This book presents the new reputation and cluster based mechanism to identify the sources of attack (i.e. attackers) may lead to the routing in MANETs to be more secure, reliable and authenticated by reducing the control packets as well as packet loss. In this book detection mechanism, the attacker identification can be achieved in two different granularities according to different MANET circumstances. To accomplish the attack node identification, a detection mechanism is developed which is based on reputation scheme. Finally, develop a reaction mechanism against the malicious node attack....

A Wireless Sensor Network (WSN) is a collection of small, self-contained electro-mechanical devices that monitor the environment conditions. These sensors can span a large geographical area. These nodes can communicate with each other via hops in an ad-hoc manner. The sensors are battery operated, so they have limited power. Energy is major concern among the Wireless Sensor Networks. There are many design issues for WSNs such as deployment, mobility, infrastructure, network topology, network size and density, connectivity, lifetime, node addressability, data aggregation etc. WSNs can be of...