TITLE:
Energy-Delay Efficient Unified Routing Protocol for Wireless Sensor Networks
AUTHORS:
V. P. Jayachitra, G. Geetha, K. Santhan Vijay
KEYWORDS:
Angle Based Routing, Cross-Layer, Energy-Delay Trade-Off, Medium Access Control (MAC), Prims-Dual Minimum Spanning Tree
JOURNAL NAME:
Circuits and Systems,
Vol.7 No.6,
May
24,
2016
ABSTRACT: One of the most important
challenges in the Wireless Sensor Networks is to improve the performance of the
network by extending the lifetime of the sensor nodes. So the focus is on
obtaining a trade-off between minimizing the delay involved and reducing the
energy consumption of the sensor nodes which directly translate to an extended
lifetime of the sensor nodes. An effective Sleep-wake scheduling mechanism can
prolong the lifetime of the sensors by eliminating idle power listening, which
could result in substantial delays. To counter this, an anycast forwarding
scheme that could forward the packet opportunistically to the first awaken node
may result in retransmissions as if the chosen node falls in resource
constraints. The algorithm, namely Prim’s-Dual is proposed to solve the said
problem. The algorithm considers five crucial parameters,namely the residual energy of the
nodes, transmission power, receiving power, packet loss rate, interference from
which the next hop is determined to extend the lifetime of the sensor node.
Since the proposed work is framed keeping critical event monitoring in mind,
the sleep-wake scheduling is modified as low-power, high-power scheduling where
all nodes are in low-power and the nodes needed for data transmission are
respectively turned on to high-power mode. The integrated framework provides
several opportunities for performance enhancement for conflict-free
transmissions. The aim of our algorithm is to show reliable, energy efficient
transfer without compromising on lifetime and delay. The further effectiveness
of the protocol is verified. The results demonstrate that the proposed protocol
can efficiently handle network scalability with acceptable latency and
overhead.