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

Seongwoo Ahn; Seokwon Lee; Kyungho Kim; Daesik Hong

doi:10.1109/APCC.2010.5679776

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

Seongwoo Ahn, Seokwon Lee, Kyungho Kim, Daesik Hong

Department of Electrical and Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

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.

Original language	English
Title of host publication	2010 16th Asia-Pacific Conference on Communications, APCC 2010
Pages	255-260
Number of pages	6
DOIs	https://doi.org/10.1109/APCC.2010.5679776
Publication status	Published - 2010
Event	2010 16th Asia-Pacific Conference on Communications, APCC 2010 - Auckland, New Zealand Duration: 2010 Oct 31 → 2010 Nov 3

Publication series

Name	2010 16th Asia-Pacific Conference on Communications, APCC 2010

Other

Other	2010 16th Asia-Pacific Conference on Communications, APCC 2010
Country	New Zealand
City	Auckland
Period	10/10/31 → 10/11/3

All Science Journal Classification (ASJC) codes

Computer Networks and Communications

Access to Document

10.1109/APCC.2010.5679776

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Cite this

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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.",

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Ahn, S, Lee, S, Kim, K & Hong, D 2010, Analysis of proportional fair scheduling in OFDMA systems with delay QoS constraints. in 2010 16th Asia-Pacific Conference on Communications, APCC 2010., 5679776, 2010 16th Asia-Pacific Conference on Communications, APCC 2010, pp. 255-260, 2010 16th Asia-Pacific Conference on Communications, APCC 2010, Auckland, New Zealand, 10/10/31. https://doi.org/10.1109/APCC.2010.5679776

Analysis of proportional fair scheduling in OFDMA systems with delay QoS constraints. / Ahn, Seongwoo; Lee, Seokwon; Kim, Kyungho; Hong, Daesik.

2010 16th Asia-Pacific Conference on Communications, APCC 2010. 2010. p. 255-260 5679776 (2010 16th Asia-Pacific Conference on Communications, APCC 2010).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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