An Opportunistic Node-Disjoint Protocol for Multipath Routing Using Enhanced Clustering Scheme for Wireless Sensor Networks

Resumen

Routing in Wireless Sensor Networks (WSN) is attracting many researchers in recent days.
More specifically the on-demand multipath routing in WSN is proving to be more effective in
attaining better load balancing as well as improves degree of resilience in terms of mobility.
The present workfocussed on Intelligent Data Fusion Techniques (IDFT) that reduces data
redundancy, data transmission thereby extending the life time of network with better
bandwidth utilization. Several routes are established either through link-state or distance
vector methods. The research presents, an opportunistic Node-Disjoint (ND) protocol that
supportsrouting through multiple paths (OND-MR). The protocol forms several paths for data
transfer apart from supporting packet salvaging. This mechanism establishes a pivotal path
through enhanced clustering. AND backup route is taken as alternative path for the
underlying intermediate nodes that are along the primary route. Clustering happens by
modified Fuzzy C-Means. The famous reverse route back is saved inroute cache while
primary path information is compressed through Extended Kalman Filter (EKF). Hence, the
protocol exhibits better capability in the process of packet salvaging with much lower
overhead. The simulation studies reveal that proposed protocol deploys multiple routes
comprising of maximally disjoint paths. This eventually aids in minimizing the overheads in
route recovery as well as control messages.