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.
A healthcare monitoring system is designed which can be used in the hospitals to monitor people who need to an intensive care. This system can be implemented on many biological signals. ECG signal is selected for put in practice in this work. Since ECG signal is measured in mille volt, it needs to be amplified. Also it is a noisy signal, so it needs to be filtered. ECG acquisition part contains AD620...
Recently, the technology of Home Energy Management System (HEMS) has expanded for the purpose of reducing energy consumption. This paper presents the development of a smart plug with a wireless Zigbee sensor for measuring power consumption of electrical appliances in the HEMS. Experiments were carried out to evaluate the power consumption of a wireless sensor node in a smart plug using only Zigbee...
It is well-known that sporadic traffic will be an increasing demand in the 5G market. Obviously, bulky synchronization procedure of the current 4G LTE cellular systems is not a viable option. Transmission of control signaling and payload “in one shot” in physical layer random access channel is an interesting direction. A major challenge is to cope with highly asynchronous access as well as high carrier...
Cooperative routing is a promising technique which exploits the broadcast nature of wireless medium to enhance network performance. Sensor nodes simultaneously transmit their data on different links and utilize cooperation between nodes. In this paper, a new protocol, Co-CEStat, Cooperative Critical data transmission in Emergency for Static Wireless Body Area Networks, is proposed. The protocol utilizes...
This paper presents Incremental relay-based Co-CEStat protocol for Wireless Body Area Networks (InCo-CEStat). This protocol is proposed to enhance the performance of Cooperative Critical data transmission in Emergency for Static Wireless Body Area Networks (Co-CEStat) and Advanced Co-CEStat (ACo-CEStat). Proposed protocol utilizes the merits of both direct and cooperative transmission to achieve reliable...
Network efficiency and reliability in terms of high throughput, energy conservation, low bit error rate (BER) and reduced delay are pre-requisites for many applications in Underwater Wireless Sensor Networks (UWSNs). However, distinctive features of UWSNs like low available bandwidth, large propagation delay, highly dynamic network topology, and high error probability pose many challenges for devising...
We consider the problem of wireless multicasting through multiple-input multiple-output (MIMO) heterogeneous networks in which macro and pico base stations communicate with multiple macro and pico users, respectively. At first, we calculate the multicast capacity of macro users (MUs) and pico users (PUs), and investigate the impact of interferences on it. Then, we use zero-forcing (ZF) precoding at...
In this paper, we present a thorough characterization of the spatio-temporal communication graph of a large-scale real-world vehicle-based Delay Tolerant Network (DTN). Unlike previous studies which either use synthetic mobility traces or data from small networks (<; 50 nodes), our analysis is based on the mobility patterns of a large scale (~ 1200 nodes) real-world public transport network. In...
The paper reviews various recent developments in medical field and healthcare systems the network enabled sensors and emerging sensor networks that are being used to provide continuous non-obtrusive patient monitoring from nursing stations and emergency mobile units. We propose, design, and analyze a model system for developing countries based on various ICT and sensor networks projects and the work...
We have analyzed the effect of innovations in Nanotechnology on Wireless Sensor Networks (WSN) and have modeled Carbon Nanotube (CNT) and Micro-Electro-Mechanical Systems (MEMS) based sensor nodes. SUGAR library in MATLAB has been used to illustrate the static analysis of deflection, display the structure and to compute the displacement parameters of a cantilever beam subjected to an external force...
In this paper, a spectrally efficient protocol for cooperative transmit diversity is proposed. By allowing multiple nodes to transmit simultaneously, relaying transmission only consumes limited bandwidth resource. To facilitate the performance analysis, the lower and upper bounds of the outage probability are first developed. Then the high signal-to-noise ratio (SNR) behavior of the cooperative protocol...
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.