Wireless sensor networks (WSNs) pose challenges not present in classical distributed systems: resource limitations, high failure rates, and ad hoc deployment. The lossy nature of wireless communication can lead to situations, where nodes lose synchrony and programs reach arbitrary states. Traditional approaches to fault tolerance like replication or global resets are not feasible. In this work,...

Wireless Sensor Networks (WSNs) are defined as dynamic, self-deployed, highly constrained structured network. The WSN is a special kind of network which consists of large number of sensors and minimum one base station. Main difference between the WSN and the traditional wireless networks is that sensors are extremely sensitive to energy consumption. Energy saving and load balancing are the cruc...

In this paper, we introduce a distributed algorithm to compute the Čech complex. This algorithm is aimed at solving coverage problems in self organized wireless networks. Two applications based on the distributed computation of the Čech complex are proposed. The first application detects coverage holes while the later one optimizes coverage of wireless networks.

Wireless Sensor Network is a class of wireless ad hoc networks. Self organization is an important phase of a wireless sensor network. After deployment, sensors nodes are required to self organize themselves to form a network of their own. Security is an important aspect while forming the network. Only the authorized nodes should be allowed to join the network. For implementing security, such as...

| The Terminode project follows a system approach to investigate wide area, large, totally wireless networks that we call mobile ad-hoc wide area networks. A network of terminodes is an autonomous, self-organized, wireless multimedia network, independent of any infrastructure. In this paper we present the main challenges and certain initial technical directions.