NDLI: Analysis of proportional fair scheduling in OFDMA systems with delay QoS constraints

Content Provider	IEEE Xplore Digital Library
Author	Seongwoo Ahn Seokwon Lee Kyungho Kim Daesik Hong
Copyright Year	2010
Description	Author affiliation: Telecommunication R&D Center, Samsung Electronics Co., LTD., 416, Maetan-Dong, Youngtong-Gu, Suwon-City, Gyeonggi-Do, Korea 442-600 (Seongwoo Ahn; Kyungho Kim) \|\| Information and Telecommunication Lab.(B715), Dept. of Electrical and Electronic Engin., Yonsei Univ., 134 Shinchon-dong Seodaemun-gu, Seoul, Korea, 120-749 (Seokwon Lee; Daesik Hong)
Abstract	We present an analytical model of throughput-delay tradeoff of the proportional fair scheduling of OFDMA Systems in context of user multiplexing. For this purpose, we propose simple and efficient resource allocation schemes which are based on 2-dimensional resource partitioning in frequency and time domain. Basically, frequency-domain partitioning is determined by degree of frequency diversity and time-domain partitioning is determined by degree of multiplexing which is number of users to be served in a sub-channel of a frame. Our approach is aimed at maximizing the delay constrained throughput by choosing the appropriate degree of multiplexing for a given degree of frequency diversity. We investigate the effect of degree-of-multiplexing and frequency diversity on delay QoS performance of OFDMA system by analyzing the effective capacity, and then develop an approach to finding the optimal degree of multiplexing by the asymptotic approximation.
Starting Page	255
Ending Page	260
File Size	447593
Page Count	6
File Format	PDF
ISBN	9781424481286
e-ISBN	9781424481293
e-ISBN	9781424481279
DOI	10.1109/APCC.2010.5679776
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-10-31
Publisher Place	New Zealand
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Quality of service Delay Throughput Frequency diversity Multiplexing Approximation methods Manganese
Content Type	Text
Resource Type	Article

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