A Swarm Inspired Multipath Data Transmission With Congestion Control In Manets Using Probabilistic Approach

Subhankar joardar
2012 International Journal of Wireless & Mobile Networks  
The major causes of network congestion are the lack of network resources and the irrational allocation of network resources. The traditional congestion control methods such as rate control, window mechanism, queue control and others can solve the congestion problem, but for the congestion due to irrational allocation fundamental solution is to make more effectively use of the network resources by adjusting the traffic routing depending on choice may be probabilistic, when congestion occurs. In
more » ... gestion occurs. In mobile ad hoc networks congestion creates delay in transmission and also loss of the packet that causes wastage of time and energy on recovery. The Wireless Networks have to play an important role to adopt and execute a large no of innovative application. New challenges have come considering the major limitations of the ad hoc network like node's limited processing power, balance the load of network (to maintain the computation of the node). To overcome the above problem some algorithm is invoked and there may be huge amount of packet loss and this leads to decrease the lifetime of the network. Based on the concept of evolutionary cooperation in swarm Ant, we use the ants swarm intelligence to reinforce good quality routes. The objective of our proposed algorithm is to identify the congestion areas between source and its neighboring nodes to the destination and thus it will help to avoid the congestion of the network in the intermediate links and also minimize the packet loss in the network. Using a new mathematical model considering the swarm-based ant intelligence concept, we found an efficient congestion control mechanism (Ant's probabilistic transition rule). The Mobile ad hoc network has several drawbacks that are not found in fixed networks. Unlike in the traditional wireless networks, communication in such a decentralized network is typically multi-hop, with the nodes using each other as relay routers without any fixed infrastructure. This kind of network is very flexible and suitable for applications such as temporary information sharing in a conference, disaster rescue etc. However, multi-hop routing, random movement of mobile nodes and other features in MANETs lead to The frequent change in network topology due to the mobility of the nodes causes a great deal of control information onto the network. The small capacity of batteries and the bandwidth limitation of wireless channels are other factors. The scalability is also a major factor because the network performance degrades quickly as the no of nodes increases. Routing in Mobile Ad-hoc Wireless Networks Specially configured routing protocols are engaged in order to establish routes between nodes which are more than a single hop. The ability to trace routes in spite of a dynamic topology is the unique feature of these protocols. These protocols can be categorized into two main types: Reactive (On-demand) and Proactive (Table-driven) . Evaluating the routes continuously within the network is done by proactive protocols, so when a packet needs to be forwarded the route is already known and can be immediately used. Reactive protocols appeal to a route determination procedure on demand only.
doi:10.5121/ijwmn.2012.4408 fatcat:ieflkdumdzafdhtc7rcpgu7e6u