دانلود مقاله FAULT NODE RECOVERY ALGORITHM TO ENHANCE THE LIFETIME OF A WIRELESS SENSOR NETWORK - انتشار 2014

اختصاصی از فایلکو دانلود مقاله FAULT NODE RECOVERY ALGORITHM TO ENHANCE THE LIFETIME OF A WIRELESS SENSOR NETWORK - انتشار 2014 دانلود با لینک مستقیم و پر سرعت .

D.Suguna et al, International Journal of Computer Science and Mobile Applications,
Vol.2 Issue. 8, August- 2014, pg. 06-14

D.Suguna,Dr. K.Elangovan

Abstract
This paper proposes a fault node recovery algorithm to enhance the lifetime of a wireless sensor network when
some of the sensor nodes shut down. This algorithm is based on the grade diffusion algorithm combined with the
genetic algorithm. The algorithm can result in fewer replacements of sensor nodes and more reused routing paths. In
this proposed algorithm increases the number of active nodes up to 8.7 times, reduces the rate of data loss by
approximately 98.8%, and reduces the rate of energy consumption by approximately 31.1%. Sensors in a wireless
sensor networks are having tendency to fail, due to the energy depletion, hardware failures, environmental conditions
etc. Fault tolerance is one of the critical issues in Wireless sensor network. The existing fault tolerance mechanisms
either consume significant extra energy to detect and recover from the failures or need to use additional hardware and
software resources. The proposed algorithm enhances the lifetime of a sensor nodes shut down and it depends on
ladder diffusion Algorithm combined with the genetic algorithm. It can result in fewer replacements of sensor nodes
with more reused routing paths and also increases the number of active nodes, reduce the rate of data loss with
reduced energy consumption.

Keywords: sensor networks (WSN), Genetic algorithm, Grade diffusion (GD) algorithm, Directed Diffusion Algorithm

دانلود مقاله An Approach towards Improving the Lifetime and Security in Wireless Sensor Network

اختصاصی از فایلکو دانلود مقاله An Approach towards Improving the Lifetime and Security in Wireless Sensor Network دانلود با لینک مستقیم و پر سرعت .

Mayuri P. Kawalkar et al, / (IJCSIT) International Journal of Computer Science and Information Technologies, Vol. 5 (2) , 2014, 2604-2611

Mayuri P. Kawalkar1, Dr. S.A.Ladhake1

Abstract— A Wireless Sensor Network (WSN) is a collection of
wireless sensor nodes forming a temporary network without
the aid of any established infrastructure or centralized
administration. In such an environment, due to the limited
range of each node’s wireless transmissions, it may be
necessary for one sensor node to ask for the aid of other sensor
nodes in forwarding a packet to its destination, usually the
base station. One important issue when designing wireless
sensor network is the routing protocol that makes the best use
of the severely limited resource presented by WSN, especially
the energy limitation. Another important factor is providing as
much security to the application as possible. In this project, an
energy efficient secure node disjoint multipath routing
protocol for wireless sensor networks is proposed. Here, the
data packets are transmitted in a secure manner by using the
digital signature crypto system. Multipath routing protocols
enhance the lifetime of the wireless sensor networks by
distributing traffic among multiple paths instead of a single
optimal path. The protocol guarantees loop freedom and
disjointness of alternate path. We have compared the
performance of this protocol with an ad hoc on-demand
multipath distance vector routing protocol. To evaluate
performance of proposed method, we have used parameters
packet delivery ratio, energy consumption, routing overhead
and throughput compare to the ad hoc on-demand multipath
distance vector routing .

Keywords— Wireless Sensor Network, Disjointness, Multipath
,Routing protocols, Lifetime.