A Proposal Approach for Enhanced Route Stability in MANET Using AODV Protocol

A MANET is an autonomous collection of mobile users that communicate over relatively bandwidth restricted wireless links. Since the nodes in topology are mobile, the network might change rapidly and unpredictably with time. Due to mobility of nodes in a network, the path stability is disturbed and hence the link breakage occurs. In this paper, an estimated time based stable routing methodology is proposed with the help of flowchart, which further will improve breakage of link and hence the lifetime of the network will increase considerably.

A Novel Methodology for Route Stability Using AODV in MANET

A MANET is an autonomous collection of mobile users that communicate over relatively bandwidth restricted wireless links. Since the nodes in topology are mobile, the network might change rapidly and unpredictably with time. The network is decentralized; where all network activities including discovering the topology and delivering messages must be executed by the nodes themselves i.e. route discovering functionality will be incorporated into mobile nodes. But, due to mobility of nodes in a network, the path stability is disturbed and hence the link breakage occurs. In this research work, the signal strength is continuously measured till the node go out of range. Then, time is noticed and if time limit is below threshold value, then the path is not selected. On the other hand, if the value of time limit is above threshold, the path is selected and hence the less breakage occurs in that case.

Routing Protocol for Cognitive Radio Ad Hoc Networks

Routing is an important issue in cognitive radio ad hoc networks (CRAHNs) owing to the stochastic activity of primary users (PUs). In particular, route stability remains an important issue in the CRAHN protocols. In this paper, the authors propose a stability-weighted cumulative expected transmission time (SWCETT) routing protocol. The SWCETT routing protocol aims towards providing the most optimal route based on both quality of service (QoS) metrics, such as delay and throughput, and stability of the route in the CRAHN. The performance of the SWCETT routing protocol is determined through simulations and compared with other routing protocols. The proposed routing protocol is capable of providing better delay and throughput than other routing protocols. The results prove the importance of the route stability metric in raising the performance of CRAHNs.

Regional energy- and mobility-aware routing protocol for hybrid wireless mesh network

Existing routing protocols for hybrid wireless mesh network neglect the negative impact on network lifetime and route stability caused by energy constraints and mobility of mesh clients. To solve this issue, a regional energy- and mobility-aware routing protocol is proposed in this article. Both energy and mobility features in hybrid wireless mesh network are considered in this routing protocol. On one hand, within the communication transmission range, the intensity and degree of dispersion in energy consumption can be perceived. The node whose neighbor area has sufficient energy can be selected for network services, which can balance energy and extend the network lifetime. On the other hand, the mobility of clients is considered to enhance the stability and reduce network overhead. Therefore, regional energy- and mobility-aware routing protocol can balance network energy consumption, prolong network lifetime, and improve route stability. Simulation results via NS2 show that regional energy- and mobility-aware routing protocol can achieve better performance significantly.