QoS-aware dynamic resource allocation for wireless broadband access networks

Tri M. Nguyen, Taihyung Yim, Youchan Jeon, Yeunwoong Kyung, Jinwoo Park

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The development of the advanced wireless access technologies is focusing on the enhancement of mobile user satisfaction in terms of quality of service (QoS). As the number of mobile users increases, the amount of traffic passing through base station (BS) significantly increases so that the preplanned capacity of downlink or uplink can be exceeded from time to time resulting in the degradation of users’ QoS satisfaction. A way to utilize the downlink (DL) and the uplink (UL) of an orthogonal frequency division multiple access frame efficiently is therefore needed subject to users’ bandwidth demand which changes continuously over the time. In this paper, we propose a QoS-aware dynamic resource allocation (QDRA) scheme which dynamically adjusts the DL/UL ratio to allocate bandwidth for QoS support to users based on the usage statistics. The performance of the proposed QDRA scheme was examined by applying to the WiMAX standard specifications, to show its superiority of maintaining a higher QoS support for various classes of services compared to the pre-reported adaptive method.

Original languageEnglish
Article number104
Pages (from-to)1-12
Number of pages12
JournalEurasip Journal on Wireless Communications and Networking
Volume2014
Issue number1
DOIs
Publication statusPublished - 2014 Dec 1

Keywords

  • OFDMA
  • Packet scheduling
  • QoS
  • Resource allocation
  • WiMAX

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing
  • Computer Science Applications

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