QoS in IEEE 802.16e for VoIP and Video with Mechanism of Soft Handover – FBSS in Highway

Abstract

This evaluation is intended to show through simulations, the performance of FBSS Handover mechanism in the case of high speed mobility with mobile WIMAX for multimedia. The model we propose for the evaluation, is close to a real case in life, where it is made up of a highway between two cities far from 145 km and responsible of vehicles traveling in both directions with relatively high speeds and variable between 70 and 130 km/h. The passengers in vehicles are equipped with terminals adapted to the IEEE 802.16e better known as the "mobile WiMAX". As a result we will suppose that the terminals exchange traffics such as VoIP and video with base stations for a real time of 100 minutes. The highway is covered by 6 base stations, whose range is a 14 km (radius) and every two base stations belong to the same ASN. So, we will evaluate the QoS of this mobility model, which uses the mechanism of Handover: Fast Base Station Switching (FBSS) during the passage of vehicles between WIMAX cells, through the measures that we will obtain by simulations.                     The simulations were conducted under the mobility module NIST of the simulator NS2.29.