Clustering in wireless sensor networks is one of the crucial methods for increasing of network lifetime. There are many algorithms in for clustering. LEACH algorithm is one of the important clusters based in wireless sensor network. In this paper we proposed a new clustering method for increasing of network lifetime. In this we distribute several sensors with a high-energy for managing the clus...

Wireless sensor networks (WSNs) are an emerging technology that has the potential to transform way agricultural farms operate. However, deploying WSNs in presents a unique set of challenges. Limited coverage area, power source availability, data collection and processing, environmental factors, cost, integration with existing systems some problems need be addressed when farms. Hence, this work,...

In Vehicular ad hoc networks (VANET), a host may exhaust its power or move away without giving any notice to its cooperative nodes, causing changes in network topology, and thus, these changes may significantly degrade the performance of a routing protocol. Several routing protocol studies based on node lifetime and link lifetime have been done to address this problem. We propose a new algorith...

The advancement in last decade in electronics & communication, computer science and information technology domain has resulted in the new computing and communication era, known as Wireless Sensor Networks. The routing protocols differ on the basis of application and network architecture. With awareness is a compulsory design criterion, many new protocols have been specifically designed for rout...

Due to integration of heterogeneous wireless technology demand of seamless communication is increases. Various approaches have been proposed for network selection in vertical handoff. Here we propose a new energy efficient network selection algorithm by considering three networks (CDMA, WIMAX &WLAN) for network selection .In this work, based on the power consumption, traffic class and current b...

One critical issue in designing and managing a wireless sensor network is how to save the energy consumption of the sensors in order to maximize network lifetime under the constraint of full coverage of the monitored targets. In this paper, we adopt the common approach of creating disjoint sensor covers to prolong network lifetime. The typical goal used in the literature is to maximize the numb...

This paper addresses two versions of a lifetime maximization problem for target coverage with wireless directional sensor networks. The sensors used in these networks have a maximum sensing range and a limited sensing angle. In the first problem version, predefined sensing directions are assumed to be given, whereas sensing directions can be freely devised in the second problem version. In that...