Abstract
The recent usage of small, portable and low cost devices has increased with most of them communicating through a wireless medium. As such devices self-organize, reconfigure without a fixed infrastructure, they form an ad hoc network known as Mobile Ad hoc Network (MANET). Mobile nodes ensure a dynamic, but an unpredictable topology, making routing challenging. Many routing protocols were suggested, with the numbers increasing daily. Context aware routing is a new MANET routing trend based on setting network context through a conceptual model. This study proposes context aware routing with a hybrid Ant Colony Optimization (ACO) -Artificial Bee Colony (ABC) algorithm to select optimal routes. Simulations are with limited nodes in a MANET. Performance evaluation is through parameters like end to end delay, retransmission attempts and throughput. The results revealed that ANT BEE algorithm improves performance when compared with Dynamic Source Routing (DSR) and ABC algorithm.
Highlights
Mobile Ad hoc Network (MANET) are peer-to-peer multi hop mobile wireless networks with neither fixed communication infrastructure nor Base Stations (BSs) (Yoo and Agrawal, 2006)
Experiment results based on simulations revealed that Context-Aware Ordered Meshes (CAROM) attained the same or better data delivery and end-to-end delays compared to conventional unicast/multicast routing schemes for MANETs (AODV, Optimized Link State Routing protocol (OLSR) and ODMRP)
This study suggests a context aware routing with hybrid Ant Colony Optimization (ACO) Artificial Bee Colony (ABC) algorithm to select optimal routes
Summary
MANETs are peer-to-peer multi hop mobile wireless networks with neither fixed communication infrastructure nor Base Stations (BSs) (Yoo and Agrawal, 2006). MANETs are initially meant for use in dangerous situations like rescue and battle field operations to ensure that emergency personnel/soldiers are aware of location of chemical, biological and hazardous material In such networks, Mobile Nodes (MNs) come under a common authority (military or government agency) and are deployed to collaborate towards a common objective. Ad hoc network applications examples include businessmen sharing information in meetings or conferences, soldiers relaying battlefield information and disaster relief personnel coordinating efforts post fires or earthquakes In such applications, MANETs can become key components in 4G architecture as they offer multimedia services to mobile users in areas which are without existing communications infrastructure. Like DSR protocol, route discovery procedures are used on demand when a source has a new connection pending for a new destination This usually consists of flooding of query packets which eventually produce destination route as a reply. Results showed that ABC algorithm improved performance when compared with Dynamic Source Routing (DSR)
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