NDLI: Adaptive Modulation Technique with Partial CQI for Multiuser OFDMA Systems

Content Provider	IEEE Xplore Digital Library
Author	Jung Hyoung Kwon Duho Rhee Il Mu Byun Younghoon Whang Kwang Soon Kim
Copyright Year	2006
Description	Author affiliation: Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul (Jung Hyoung Kwon; Duho Rhee; Il Mu Byun; Younghoon Whang; Kwang Soon Kim)
Abstract	In this paper, we present a new scheme for sub-band allocation in multiuser downlink orthogonal frequency division multiple access (OFDMA) systems with partial channel quality information (CQI). Our objective is to maximize the total throughput of the system under the constraints of transmit power. In previous methods, each user in a cell transmits CQI of its all sub-bands to the base station, which requires extremely high feedback overhead. Thus, we propose an efficient sub-band allocation algorithm in which each user transmits partial CQI and one additional information to reduce the amount of feedback. Simulation results show that we can greatly reduce the amount of feedback than full feedback system
Starting Page	1283
Ending Page	1286
File Size	136207
Page Count	4
File Format	PDF
ISBN	8955191294
DOI	10.1109/ICACT.2006.206205
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-02-20
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	ETRI
Subject Keyword	Feedback Throughput Radio spectrum management Fading Downlink Base stations Wireless communication Bit error rate Signal to noise ratio Information technology reduced feedback multiuser downlink OFDMA sub-band allocation partial CQI
Content Type	Text
Resource Type	Article

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