Load Balancing Congestion Control Techniques in Mobile Ad hoc Network : A Survey

Mobile ad-hoc network (MANET) is accomplished of forming a temporary network, without the required of a central administration or standard support devices available in a conventional network, thus forming an infrastructure-less network. In order to guarantee for the future, the mobile ad hoc networks establishes the networks everywhere. Congestion, the major reason for a link break is caused due to excessive load on the network, further leads to failure of nodes and topology change in the ad-hoc network. The excessive load on the nodes cause the buffer overflow that further lead to the packets being dropped. This leads to packet delay and affects the packet delivery ratio of MANET protocol. Load balancing is a solution to avoid congestion in the network. If the load is balanced then it will provide effective use of the network and reduce packet delay and improve packet delivery ratio. Transferring load of congested route to less congested routes improves overall network performance. Ad hoc On-Demand Multipath Distance Vector (AOMDV) selects a path with a lower hop count and discards routes with higher hop count. In this paper we present the survey of congestion control routing techniques to detect and avoid the possibility of congestion.