive transmission algorithm for coded OFDMA systems with practical codeword lengths is investigated. Also, in order to keep the feedback overhead within a practical range, a two-step partial CQI scheme is adopted, which has both better performance and reduced feedback overhead compared to conventional partial CQI schemes. By allowing a long codeword block across all allocated sub-bands with appropriate power and modulation order allocation rather than using short codeword blocks to each sub-band, high coding gain can be obtained, which leads to performance improvement.
URL: https://globals.ieice.org/en_transactions/communications/10.1093/ietcom/e90-b.8.2168/_p

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@ARTICLE{e90-b_8_2168,
author={Duho RHEE, Joong Hyung KWON, Ilmu BYUN, Kwang Soon KIM, },
journal={IEICE TRANSACTIONS on Communications},
title={Efficient Adaptive Transmission Technique for Coded Multiuser OFDMA Systems},
year={2007},
volume={E90-B},
number={8},
pages={2168-2171},
abstract={In previous literature on adaptive transmission in multiuser OFDMA systems, only uncoded case or capacity (coded with infinite length of codeword) has been considered. In this paper, an adaptive transmission algorithm for coded OFDMA systems with practical codeword lengths is investigated. Also, in order to keep the feedback overhead within a practical range, a two-step partial CQI scheme is adopted, which has both better performance and reduced feedback overhead compared to conventional partial CQI schemes. By allowing a long codeword block across all allocated sub-bands with appropriate power and modulation order allocation rather than using short codeword blocks to each sub-band, high coding gain can be obtained, which leads to performance improvement.},
keywords={},
doi={10.1093/ietcom/e90-b.8.2168},
ISSN={1745-1345},
month={August},}

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TY - JOUR
TI - Efficient Adaptive Transmission Technique for Coded Multiuser OFDMA Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 2168
EP - 2171
AU - Duho RHEE
AU - Joong Hyung KWON
AU - Ilmu BYUN
AU - Kwang Soon KIM
PY - 2007
DO - 10.1093/ietcom/e90-b.8.2168
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E90-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2007
AB - In previous literature on adaptive transmission in multiuser OFDMA systems, only uncoded case or capacity (coded with infinite length of codeword) has been considered. In this paper, an adaptive transmission algorithm for coded OFDMA systems with practical codeword lengths is investigated. Also, in order to keep the feedback overhead within a practical range, a two-step partial CQI scheme is adopted, which has both better performance and reduced feedback overhead compared to conventional partial CQI schemes. By allowing a long codeword block across all allocated sub-bands with appropriate power and modulation order allocation rather than using short codeword blocks to each sub-band, high coding gain can be obtained, which leads to performance improvement.
ER -