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.
In this paper our work investigates the performance of Intra-WBSN by placing the Body Node Coordinators (BNCs) at different positions in Intra-WBSN. Physiological data is collected by bio-sensor nodes and forwarded to BNC through intermediate node or forwarder. The forwarder node is selected on the basis of cost-function. Cost-function depends on the residual energy of node and path-loss between sensor...
As MANETs use wireless medium for Communication, these are susceptible to many security attacks. In this paper a methodical review is done on the recent state of the research results on wormhole attacks. The simulated results helps to quantify the comparative performances of the different solutions proposed. The various detection techniques and the types of wormhole modes like In-band Channel, High...
The directional antenna technology in wireless mesh network is used improve the spatial reuse of the wireless channel, where nodes communicate simultaneously without interference of each other. A Technology require to meet customer demands and improve the performance in WLAN 802.11. Wireless is a scalable, reliable and cost effective technology which can be used to implement 802.11 for utility maximization...
Maxwell first described the theoretical basis for the propagation of electromagnetic waves in 1873[1]. For the next 140 years we have seen tremendous developments in the area of Wireless Communications. Today, virtually everything in the world is connected by wireless technologies, whether it's on the surface of earth or in the deep space. Surprisingly, an important frontier is left out, which occupies...
Internet of things (IoT) is connected world of capabilities and services that enable interaction among physical objects supported by technologies such as sensors, RFID, wireless, mobile, cloud and internet. In this paper we analyze the drivers for IT services to use IoT and challenges involved and establish the need for accelerators. Various service applications can be built using IoT in all the verticals...
In the recent years Mobile Ad-hoc Network is emerging as a very popular technology in the wireless network. Because of its dynamic topology and its infrastructure less architecture, it is vulnerable to various types of attack. Providing security against the intruder is a challenging task in MANET. In this paper, we present the Modified Enhanced Adaptive Acknowledgment (EAACK) based Intrusion Detection...
In this paper, we consider the problem of finding optimal energy management policies in the presence of energy harvesting sources to maximize network performance. We formulate this problem in the discounted cost Markov decision process framework and apply two reinforcement learning algorithms. Prior work obtains optimal policy in the case when the conversion function mapping energy to data transmitted...
A novel design of a circular patch antenna with a square shaped defect in the ground is presented in this communication. The antenna operates in L-band and is applicable for wireless communications. Square shaped defect is introduced diagonally in the ground plane. A comparison is also presented for the antenna structures without defect and with defect. Parameters like impedance bandwidth and antenna...
The two most important objectives of the data center operators are to reduce operating cost and minimize carbon emission. Consolidation of data centers is not always possible and big enterprise end up having data centers in multiple locations across different cities and countries. In such a diverse deployment manual monitoring is not a cost effective solution. ASHRAE [1] suggested considering the...
In this paper, we present a robust transmission scheme for MPEG-4 AAC encoded audio data over fading wireless channels using Unequal Error Protection based on adaptive modulation and forward error correcting (FEC) codes. The encoded audio data is divided into three error sensitivity categories and a suitable combination of FEC and modulation order is determined for each category. The results are compared...
In this paper, we analysis and simulate the AODV and OLSR routing protocols for both Wireless Ad-hoc Network and Wireless Mesh Network. An Ad-hoc network is a collection of wireless mobile nodes dynamically forming a temporary network without the use of any existing network infrastructure or centralized administration. Wireless Mesh Networks (WMNs) have recently gained a lot of popularity due to their...
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.