In wireless sensor network energy consumption plays major role .The main reason for designing a enhanced optimized energy efficient routing protocol is to reduce the scarcity of energy resource .The major intension of this protocol is to improve the data accuracy, packet delivery ratio and to reduce the retransmission delay, energy consumption using energy aware activity scheduling algorithm .The opportunistic routing make use of a scheduler to co-ordinate transmission .The need for a scheduling algorithm to perform multitasking and multiplexing performance .The proposed E-OEERP reduces/eliminates such individual node formation and improves the overall network lifetime when compared with the existing protocols .It can be achieved by applying the concepts of energy aware activity scheduling algorithm for buffer node formation and routing respectively Index Terms-Compressive sensing (CS), wireless sensor network(WSN), activity scheduling. 1.IntroductionWireless Sensor Network(WSN) has drawn many research works predominantly due to its plenty of applications in various fields .This includes environmental monitoring, health monitoring, military tracking, animal tracking and monitoring.WSN refers to a group of spatially dispersed and dedicated sensors for monitoring and recording the physical conditions of an environment and organizing the collected data at a central location through wireless links. The physical conditions may include pressure, temperature, soil moisture, etc.Each sensor node in Wireless Sensor Network is equipped with a radio transceiver, a microcontroller, an interfacing electronic circuit and an energy source, usually a battery. The energy source in wsn should be handled in an efficient way as it cannot be replaced or recharged if it is placed in harsh or no man environment .Transmitting the sensed data to the base station can be done using various methods which includes :Single-hop transmission, multi-hop transmission, Cluster based transmission, Tree based and Chain based transmissions.WSNs may consist of many different types of sensors such as seismic, magnetic, thermal, visual, infrared, and acoustic and radar, capable to monitor a wide variety of ambient conditions. Though each individual sensor may have severe resource constraint in terms of energy, memory, communication and computation capabilities; large number of them may collectively monitor the physical world, disseminate information upon critical environmental events and process the information on the fly. The issues of network lifetime and data availability are extremely important due to their deployment in hostile environment. The system should provide fault tolerant energy efficient real-time communication as well as automatic and effective action in crisis situations. A typical sensor network operates in five phases which are planning phase, deployment phase, post-deployment phase, operation phase and post-operation phase. The sensor nodes consist of sensing, data processing and communicating components. They can be used fo...
Wireless networks are computer networks that are not connected by cables of any kind which enables enterprises to avoid the costly process of introducing cables. Ad hoc wireless communication between devices might be loosely defined as a scheme, often referred to as ad hoc networking. MANET is a type of ad hoc network that has the characteristics of mobility and self-configuring in which each mobile node not only act as a host and it also act as a router. Each node operates with the limited battery power to forward the data packets from the source to a group of the nodes. In a MANET, multicast is a very useful communication system for group-oriented applications, where one-to-many propagations are needed frequently in critical situations. This paper presents a new power-aware multicasting algorithm for MANETs. Here, it uses the residual battery energy for the multicasting from the source to a group of destinations. These networks are lack of fixed infrastructure and nodes are typically powered by batteries with a limited energy supply where in each node stops functioning when the battery drains. Multi-casting procedures for routing in MANET become a major concern to support the propagation of data from a sender to all the receivers. Hence the system propose PUMA (Protocol for Unified Multicasting through Announcements) for performing multi-cast routing. It reduces the load on wireless nodes by selecting the route with minimum energy with maximum hop count within the multicast group. Simulation results show that the performance of the proposed protocol is increased than the existing protocol in terms of throughput, delay, PDR and network lifetime.
The favour of wireless networks over wired networks has been increasing for the past few decades. The flexibility and accountability brought by wireless networks makes it preferable for several applications. In this midst all the present-day wireless networks, Mobile Ad hoc network (MANET) is among the most important types having distinctive applications.Each node in the Manet has a wireless interface to Communion with each other. In the Propone system adaptive acknowledgement approach (AACK) Digital signature algorithm is used which increases causes the network overhead if more malicious node involved. Thus system is used with Rijndael algorithms as a session key cryptography to reduce the network overhead caused by digital signatures in AACK. It scope of hybrid encryption is combination of Rijndael algorithm and RSA for the acknowledgement packets KeywordsMobile Ad Hoc Networks (MANET), Intrusion Detection System (IDS), Adaptive ACK,,,AODV, RivestShamiAdleman , Rijndael Algorithm and Digital Signature.
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