-In wireless sensor network,sensor nodes has limited energy and communication ability due to which it is important to design a routing protocol.Routing protocol helps to increases network lifetime of wireless sensor network. This paper contains various existing routing protocol techniques. Keywords—WSN,LEACH,TEEN.APTEEN, location-based routing protocol

Object detection quality and network lifetime are two conflicting aspects of a sensor network, but both are critical to many sensor applications such as military surveillance. Probabilistic coverage is an appropriate approach to balancing the conflicting design requirements of monitoring applications. Under probabilistic coverage, we present an analytical model to analyze object detection quali...

This paper discusses the purposes, requirements and challenges of creating pervasive networks of devices that have sensor technology and embedded computation. The demands placed on these sensor networks suggest that they have to function in a similar way to self-organised biological systems so concepts can be taken from them to design appropriate models for how sensor networks could work. This ...