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DBAM: Novel User Based Bandwidth Allocation Mechanism in WiMAX

  • Niharika Kumar
  • K. N. Balasubramanya Murthy
  • Amitkeerti M. Lagare
Part of the Communications in Computer and Information Science book series (CCIS, volume 142)

Abstract

IEEE 802.16e classifies packets into 5 different service classes, namely, UGS, rtPS, ertPS, nrtPS and BE. Bandwidth is allocated to SS based on the need of the service class. In this paper we propose a user based bandwidth allocation mechanism called Differentiated Bandwidth Allocation Mechanism (DBAM). WiMAX users shall be divided into 3 different priority levels as high-priority users, regular users and low-priority users. Bandwidth shall be allocated to the service flows of these service class based on the priority of the users. This method of bandwidth allocation provides a differentiated QoS to users for the same service class. Simulation results revel that when the number of Subscriber Stations (SS) is 10, high-priority and Regular users are able to transmit 25% more ertPS data compared to low-priority users and when the number of SS is 14, high-priority user transmits 30% more data compared to regular user.

Keywords

QoS WiMAX Bandwidth Allocaiton MAC DBAM 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Niharika Kumar
    • 1
  • K. N. Balasubramanya Murthy
    • 1
  • Amitkeerti M. Lagare
    • 2
  1. 1.PESITBangaloreIndia
  2. 2.IIIT-BangaloreIndia

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