Authors: Niharika Kumar; Siddu Algur
Addresses: Department of Information Science and Engineering, RNS Institute of Technology (RNSIT), Bangalore, India; Department of Computer Science, Rani Channamma University, Belgaum, Karnataka, India ' Department of Information Science and Engineering, RNS Institute of Technology (RNSIT), Bangalore, India; Department of Computer Science, Rani Channamma University, Belgaum, Karnataka, India
Abstract: IEEE 802.16 and its variants provide Quality of Service (QoS) by dividing the data traffic into five service classes governed by QoS parameters. Efficient bandwidth allocation algorithm and packet scheduling algorithms ensure that the desired QoS requirements are met. In this paper, a novel bandwidth allocation algorithm and a packet scheduling algorithm are proposed that regulate bandwidth intensive connections by applying three-strike technique. The proposed algorithms ensure that the bandwidth is distributed effectively among the conforming connections thereby improving the overall QoS of the network. Simulation results of the proposed algorithm, when compared with standard algorithms like Earliest Deadline First (EDF), reveal that the proposed algorithm significantly increases the throughput and decreases the data drop for the conforming connection as compared to the EDF algorithm. Throughput improvements and data drop reduction are seen for intra-class inter-MS connections as well as inter-class intra-MS connections.
Keywords: bandwidth allocation; packet scheduling; WiMAX; medium access control; MAC; QoS; quality of service; wireless communication; mobile computing; IEEE 802.16; simulation; throughput; data drop.
International Journal of Wireless and Mobile Computing, 2014 Vol.7 No.6, pp.517 - 527
Received: 07 Oct 2013
Accepted: 02 Jun 2014
Published online: 30 Oct 2014 *