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

Seongwoo Ahn, Seokwon Lee, Kyungho Kim, Daesik Hong

Research output: Chapter in Book/Report/Conference proceedingConference 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 languageEnglish
Title of host publication2010 16th Asia-Pacific Conference on Communications, APCC 2010
Pages255-260
Number of pages6
DOIs
Publication statusPublished - 2010 Dec 1
Event2010 16th Asia-Pacific Conference on Communications, APCC 2010 - Auckland, New Zealand
Duration: 2010 Oct 312010 Nov 3

Publication series

Name2010 16th Asia-Pacific Conference on Communications, APCC 2010

Other

Other2010 16th Asia-Pacific Conference on Communications, APCC 2010
CountryNew Zealand
CityAuckland
Period10/10/3110/11/3

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All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

Cite this

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 (pp. 255-260). [5679776] (2010 16th Asia-Pacific Conference on Communications, APCC 2010). https://doi.org/10.1109/APCC.2010.5679776