Relay node placement is an important issue because it greatly affects the performance of
wireless ad hoc sensor networks. The pervious works mainly pay attention on placing the …

In a two-tier wireless sensor network (WSN), the relay nodes act as the cluster heads for
data aggregation and dissemination to the base station. It is very crucial and difficult to find …

Relay node placement problem is a very well-known problem of Wireless Sensor Networks.
Many techniques (heuristics and algorithms) have been proposed to solve this problem …

The placement of relay nodes is one of the critical need of wireless sensor networks when
connectivity, lifetime, fault tolerance like factors are desired in the network. In this study, we …

Relay node placement is one of the critical need of wireless sensor networks when
connectivity, lifetime, fault tolerance like factors are desired in the network. In this study, we …

Wireless sensor networks (WSNs) often operate in severe surroundings and may suffer
simultaneous failure of multiple nodes which gets the network partitioned into distinct …

Reasonable relay node setting has an important influence on reducing network energy
consumption and prolonging network lifetime in wireless sensor network. Due to the …

Two fundamental functions of the sensor nodes in a wireless sensor network are to sense its
environment and to transmit sensed information to a basestation. Heterogeneous wireless …

The relay node placement problem for wireless sensor networks is concerned with placing a
minimum number of relay nodes into a wireless sensor network to meet certain connectivity …

To enhance the structure of networks, some costly but more powerful relay nodes are
usually placed in wireless sensor networks. These nodes can prolong network lifetime and …