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Recently, research on wireless sensor networks (WSNs) has received a lot of attention because they offer an advantage of monitoring various kind of environment. The management of sensors' energy is a very important problem in wireless sensor network. Research has shown a significant contribution to increase the network lifetime and improve its performance is due to energy conservation. The goal of...
Clock synchronization significantly assists in enhancing the data quality during the data dissemination phase from sensors to the base station. The existing studies towards addressing time synchronization errors don't address the associated latent problems in it. Therefore, this paper introduces a novel technique called as LNLCS i.e. Leveraging Network Lifetime using Clock Synchronization. The technique...
In a Wireless Sensor Network (WSN), significant amount of data flows through the nodes near the sink, than the nodes away from the sink. As a result, the limited energy available with the nodes around the sink becomes a bottleneck in the performance of the WSN. The nodes in the bottleneck zone determines the lifetime of the WSN. So, there is a need to investigate the effect of the size of the bottleneck...
In emerging IoT era, Wireless Sensor Networks, aka WSNs are deployed for gathering data in various environments, in which efficient cluster routing mechanisms are deployed to prolong the network lifetime and improve the stability. Most existing studies focus on homogeneous WSNs. Some research workes achieved good performance based on the assumption of equal initial power and/or predefined ratio in...
Design and development of adaptive, scalable and energy-efficient routing protocols for Wireless Sensor Networks (WSNs) is an active area of research. Many protocols and techniques have been proposed and implemented for energy efficient routing. In this research work, we present Bio inspired Distributed Energy Efficient Clustering (B-DEEC) protocol for WSNs. It is based upon Artificial Bee Colony...
Wireless Sensor Networks is a Wireless network consists of a Base Station (BS) and more number of wireless sensors inorder to monitor temperature, pressure, motion etc., in different environment conditions. Number of sensor nodes located geographically nearer to form a group called cluster to co-operately processing the data. LEACH (Low Energy Adaptive Clustering Hierarchy) is a routing protocol for...
Wireless Sensor Network (WSN) is a collection of large number of sensors with low-power transceivers effectively used for collecting data in various applications like environmental monitoring, healthcare, civil and military applications. Efficient data transmission protocols are required to reduce transmission delay and energy of sensors to increase lifetime of sensor nodes. Recent researches in WSNs...
This paper presents a study of the optimal network design for efficient energy utilization in continuous data-gathering Wireless Sensor Networks (WSNs). We examine the problem of minimizing the network cost through the minimum number of relay-station installation. We model the network design problem as a mixed integer linear programming. Our key contribution is that the proposed model not only guarantee...
There are different Metrics for Quality of Service (QoS) in Wireless Sensor Networks (WSN) and most of them are application-dependent. One of the most important of them is the number of active nodes. Regarding the sensors redundancy, we can improve the network lifetime by activating enough number of nodes and making the others sleep. Also, proposing a method that uses the nodes energy equally can...
This paper considers a cluster-based wireless sensor network (WSN) where each sensor node takes turn to be cluster head. The main function of the cluster head is to oversee the communication within and between clusters while the remaining sensor nodes are involved in sensing of the surrounding environment. We address the sensor utilization problem where non-cluster head nodes in a cluster make decision...
In WSN, sensors near the sink have to relay the data of the nodes away from the sink and as a result they drain their energy very quickly. It result in network partitioning and can significantly limit the network lifetime. This problem is termed as hotspot problem. Recently, formation of hot spot or energy hole near the sink has emerged as a critical issue for data gathering in WSN. In this paper,...
Energy efficient transmission and bit allocation schemes are investigated in multi-source single-sink wireless sensor networks (WSN). For transmission in AWGN channels with path loss, this work shows that the overall energy consumption can be saved if each source transmits using its minimum power and cooperates with other sources in TDMA mode. From the source coding perspective, the Slepian-Wolf coding...
One of the main benefits of using Wireless Sensor Networks (WSNs) is that they can be deployed in remote locations without any prior infrastructure. Because of this nodes are normally battery powered. This limits the performance of the network. In this paper, we propose a novel method of scheduling nodes based on a user's sensing coverage requirement. Through the use of our proposed scheduling algorithm...
In this paper, we present the simulation results of the comparative investigation of the performance of the constrained flooding routing protocol (CF) based on different path loss exponents using PROWLER. Our simulation results indicate that the path loss exponent 4.10 increases the network lifetime for the CF routing protocol than the path loss exponent 3.0.
Wireless sensor network (WSN) has been wildly used in human life. Energy efficient is one of the most important issues to be considered when WSN is deployed. Within a sensor node, dynamic power management (DPM) is an effective method to extend the lifetime of WSN. In this paper, we firstly introduce the character of the redundant nodes in WSN, and discuss a novel method to decide which nodes are the...
Most of sensors in a wireless sensor network (WSN) are energy-limited. In order to prolong the network lifetime, some energy-efficient algorithms are proposed. Low Energy Adaptive Clustering Hierarchy with Deterministic Cluster-Head Selection (L-DCHS) is a well-known distributed clustering algorithm. In this paper, we propose a novel energy-efficient algorithm for wireless sensor networks (NEAW) based...
An energy-efficient data collection protocol for wireless sensor network based on tree (EEDCP-TB) is proposed in this paper. EEDCP-TB constructs data collection tree through the method of flooding avoidance and use the cascading timing scheme to allocate aggregation time in order to save node's energy; further more, this protocol introduce the node energy state parameter to meet energy balance to...
Accomplishing data collection in WSNs by mobile elements (MEs) can reduce the amount of multi-hop communications in the network, which will decrease the energy consumption of sensors and prolong network lifetime. However, this may result in unacceptable data collection latency. The problem can be alleviated by reducing the traveling distance of the MEs with a genetic algorithm (GA) implementation...
In wireless sensor networks (WSNs), gathering sensed information, transforming the information data to the base station in an energy efficient manner, and lengthening the network lifetime are important issues. Clustering is an energy efficient way that divides sensor nodes into many clusters, each of which has a cluster-head. The routing from cluster-head sensor nodes to the base station, however,...
Self-protection in WSN (wireless sensor networks) has not been deeply studied because WSN has a high rate of failure. The major concern in WSN is to maximize the networkpsilas lifetime. In this work we propose and evaluate a WSN architecture consisting of nodes grouped in cell arrays. Sensors located in arrays of directional antennas may apply strategies of self-configuration and some mechanisms to...
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