Impact of Packet Size and Mobility on Heterogeneous Wireless Network

Abstract

Most of the real life networks are heterogeneous which always combine the best features of two or more networks. An integration of available wireless networks viz: Cellular and Wireless Local Area Network on expandable and flexible platform is called as radio resource management for heterogeneous networks. Along with resource utilization, end to end delay and throughput are also important parameters for analysis of heterogeneous networks. The existing research work has focused on the effect of packet size and mobility management independently on heterogeneous networks. This paper presents algorithms developed using Ad-hoc on Demand Distance Vector routing protocol to analyze the combined effect of packet size along with mobility management for heterogeneous networks. The developed algorithm considers common radio resource management scheme using packet size of 256, 512, 1024 bit. The two mobility pattern pause 5 and pause 60 are created with log movement to nodes. The heterogeneous network created with 21 nodes along with MAC protocol 802.11b and data rate of 11 Mbps. The simulation is done for 50 s. The simulation results show that End-to-End Delay, Throughput and Bandwidth Utilization of the heterogeneous networks are improved by packet size and mobility management as a combined task. Secondly, the developed priority based vertical handoff technique shows improvement in Bandwidth utilization, Packet Delivery Ratio (PDR) and Energy Consumption for heterogeneous networks. The Network Simulator is used to demonstrate the functionality and evaluate the performance of the algorithms developed.