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.
The recent interest in Wireless Sensor Networks has led to a number of clustering algorithms that use the limited energy available at sensors more efficiently. In this article, we present a heritable clustering algorithm based on HEED for low energy wireless sensor network. It brings in appointment mechanism to reduce the cluster head reelect overhead efficiently. In the cluster, TDMA communication...
We create two Ad hoc network models to run the OLSR and analyze the performance of MPR algorithm after introducing the concept of OLSR and MPR. One modal adopts default MPR algorithm given by RFC3626, the other one optimizes the MPR algorithm by changing the parameter 'Willingness' of parts of nodes' OLSR in terms of the networks topology. The result proves that the optimized OLSR enhances the efficiency...
In this paper we focus on the concept of IEEE 802.11 DCF error frame model. Based on the analysis of the model in detail, we point out the error of the simulation algorithm of the DCF error frame model in QualNet simulation environment. Furthermore, we modify the simulation algorithm in QualNet strictly according to the specifications of the DCF error frame model. The simulation results show that...
The emerging vehicular networks will enable a variety of applications for safety, traffic efficiency and driver assistance. However, the highly dynamic connectivity between vehicles makes the vehicular ad-hoc communication especially challenging. Networked Electronic Control Units (ECUs) are increasingly being deployed in automobiles to realize various functions and Controller Area Network (CAN) is...
Because of rapid channel attenuation in lossy environment, there is a severe packet drop loss problem in wireless ad hoc networks. Though MIMO (Multi-Input Multi-Output) technology can alleviate this effect greatly, it will result in higher transmission energy depletion as using more transmit antennas. Lots of schemes have been proposed to reduce such energy cost by transmit antenna selection. However,...
Recently, Adjih proposed a source independent multipoint relay (MPR) based localized construction for small sized connected dominating set (CDS). This MPR-based CDS does not need any knowledge of global network topology, which makes it attractive to the applications in mobile adhoc networks for providing routing backbone. In this work we introduce a reverse selection heuristics and provided self-stabilization...
A mobile ad-hoc network (MANET) is a collection of mobile nodes which communicate over radio. These kinds of networks are very flexible and thus they do not require any fixed infrastructure or central administration. Therefore, mobile ad-hoc networks can be deployed easily and used as temporary communication links. The biggest challenge in these kinds of networks is to find a path between the communication...
In the present scenario, mobile communication is being widely used in the areas where infrastructure-based telecommunication systems are unavailable or to deploy one is not cost effective. However, often users suffer due to the fact that mobile devices have very low computational capability and thus are incapable of executing many applications with higher resource requirements. In a mobile adhoc network...
These wireless ad hoc sensor networks (WSNs) have received considerable academia research attention at present. The main purpose of a sensor network is information gathering and delivery. Therefore, the quantity and quality of the data delivered to the end-user is very important. The energy-constrained sensor nodes in WSNs operate on limited batteries, so it is a very important issue to use energy...
Geographic routing protocols for wireless sensor networks (WSNs) have received more attentions in recent years and greedy forwarding algorithm is a main component in geographic routing. In this paper, we investigate the forwarding criterions in greedy forwarding algorithms and present a greedy routing algorithm using a new criterion combining the characteristics of both distance-based criterion and...
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.