Performance Analysis of Extended AODV with IEEE802.11e HCCA to Support QoS in Hybrid Network

The integration of the fixed wired network and wireless mobile ad hoc network can be used to eliminate dead zones in the wireless network, and can also be used to extend the coverage of wireless networks. The integration of wired and wireless networks also known as hybrid networks, is gaining popularity due to its usefulness and practical use. Real time applications in hybrid network need some suitable quality of service. The quality thresholds are imposed on parameters like delay, jitter, packet loss and throughput. This paper utilizes the Extended AODV routing protocol for communication between MANET and fixed wired network and IEEE 802.11e MAC function HCF Controlled Channel Access (HCCA) to support quality of service in hybrid network. The performance of extended AODV, with HCCA (IEEE 802.11e) and without HCCA (IEEE802.11) is compared using simulation for real time voice over IP traffic. The extensive set of simulations shows that extended AODV with HCCA provides the drastic reduction in jitter compare to without HCCA.