Packet scheduling algorithm with modified time-utility function to improve NRT throughput in OFDMA system

Yusuke Shimizu, Rui Zhou, Iwao Sasase

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We propose a packet scheduling algorithm to improve the throughput performance of Non-Real Time (NRT) traffic while satisfying Quality of Service (QoS) of Real-Time (RT) traffic in Orthogonal Frequency Division Multiple Access (OFDMA) system compared to the conventional algorithm. In order to support both RT and NRT packets adaptively in the varying traffic situation, the proposed algorithm adjusts the length of marginal scheduling time interval (MSTI) for the Time-Utility Function (TUF), which is related to the urgency of packets in time at a base station. In the proposed algorithm, if both the number of NRT traffic packets in buffers for each user become zero, the lengths of MSTI for voice traffic and video traffic are adjusted to the maximum available delays of voice and video traffic. Computer simulation results show that the proposed algorithm is able to provide less packet loss rate for RT traffic and better throughput performance for NRT traffic.

Original languageEnglish
Title of host publication2007 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, Conference Proceedings, PACRIM
Pages545-548
Number of pages4
DOIs
Publication statusPublished - 2007 Dec 1
Event2007 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, PACRIM - Victoria, BC, Canada
Duration: 2007 Aug 222007 Aug 24

Publication series

NameIEEE Pacific RIM Conference on Communications, Computers, and Signal Processing - Proceedings

Other

Other2007 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, PACRIM
CountryCanada
CityVictoria, BC
Period07/8/2207/8/24

ASJC Scopus subject areas

  • Signal Processing
  • Computer Networks and Communications

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    Shimizu, Y., Zhou, R., & Sasase, I. (2007). Packet scheduling algorithm with modified time-utility function to improve NRT throughput in OFDMA system. In 2007 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, Conference Proceedings, PACRIM (pp. 545-548). [4313294] (IEEE Pacific RIM Conference on Communications, Computers, and Signal Processing - Proceedings). https://doi.org/10.1109/PACRIM.2007.4313294