Effect of proactive, reactive and hybrids protocol on the performance of wireless network (MANET)

Ad-hoc networks has opened a new dimension in wireless networks. It allows wireless communication in the absence of central support of the contract. In these networks, there are no fixed infrastructure because the mobile nodes are continuously making continuous and dynamic change in the topology. Routing protocols of mobile ad-hoc networks differ from the existing internet protocols which are designed for the fixed structure based wireless networks. MANET protocols have to face high challenges due to dynamically changing of topologies, low transmission power and asymmetric links. Due to link instability, node mobility and frequently changing topologies routing becomes one of the core issues in MANETs. Currently existent routing protocols provide routing solutions up to a certain level and most of them are designed and implemented in small areas. Many researchers are still working on the developments of MANET routing protocols. With the increase in the types of routing protocols used in mobile network it has become necessary to study the effectiveness of each type of protocols In this papper we compared between the most famous species (proactive, Reactive, hybrid) and choose a protocol to be representative of all species previously mentioned and the network performance assessment each type in terms of Throughput, dynamic routing routing, load, delay and determine which of these protocols appropriate for each case.

Integrating security keys exchange in the secure routing in AODV protocol

Mobile ad-hoc Networking MANETS is a promising concept to provide flexible, adaptive, and reconfigurable architecture, cost effective solution.In the mobile ad hoc network security is the basic concern for network functions work properly.Routing is the corner stone in Mobile ad-hoc Networks, A lot of known vulnerabilities and security threats can be exploited to attack routing messages, so it is important to provide secure routing protocol for MANETs.In this paper, we present a secure extension for ad-hoc On Demand Distance Vector Protocol (AODV). The default routing protocol for MANETs. The proposed protocol ensures that discovery of the route between the nodes is functioning properly and securely, achieving mutual authentication between nodes, routing message integrity, generating a security key of data sent and exchanges it securely to ensure confidentiality and all of these are in one stage. By this we save in wireless band, resource consumption, preventing duplicate of authentication algorithms.