An Advanced uplink scheduling at Subscriber Station for real time services in WiMAX

Divya Saxena, Aditya Trivedi, Tarun Kulshrestha

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

High mobility and need for data access with high speed, brings the Broadband Wireless Access (BWA) like WiMAX in forefront. IEEE Standard does not offer any standard scheduling algorithm and till now, it is an open issue for research. The objectives of the scheduling are resource optimization with high throughput and low computational complexity. In this paper, we propose a scheduling algorithm based on a virtual frame concept for the Subscriber Stations (SSs) of the WiMAX. Simulations are performed in Network Simulator 2 (NS2) for verification of the proposed scheme. The simulation results show that by using the proposed Advanced Scheduler (AS) approach the response time to BS decreased to 16.02% in comparison to queue length aware approach. The proposed approach optimizes the usage of the bandwidth and resources in the WiMAX networks by including intelligence for different service flows at the SSs. Moreover, it does fair management of lower class services such as nonreal time Polling Service (nrtPS) and Best Effort (BE) in comparison to Unsolicited Grant Service (UGS) and real time Polling Service (rtPS).

Original languageEnglish
Title of host publicationProceedings - 2012 3rd International Conference on Emerging Applications of Information Technology, EAIT 2012
Pages372-375
Number of pages4
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event2012 3rd International Conference on Emerging Applications of Information Technology, EAIT 2012 - Kolkata, India
Duration: 30 Nov 20121 Dec 2012

Publication series

NameProceedings - 2012 3rd International Conference on Emerging Applications of Information Technology, EAIT 2012

Conference

Conference2012 3rd International Conference on Emerging Applications of Information Technology, EAIT 2012
Country/TerritoryIndia
CityKolkata
Period30/11/121/12/12

Keywords

  • Advanced Scheduler
  • QoS
  • Scheduling algorithm
  • virtual frame
  • WiMAX

ASJC Scopus subject areas

  • Information Systems

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