Paper Title
Enhancement In Connectivity By Distributed Beam Forming

Network connectivity is a major requirement in many applications such as monitoring battlefield, surveillance, disaster management, potentially terrorist attack detection, bor-der protection, target monitoring and more. A pair of nodes is said to be connected if they lie in communication range of each other. However this connectivity is affected by displacement, dying node, and communication blockage. Due to this reason, the network topology also changes dynamically. Many researchers have devoted their attention towards developing better network connectivity schemes to improve the network connectivity and enhance lifetime of the network. This survey discusses an overview of connectivity in Wireless Sensor Network and the problems associated with it. Index Terms — Wireless Sensor Network, Smart Antenna, Pcs based Antenna, Relay Node, Connecting Dominating set, MIMO, Cooperative Transmission, Distributed Beamforming.