A Study on Congestion Aware Multipath Routing Protocols in MANET

Abstract

Traditional routing schemes that route all traffic along a single path. Multipath routing strategy takes more than one possible path between the same source and destination pair. This facility is used to control the congestion and overcome the performance degradation. Unlike single path routing, multipath routing relies on multiple paths if one route fails without halting the data transmission multipath routing strategy chooses another alternate path and continues the transmission. In this paper several fundamental multipath routing protocols are discussed in detail. Every protocol has its unique feature and it controls congestion in a different way.