نتایج جستجو برای: wireless communications

تعداد نتایج: 173474  

Journal: :IEEE Transactions on Wireless Communications 2021

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1389

wireless sensor networks (wsns) are one of the most interesting consequences of innovations in different areas of technology including wireless and mobile communications, networking, and sensor design. these networks are considered as a class of wireless networks which are constructed by a set of sensors. a large number of applications have been proposed for wsns. besides having numerous applic...

Wireless network technology made it possible to communicate easily using the electromagnetic waves leading to removing the biggest barrier in portable communications. As these networks use the air as the communication medium which leads to face with more vulnerabilities. Wireless networks play a vital role in our life in a way that all devices ranging from local modems to organizational equipme...

Grid computing is a term referring to the combination of computer resources from multiple administrative domains to reach a common computational platform. Mobile Computing is a Generic word that introduces using of movable, handheld devices with wireless communication, for processing data. Mobile Computing focused on providing access to data, information, services and communications anywhere an...

Grid computing is a term referring to the combination of computer resources from multiple administrative domains to reach a common computational platform. Mobile Computing is a Generic word that introduces using of movable, handheld devices with wireless communication, for processing data. Mobile Computing focused on providing access to data, information, services and communications anywhere an...

2003
Maja Bystrom

The field of wireless communications has been in existence since the first humans learned to communicate. In early days of civilization humans would transmit notices of important events such as enemy invasions or royal births through the sounding of horns or the lighting of fires. While simple messages could be effectively transmitted in this manner, in order to communicate over long distances ...

2005
Andrea Goldsmith David Tse Pramod Viswanath

Wireless technology is a truly revolutionary paradigm shift, enabling multimedia communications between people and devices from any location. It also underpins exciting applications such as sensor networks, smart homes, telemedicine, and automated highways. This book provides a comprehensive introduction to the basic principles, design techniques and analytical tools of wireless communications,...

2000
Roger B. Marks Ian C. Gifford

The Internet and wireless communications networks revolutionized communications in the 1990s. The convergence of these two technologies leads naturally to the Wireless Internet. Just as standards determined the development of the Internet and of wireless cellular telephony, so will standards influence the evolution of the Wireless Internet as a social phenomenon. Both the cellular telephony ind...

2014
Rafael Lima de Carvalho Danilo S. Carvalho Priscila Machado Vieira Lima Félix Mora-Camino Felipe Maia Galvão França

This paper evaluates the WiSARD weightless model as a classification system on the problem of tracking multiple objects in realtime. Exploring the structure of this model, the proposed solution applies a re-learning stage in order to avoid interferences caused by background noise or variations in the target shape. Once the tracker finds a target at the first time, it applies only local searches...

From practical and theoretical viewpoints, performance analysis of communication systems by using information-theoretic results is important. In this paper, based on our previous work on Multiple Access Channel (MAC) and Multiple Access Relay Channel (MARC), we analyze the impact of a relay on the fundamental wireless communications concept, i.e., coverage region of MARC, as a basic model for u...

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