Sensing coverage is a critical issue in sensor network deployments. We propose a novel scheme to maintain the sensing coverage in sensor networks, which we call CASS (Coverage-Aware Self-Scheduling). Different from the existing work on coverage maintenance, CASS probabilistically schedules sensing activities according to the sensor’s contribution to the sensing coverage of the whole sensor netw...

WSN coverage optimization is an important problem. Considering that the artificial fish algorithm is easy to fall into local optimum and of slow convergence, an improved algorithm has been proposed in this paper. The chaos strategy is used to carry out the initialization of the foraging behavior, which makes the fish swarm evenly distributed in space, to avoid the randomness of the initialized ...

Wireless sensor networks can be used to monitor the interested region by multi-hop communication. Coverage is a primary metric to evaluate the capacity of monitoring. In this paper, we focus on the coverage issue under border effects, where the sensor nodes are distributed in a circle-shaped region randomly. Under this scenario, the expected coverage of the sensor node and the total network cov...

It is generally assumed that using more diverse traffic to test network devices could achieve larger code coverage. However, how to describe the diversity of traffic traces and the relationship between the traffic diversity and code coverage is still an issue. In this paper, the traffic diversity is defined using the number of packets and the size of the subnets involved, and traces having vari...

Underwater wireless sensor network nodes deployment optimization problem is studied and underwater wireless sensor nodes deployment determines its capability and lifetime. Underwater wireless sensor network if no wireless sensor node is available in the area due to used up energy or any other reasons, the area which is not detected by any wireless sensor node forms coverage holes. The coverage ...

It is well-known that wireless scheduling algorithm could exploit multi-user diversity to enhance the network capacity of wireless systems. However, the advantage of scheduling with respect to network coverage is a relatively unexplored topic. We consider a wireless system with an access point or base station equipped with transmit antennas as well as mobiles with single receive antenna. With m...

One of the most important and basic problems in Wireless Sensor Networks (WSNs) is the coverage problem. The coverage problem in WSNs causes the security environments is supervised by the existing sensors in the networks suitably. The importance of coverage in WSNs is so important that is one of the quality of service parameters. If the sensors do not suitably cover the physical environments th...