Cross-Layer Service Discovery Mechanism For Olsrv2 Mobile Ad Hoc Network Report

Geographic Adaptive Fidelity (GAF): Geographic Adaptive Fidelity is an energy-aware location based routing algorithm planned for mobile ad-hoc networks but has been used to WSNs. Geographic Adaptive Fidelity conserving energy by switching off redundant sensors nodes. In this routing protocol, the entire network is classified into number of static zones and a virtual grid is made for the covered region. Every node utilizes its GPS-indicated location to link itself with a point in the virtual grid. Nodes linked to the same point on the grid are assumed equivalent with respect to packet routing costs. Nodes within a zone cooperate by choosing one node to show the zone for a period of time whereas the rest of the nodes sleep. A sample situation is considered from

maximization of network lifetime [8]. This protocol is also divided into two phase: 1. Clustering and 2. Routing of aggregated data. In clustering phase, a fixed topological arrangement is done by sensor nodes. In the data aggregation phase, heuristic is proposed. The advantage is that it provides energy efficiency and network lifetime also be increased.

In this section, we present the details of proposed protocol. Our protocol implements the idea of probabilities for cluster heads selection based on initial energy and residual energy of sensor nodes as well as the average energy of the sensor network.

We have simulated another network having 30 numbers of nodes. The simulation is made using the same platform used for network 1. This simulation is done taking node 1 as a source and node 28 as destination. The optimal path obtained in this simulation is 1-23-13-28, in which data rate is 0.47 kbps. The second optimal path is 1-17-28, in which data rate is 0.35 kbps. The simulated results are summarized here in

In order to evaluate the performance of the proposed DCHS algorithm, we compare MILP with the energy consumption and delay constrained routing protocol.

A group of wireless sensor nodes (devices) dynamically constructs a temporary network without the exercise of any pre-existing network infrastructure or centralized administration. The main goal of ad-hoc networking is multihop broadcasting in which packets are transferred from source node to destination node through the intermediate nodes (hops). The main function of multi hop WSN is to enable communication between two terminal devices through a bit of middle nodes, which are transferring information from one level to another level. On the foundation of network connectivity, it dynamically gets to determine that which nodes should get included in routing, each node involved in routing transmit the data to further

To ensure QoS in our proposed algorithm we calculate the utility of a node e.g. $node_i$ as the summation of remaining CPU cycle ($R_{CPU_i}$), remaining memory in that node ($R_{mem_i}$), remaining bandwidth available for that node ($R_{bw_i}$), remaining data reside in the buffer to transmit ($R_{data_i}$), data rate ($Data_{rate_i}$) and priority of data to be transmitted $Pri_{data_i}$.

routing. In this chapter, we introduce some popular routing protocols in each of the three

A WSN is a type of wireless networks that consists of collection sensor nodes which are tiny devices. Each sensor node of the network has different processing capability. It may contain multiple types of memory (program, data and flash memories), have a RF transceiver, have a power source (e.g., batteries and solar cells), and accommodate various sensors and actuators. The nodes communicate wirelessly and often self-organize after being deployed in an ad hoc fashion [13, 14]. Optimum need of each sensor node is to maximize its own utility function. Also the whole network requires resource assignments balance to perform in a useful and efficient way. This chapter presents a brief survey on WSNs showing its types, characterizing features, protocols and applications.

Now a days Wireless sensor network devices are getting attention from many researchers and many device developers. These are all low powered devices and these are getting popular and becoming critical part of many systems for their performance. These nodes consists of low powered microprocessors, sensors, communication chips, etc. All the aspects such as designing hardware to any protocols depends on how much power is being consumed by these devices. We are doing our analysis with Zolertia Z1 nodes. These devices are compact, low powered also they are easy to deploy anywhere and economically efficient. In this paper we are using actual experimental results in different environment. These

Fundamental sorts of ad hoc routing algorithms can be single-hop and multihop, based on distinct hyperlink layer attributes and routing protocols. single-hop MANET is less difficult than multihop in phrases of structure and implementation, with the lesser price of functionality and applicability. whilst turning in records packets from a source to its destination out of the direct wireless transmission variety, the packets have to be forwarded thru one or extra intermediate nodes.

Service-Oriented Architectures are rapidly being accepted by the IT world as a sound, modularized approach for building and deploying services across the extended enterprise. Practical extension of these architectures requires careful planning. The SOA is mainly implemented with web services. In this paper I have tried to explain the so many things about service oriented architecture I and I think this paper will help to other for further study in the service oriented architecture.

After electing CHs, every CH announces all sensor nodes in the network that it is the new CH. When each node receives the announcement, it chooses its desired cluster to join based on the signal strength of the announcement from the CHs to it. So, the sensor nodes inform their appropriate CH to join it. Afterwards, the CHs based on a TDMA approach assign the time slot to each node so that a member can send its data to its CH in this period. The sensor nodes can initiate sensing and transmitting data to the CHs during the steady state phase. The CHs also aggregate data received from the nodes in their cluster before sending these data to the BS via a single hop fashion. D. Hybrid Energy Efficient Distributed Clustering [HEED] Younis and Fahmy proposed an iterative clustering protocol, named HEED. HEED is different from LEACH in the way CHs are elected. Both, electing the CHs and joining to the clusters, are done based on the combination of two parameters. The primary parameter depends on the nodes residual energy. The alternative parameter is the intra cluster “communication cost”. Each node computes a communication cost depending on whether variable power levels, applied for intra cluster communication, are permissible or not. If the power level is fixed for all of the nodes, then the communication cost can be proportional to (i) node

CMDS in [45], exploit the multipath and cluster approaches to enhance the ability of load balance, which is extending the network lifetime. CMDS divide

ABSTRACT: Wireless sensor networks is a self-configured network means any node can join it or leave it at any time. it is a self-healing and self-organizing. Self-healing networks allow nodes to reconfigure their link associations and find other pathways around powered-down nodes or failed nodes. Self-organizing allows a network automatically join new node without the need for manual interference. In this paper, we are using actor nodes to solve energy hole problem so that we can reduce energy consumption and can enhance throughput of network.