In this paper, we present a directional antenna-based leader-follower robotic relay system capable of building end-toend communication in complicated and dynamically changing environments. The proposed system consists of multiple networked robots one is a mobile end node and the others are leaders or followers acting as radio relays. Every follower uses directional antennas to relay a communica...

The application of Multihop Cell phone-based Sensor Network (MCSN) technologies for the Data gathering service has brought new challenges in maintaining communication clusters of Cluster heads for long time durations. Stable clustering methods reduce the reclustering frequency in MCSN and provide for a more energy-efficient hierarchical network topology. The stability is defined in terms of Dom...

ABSTRACT MANET is a multi hop wireless network in which the mobile nodes are dynamic in nature. Each node in the network has a limited bandwidth and minimum battery power. Due to this challenging environment the mobile nodes can be grouped to achieve better stability. Grouping the mobile nodes is called clustering, in which a leader node is elected to manage the entire network and which is resp...

This paper aims to design and develop energy conscious reliable routing protocol based on fuzzy logic towards clustering in wireless ad hoc networks. For the past several decades the clustering problem for wireless ad hoc networks is proposed by several researchers. This research work takes the objective of energy conscious routing since nodes present in the wireless ad hoc networks are battery...

nowadays, economic load dispatch between generation units with least cost involved is one of the most important issues in utilizing power systems. in this paper, a new method i.e. water cycle algorithm (wca) which is similar to other intelligent algorithm and is based on swarm, is employed in order to solve the economic load dispatch problem between power plants. wca is used to solve complicate...

A new strategy for clustering a wireless AD HOC network is proposed. The main contribution of our work is to improve Weighted Clustering Algorithm (WCA) [5] and other similar algorithms. In literature, the node degree is considered as an important weight metric in clusterhead selection process. Unfortunately, this metric is not consistent especially when it is considered separately at the node ...

While the proportion of people with disabilities in society has been rapidly increasing due to the demographic trends long documented by many researchers, governmental leaders have paid little attention to their needs when planning and implementing Web projects. If this ignorance continues, people with disabilities will be even more disadvantaged since acquiring knowledge is now much easier for...

While the proportion of people with disabilities in society has been rapidly increasing due to the demographic trends long documented by many researchers, governmental leaders have paid little attention to their needs when planning and implementing Web projects. If this ignorance continues, people with disabilities will be even more disadvantaged since acquiring knowledge is now much easier for...

0045-7949/$ see front matter 2012 Elsevier Ltd. A http://dx.doi.org/10.1016/j.compstruc.2012.07.010 ⇑ Corresponding author. Tel.: +60 379675266; fax: E-mail addresses: [email protected] (H. hoo.com (A. Sadollah), [email protected] (A m.edu.my (M. Hamdi). This paper presents a new optimization technique called water cycle algorithm (WCA) which is applied to a number of constrained op...

A mobile ad hoc network (MANET) is a self configuring network of mobile devices connected by wireless links. In order to achieve stable clusters, the cluster-heads maintaining the cluster should be stable with minimum overhead of cluster re-elections. This work proposes selecting stable cluster heads using a modified Weighted Clustering Algorithm and combining it with Link Expiration Time calcu...