The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
To evaluate the reliability of WSN whose topology is clustering structure, we model the WSN as a Weighted Voting System (WVS) with unreliable links, and propose an algorithm. The algorithm is based on universal generating function technique, and two composition operators are defined to composite u-functions of member nodes, links and cluster heads. Test results shows that the proposed algorithm can...
LEACH algorithm as a classic clustering algorithm is widely used in wireless sensor networks, but not considers the number of cluster head, monitoring areas and other factors, and the network greatly huge consumption reduces the life cycle of the network. To this defects, on the basis of the optimal coverage theorem in Wang, a kind of CDE-LEACH algorithm is proposed, which pre-built data table to...
Wireless sensor networks(WSN) deploy a large number of sensor nodes in the monitoring region, collecting information which is sent to the target users by wireless means after simple treatment. As the wireless sensor nodes are usually deployed in inaccessible or high-risk areas and are in large numbers, replacing batteries becomes very difficult. The nodes are usually one-time battery-powered so there...
With the development of the Wireless Sensor Network (WSN), the number of sensor nodes in WSN is so large while one single node's resource is quite limited. One of the key goals of designing routing protocol of WSN is to reduce the energy consumption and maximize the networks' overall survival time. ICCA presents one cluster heads choosing algorithm based on the Low-Energy Adaptive Clustering Hierarchy...
To improve the energy efficiency of nodes in Wireless sensor network, A multi-hop clustering routing algorithm is presented which is based on distributed wireless sensor network, which can improve itself in the process of use according to a kind of protocol called low energy adaptive clustering hierarchy ( Low Energy Adaptive Clustering Hierarchy, LEACH).
In this work, ray based simulation approach has been used for estimating the performance of WSN with MIMO and SISO techniques. The ray based simulation should produce more accurate results than model based simulation approach because it is more close to real life environment. In addition to simulation, Markov model based analytical approach has also been adopted. The transition probabilities among...
For the weakness in the cluster head election of LEACH algorithm in Wireless Sensor Network(WSN),We propose an improved algorithm based on LEACH from point of view that regional energy balance of the network. Proposed algorithm can make the node that has more remaining energy to serve as the cluster head(CH). Meanwhile, when the sensor nodes choose the CHs, it will depend on not only the distance...
Cluster-based routing protocol is always a hot research area in wireless sensor networks. Classical LEACH protocol has many advantages in energy efficiency, data aggregation and so on, so it is widely used until now. In this paper, based on the LEACH protocol, we propose a new distance-based clustering routing protocol, LEACH-SC (LEACH-selective cluster). In LEACH-SC, a new method is used to choose...
Integration of sensors, embedded operating systems, wireless networking technology, wireless sensor networks, is a new information gathering and processing technologies, in environmental monitoring has a very good application and advantages. This paper introduced a method model based on ZigBee-technology. Depending on specific situation in environment, LEACH communication protocol was chosen. The...
Wireless sensor network is composed of hundreds of sensor nodes involving in limited energy, efficient and low-energy consuming routing algorithm is the crucial problem to the routing design. In this paper, the LEACH protocol, which is a typical clustering routing protocol, has been researched and improved based on energy, the new algorithm is different from the LEACH in the method of determining...
LEACH is one classical protocol in wireless sensor network, which is a clustering-based protocol with good performance. In this paper, an improved routing algorithm based on LEACH protocol will be proposed, which involves cluster head choosing, multi-hop routing and the building of its path. Simulation in MATLAB, an improved routing algorithm has higher energy utilizing rate, and it helps prolong...
Situations that need quick responses, just like monitor of enemy in battlefield or emergency preparedness, the quick response to large amounts of datas bring great challenges to traditional wireless sensor network routing protocol. Most of the routing protocols use a static cluster head node to collect datas from the entire network, resulting in large communication capacity around the cluster head...
Leach protocol is single-hop without considering the location information and the remaining energy. Besides, the energy balance of network can be influenced by some unreasonable random cluster head selection, which will reduce the life time of the network. Based on LEACH, this paper proposes a Recluster-LEACH protocol based on node density, which considers the density of nodes inside the cluster and...
Clustering is a widely discussed as an important architecture for data centric wireless sensor networks. Low energy adaptive clustering hierarchy (LEACH), proposed in past, is used as benchmark scheme by many proposals and its performance is widely studied in the literature, over last few years. The probabilistic and randomized clusterhead selection strategy results in variable number of clusterheads...
Considering extremely limited energy of sensor nodes, how to utilize energy of the sensor nodes effectively to prolong survival time of wireless sensor network (WSN) is crucial. Aiming at monitoring application in particular regions, residual energy and distance constraint condition between cluster heads are taken into consideration. A new wireless sensor network clustering algorithm (EDL, Energy...
Power consumption is the main challenges of expanding the network, since the active nodes are more vulnerable to energy consumption. This paper proposes the tasks scheduling and distribution energy management mechanism of roles dormant cells (SRDC) to curb excessive consumption of energy consumed in the performance of duplicates task and unhelpful. Experimental results verify that the proposed of...
Clustering is an effective approach to enhance performance in large-scale wireless sensor networks. SMCA (small-world model based clustering algorithm), a new clustering algorithm for wireless sensor networks is proposed in this paper, with high clustering coefficient and fault-tolerant properties. SMCA selectively remove some links in a virtual way by the analysis of the edges' clustering coefficient...
The application of wireless sensor network (WSN) is always restricted by the energy shortage of sensor nodes. In order to reduce the entire energy consumption of the WSN, a promising approach is to design light clustering algorithms. LEACH is such a well-known clustering algorithm that was designed to distribute the energy consumption to nodes in the WSN evenly. LEACH is characterized by its attractive...
Sensor webs consisting of nodes with limited battery power and wireless communication capability are deployed to collect useful information from an environment. Gathering sensed information in an energy efficient manner is critical to operate the sensor network for a long period of time. In [W. Heinzelman et al., 2000] a data collection problem is defined where each sensor node has a packet to be...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.