Dynamic downlink and uplink subframe boundary adjustment for capacity improvement and QoS support in mobile WiMAX

Tri M. Nguyen, Taihyong Yim, Youngjun Kim, Kiwon Hong, Chunying Li, Jinwoo Park

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

Abstract

Mobile WiMAX is a promising broadband access technology providing wireless last mile connectivity. In the Time Division Duplex (TDD) mode, a WiMAX frame is divided into two parts: downlink and uplink subframes. The subframe division ratio is normally set to a fixed value, resulting in under-utilization of the downlink or uplink subframes. In this paper, we propose a dynamic downlink and uplink subframe boundary adjustment scheme in which the downlink and uplink subframe ratio is dynamically adjusted upon the usage statistics. It consequently improves the frame utilization efficiency, system capacity as well as QoS support.

Original languageEnglish
Title of host publication2012 4th International Conference on Communications and Electronics, ICCE 2012
Pages141-144
Number of pages4
DOIs
Publication statusPublished - 2012 Nov 22
Event2012 4th International Conference on Communications and Electronics, ICCE 2012 - Hue Royal City, Viet Nam
Duration: 2012 Aug 12012 Aug 3

Publication series

Name2012 4th International Conference on Communications and Electronics, ICCE 2012

Other

Other2012 4th International Conference on Communications and Electronics, ICCE 2012
CountryViet Nam
CityHue Royal City
Period12/8/112/8/3

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Keywords

  • 802.16
  • OFDMA
  • Packet scheduling
  • QoS
  • TDD
  • WiMAX

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

Nguyen, T. M., Yim, T., Kim, Y., Hong, K., Li, C., & Park, J. (2012). Dynamic downlink and uplink subframe boundary adjustment for capacity improvement and QoS support in mobile WiMAX. In 2012 4th International Conference on Communications and Electronics, ICCE 2012 (pp. 141-144). [6315886] (2012 4th International Conference on Communications and Electronics, ICCE 2012). https://doi.org/10.1109/CCE.2012.6315886