We study network design with a cost structure motivated by redundancy in data traffic. We are given a graph, g groups of terminals, and a universe of data packets. Each group of terminals desires a subset of the packets from its respective source. The cost of routing traffic on any edge in the network is proportional to the total size of the distinct packets that the edge carries. Our goal is t...

Recently, data collection from seabed by means of underwater wireless sensor networks (UWSN) has attracted considerable attention. Autonomous underwater vehicles (AUVs) are increasingly used as UWSNs in underwater missions. Events and environmental parameters in underwater regions have a stochastic nature. The target area must be covered by sensors to observe and report events. A ‘topology cont...

Coverage and connectivity both are important in wireless sensor network (WSN). Coverage means how well an area of interest is being monitored by the deployed network. It depends on sensing model that has been used to design the network model. Connectivity ensures the establishment of a wireless link between two nodes. A link model studies the connectivity between two nodes. The probability of e...

this survey was carried out on children less than five years of age from rural areas of three provinces in iran (west azarbaijan, bushehre, and central province), with different health care delivery systems and various types of immunization scheme, to determine the immune status of measles and the vaccine coverage. our results indicate that the rates of measles immunity and vaccine coverage for...

In this paper, we study the impacts of sensor node distributions on network coverage. We first show the impacts on network coverage by adopting different sensor node distributions through both analytical and simulation studies. Then, we adopt a distribution-free approach to study network coverage, in which no assumption of probability distribution of sensor node locations is needed. The propose...

In this commentary I will demonstrate that the case study of Uganda’s Human papilloma virus (HPV) vaccine application partnership provides an excellent example of widening our lens by evaluating the successful HP vaccine coverage from a network-centric perspective. That implies that the organizational network is seen as the locus of production and that network theories become indispensable to a...

The main focus of this paper is to optimize the coverage each 4G LTE network cell within service area. There are many algorithms can be implemented determine optimal area including deterministic and heuristic approaches. approach could solve accurately optimization problem but need more resources time consuming convergence parameters. Therefore, approaches were introduced improve drawback. meth...