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In underwater sensor networks (UWSNs), information transmission is extremely challenging because of the underwater channel. Underwater acoustic channel suffers from long propagation delay and low bandwidth is inclined to packet losses. Hence, the design of an energy efficient communication system is challenging under the water. In this paper, we present an energy efficient clustered multi-hop routing...
By exchanging the information on the status and the surrounding environment between devices, devices can determine the optimal action. We focus on the construction of a digital signature scheme for local broadcast, which allows the devices with limited resources to securely transmit broadcast messages. A multi-group authentication scheme that enables a node to authenticate its membership in multi...
Wireless Sensor Networks need energy efficient protocols for communication and data fusion to consolidate data and prolong the lifetime of the network. In this paper, an adaptive hierarchical clustering and routing method has been proposed. This clustering and routing method is based on maximum bottleneck energy routing (MBER) from a node to the sink. This method favors the routes with the highest...
In WSN there is always a scope of improvement in efficient energy utilization, network lifetime. Efficient energy utilization always seems to be an important aspect in WSN's. Because of the fact that energy consumption directly effect the overall performance of WSN. Numbers of protocols are designed for enhancement of network lifetime and prevent the batteries from earlier drainage. Most of the protocols...
In this paper extension to LEACH protocol i.e. Modified LEACH protocol has been analytically and critically analyzed. It has been shown that the hard threshold value in Modified LEACH protocol has a direct impact on the network lifespan of a wireless sensor network. More the initial energy more will be the net lifetime of the network, as the number of alive nodes will be more. Simulation and analytical...
The capacity limits of the Random Access Channel (RACH) of Long Term Evolution (LTE) for highly dense Machine-to-Machine communications are studied in this paper. We consider the case study when a high number of devices attempt to transmit information to the same base station in a very short period of time. Simulations have been performed considering several parameter configurations related to the...
Wireless Sensor Network (WSN) is most integral part of our day to day life. They are widely used in various applications. Many Clustering based algorithms have been proposed for designing WSN. Some of them are fuzzy based approaches. The purpose of this paper is to propose a clustering based approach with fuzzy logic and relay node implementation that can cope up with drawbacks of the previously proposed...
The Smart Grid (SG) is one of the latest emerging and rising models for modernizing traditional electrical power grids, and wireless communication is considered as a major building block in realizing SG. SG applications enable electrical devices to be interconnected and communicate with each other, requiring pervasive control of these actors. Therefore, wireless sensor network-based applications are...
This paper proposes Efficient & Robust Reprogramming Architecture for Multihop Code Generation in Wireless Sensor Network (WSN) to provide more energy efficient & robust code dissemination protocol for multihop network. Supporting the capability for remote reprogramming of sensor nodes via wireless network has highlighted the importance of research in this area. In this diverse field...
Energy of sensor nodes is scarce resource in wireless sensor network. It is vital to reduce energy consumption to improve lifetime of wireless sensor network. A proficient way to improve lifetime is to partition sensor network into groups called cluster with high energy node acting as leader of the cluster called cluster head. Cluster head is responsible for managing intra-cluster and inter cluster...
Routing protocol is one of the most important methods to reduce and balance energy consumption in Wireless Sensor Network. Three schemes are proposed in this paper aiming to reduce nodes' energy consumption and extend the lifetime of the network, including communication distance minimization, substitutable nodes sleeping and child nodes balancing. At last, simulation and analysis is given, which shows...
Wireless Sensor Networks (WSNs) often are deployed in harsh environment where reliable communication may not be feasible. This work proposes data-driven data transmission mechanism to improve packet delivery frequency especially in harsh communication environments. In particular, this work evaluates the effect of adjusting data transmission frequency based on data priority, to provide sufficient data...
In wireless sensor networks, clustering algorithm prolongs works' lifetime drastically. In a cluster, because the distances are different between member nodes and head node, the energy consumption of member nodes will become unbalanced when they transmit message to the head node directly. The EBCA (energy balanced consumption algorithm) is proposed for the problem. In EBCA, member nodes are divided...
Maximizing network lifetime and minimizing energy consumption are among the central concerns in the design of applications and protocols for wireless sensor networks (WSN). Clustering has been proven energy-efficient in sensor networks since data processing, filtering routing and relaying are oper ated only by cluster heads, thus reducing network load and alleviating the bandwidth. In this paper,...
A fundamental design issue for wireless sensor network (WSN) protocols, applications and services is to introduce energy-efficiency to extend network lifetime. In this paper, we mathematically model and optimize our proposed energy-efficient time synchronization protocol (ETSP [21]) that provides significant energy improvements over compared time-synchronization protocols, namely reference broadcast...
A principal factor in sensor network design is energy efficiency. In this work, we propose to extend the lifetime of sensor networks using appropriate choice of sensor node distribution. The key idea of our scheme is to deploy more nodes in areas of extensive energy usage. Using this scheme of sensor node distribution, we use probabilistic angular routing to route data packets from the sensor nodes...
This paper presents a distributed fermat-point range estimation strategy, which is important in the moving sensor localization applications. The fermat-point is defined as a point which minimizes the sum of distances from three sensors inside a triangle. This point is indeed at the trianglepsilas center of gravity. We solve the problems of large errors and poor performance in the bounding box algorithm...
Sink mobility has become an increasingly important requirement of various sensor network applications. Handling such mobile sink conditions brings new challenges to large-scale sensor networking. This investigation proposed a hybrid-structure routing protocol (HSRP) that combines the benefits of grid-based and cluster-based structures. Grid-based structure is designed to solve the cluster head selection...
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