Abstract
Mobile Ad Hoc Networks (MANETs) form a class of dynamic multi-hop networks consisting of a set of mobile nodes that intercommunicate on shared wireless channels. MANETs are self-organizing and selfconfiguring multi-hop wireless networks, where the network structure changes dynamically due to the node mobility. There exists no fixed topology due to the mobility of nodes, interference, multipath propagation and path loss. Hence efficient dynamic routing protocols are required for these networks to function properly. Many routing protocols have been developed to accomplish this task. In this paper we survey various new routing protocols that have been developed as extensions or advanced versions of previously existing routing protocols for MANETs such as DSR, AODV, OLSR etc.
Highlights
Mobile Ad Hoc Networks are wireless networks where nodes communicate with each other using multi-hop links
We discussed new advancements and improvements being made in existing efficient routing protocols to make them more efficient and to meet the challenges being faced in routing in ad hoc networks
Most of the routing protocols studied such as BAWB-Dynamic Source Routing (DSR), Cumulative Congestion State Routing Protocol (CCSR), Energy-Aware Optimized Link State Routing (EOLSR), Trust Aware Routing Protocol (TARP) etc. take into consideration network bandwidth and congestion control which are important factors in efficient routing
Summary
Mobile Ad Hoc Networks are wireless networks where nodes communicate with each other using multi-hop links. Routing in ad hoc networks has been challenging ever since wireless networks came into existence. A number of routing protocols have been established or proposed for efficient routing in Mobile Ad Hoc networks. The traditional routing protocols developed for wired networks do not meet the demands of routing in mobile ad hoc networks due to frequent change in topology of mobile nodes and power constraint. Existing distance-vector and link-state based routing protocols are unable to catch up with frequent link changes in ad hoc wireless networks, resulting in poor route convergence and very low communication throughput. New routing protocols have been developed or proposed to address the concerns of routing in mobile ad hoc networks.
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