Vehicular Ad-hoc Network (VANETs) is the specific form of Mobile ad-hoc networking (MANETs) in which high dynamic nodes are utilized in carrying out the operations. They are mainly used in urban areas for safety traveling. Clustering algorithms are used for clustering the vehicles that are in the range of the network as VANET consists of a great amount of traffic. A clustering head node is used...

An WSN may often consist of hundreds of distributed sensors to monitor, collect and transmit information from various environments. Signals are relayed from one sensor to another sensor until it reaches the sink node which could either be mobile or a central control unit. The breaking down of sensors would inevitably affect the transmission of signals or even cause signal lost. Hence it is norm...

In-network data aggregation plays an important role on energy consumption from the point of reducing the amount of communication in cluster-based wireless sensor networks. The selection of cluster heads is usually based on two criteria which are the number of cluster heads network needed and the times of every node serving as the cluster head. Too much or too little cluster head number will sho...

An ad-hoc wireless sensor network is also called self-organized networking that wireless sensor nodes can automatically communicate for each other. Therefore, each sensor node is no need for the information such as location of each sensor. Similarly, it consumes much energy on the information exchanged of each sensor node in order to maintain the entire ad-hoc wireless sensor network alive. The...

These instructions give you basic guidelines for preparing camera-ready papers for AP’s journals In the traditional cluster-based collaboration spectrum sensing algorithm, judgment threshold is only related to the false alarm probability. Besides, the cluster head use a simple OR-rule to execute information fusion, which limits the sensing performance to some extent. In this thesis, we propose ...

-------------------------------------------------------------------ABSTRACT-----------------------------------------------------------------AbstractMobile Ad hoc Networks (MANETs) are subject to various kinds of attacks. Deploying security mechanisms is difficult due to inherent properties of ad hoc networks, such as the high dynamics of their topology, restricted bandwidth, and limited resourc...

The network scalability may be achieved by grouping sensor nodes into a cluster hierarchy. Cluster head is referred as the leader of every cluster. In order to achieve stable clustering for mobile environment many clustering schemes are used for Wireless Sensor Network. This paper, proposeds an extension to Low Energy Adaptive Cluster Head protocol namely a protocol for energy efficient mechani...

In wireless sensor networks, the selection of cluster heads relies upon the various selection parameters, such as energy, distance, node concentration and rate of retransmission. There is always uncertainty in the suitability of sensor node for the cluster head role due to these various selection parameters. Fuzzy logic is capable of overcoming uncertainties even with incomplete available infor...

Wireless Sensor Networks (WSNs) present a new generation of real-time embedded systems for a wide variety of applications. However WSNs have limited computation, energy, and memory resources. One of the approaches to minimize the energy consumption is to allow only some nodes in a cluster of sensor nodes, called clusterheads, to communicate with the base station. Appropriate cluster-head electi...

The wireless sensor networks consist of hundreds of inexpensive wireless nodes, each with some computational power and sensing capability, operational power and sensing capability, operating in an unattended mode. Clustering is an efficient approach to capitalize the energy of energy constraint sensor nodes in wireless sensor networks (WSNs). Low Energy Adaptive Clustering Hierarchy (LEACH) is ...