Power aware congestion control multi path multicast routing protocol in MANET for establishing VCR

Abstract

The latest contribution towards teaching and learning process is the use of Internet technology to establish a Virtual Class Room (VCR). These VCRs are presently available by making use of satellite communication. A Mobile Ad Hoc Network (MANET) is a collection of mobile nodes that can communicate with each other using multi-hop wireless links without utilizing any fixed base station infrastructure and centralized management. An attempt has been made to establish a multi-hop VCR based on MANET for a residential institution where the VCR itself can be mobile within a distance of 500m. VCR based on MANET application has been designed and implemented using Personal Digital Assistants (PDAs) with Microsoft .NET Compact Framework. PDAs communicate wirelessly with each other using the IEEE 802.11g technology, without the use of an infrastructure. The traditional problems faced in MANET routing are frequent node mobility, dynamic topology, diverse link capacities, limited practical bandwidth of the shared wireless channel and the battery power availability. VCR has been implemented using Multicast Adhoc OnDemand Distance Vector (MAODV) and OnDemand Multicast Routing Protocol(ODMRP) - a standard on-demand multicast routing algorithms. VCR has been further executed with Multi Path Multicast Ad hoc On demand Distance Vector (MP-MAODV) and Multiple Tree Multicast Ad hoc On demand Distance Vector (MT-MAODV) a MAODV based on demand multipath routing algorithms. The performance of PAMPMAODV algorithm has been analyzed under different test cases based on the network type dense or sparse; mobility type, file types with varying size - unformatted text, formatted text, audio file and video file and different packet sent intervals-like 100msec, 200msec, 300msec, 400msec, 500msec and 1000msec respectively. Based on the results obtained, the Power Aware Congestion Control Multipath Multicast Protocol is found to be more suitable for this proposed application.