This paper presents Fuzzy and Ant Colony Optimization (ACO) based MAC/Routing cross-layer protocol (FAMACRO) for Wireless Sensor Networks that encompases cluster head selection, clustering and inter-cluster routing protocols. FAMACRO uses fuzzy logic with residual energy, number of neighboring nodes and quality of communication link as input variables for cluster head selection. To avoid “hot s...

This paper discusses 'head clustering', a novel, linguistically-motivated method for representing the aboutness of a document. First, a list of candidate significant topics consisting all simplex NPs is extracted from the document. Next, these NPs are clustered by head. Finally, a significance measure is obtained by ranking frequency of heads: those NPs with heads that occur with greater freque...

The use of Network Lifetime Maximization while disseminating queries to appropriate regions since data queries often include geographic attributes and apply Ant Colony Optimization clustering is proposed here. The protocol, uses energy aware and geographically-informed neighbor selection heuristics to route a packet towards the destination region to improve the link stability during data transf...

Fault control and tolerance in WSN is a challenging problem because of limited energy, bandwidth, and computational complexity. While facing numerous threats these severely resource constrained nodes are responsible for data collection, data processing, localization, time synchronization aggregation and data forwarding. One of the effective approaches to control and tolerate these threats is th...

This document presents the Centralized Energy Management System (CEMS), a dynamic fault-tolerant reclustering protocol for wireless sensor networks. CEMS reconfigures a homogeneous network both periodically and in response to critical events (e.g. cluster head death). A global TDMA schedule prevents costly retransmissions due to collision, and a genetic algorithm running on the base station com...

The research on various issues in Mobile ad hoc networks are getting popularity because of its challenging nature and all time connectivity to communicate. We propose a topology adaptive clustering algorithm for mobile ad hoc network. Two major node parameters like its mobility and available battery power are considered for the node suitability as cluster head. This results into a faster cluste...

Wireless sensor networks are event-based systems based on the collaboration of several micro sensor nodes. Due to the limited supply of power at sensor nodes, power efficient configuration of wireless sensor network has become a major design goal to improve the lifetime of the network. The cluster-based wireless sensor network can enhance the whole network lifetime by aggregating the collected ...

Smart environment is widely applied and it is the most important application of wireless sensor networks. Reduction of the energy consumption problem is the key to developing WSN. In the cluster based of energy-efficient method, the fixed cluster head number, the energy of node and the transmission distance are the keys to extending the network lifetime. We propose an improved grouping protocol...

Wireless Sensor Network (WSN) is widely used for monitoring and gathering data in an autonomous fashion. Since sensors are small and power constrained devices, it is the most important to minimize the energy consumption. We propose Node Degree Based Clustering (NDBC) for enhancing life time of heterogeneous wireless networks. In this paper, two types of sensor nodes, i.e., advanced and normal n...

As we know in Mobile Ad hoc network our Nodes are highly mobile. They move around the Network. Due to this network topology and number of neighboring nodes in each node frequently change. Movement of nodes from one to another network also affect to the communication between them. As the number of nodes increases complexity of MANET increases in various issues. Nodes within the cluster communica...