EC2043 WIRELESS NETWORKS UNIT I PHYSICAL AND WIRELESS MAC LAYER ALTERNATIVES PART – A (2 Marks) 1. Name five design consideration in selecting a modulation scheme for a wireless networks. 2. Why is out of band of radiation an important issue in designing modulation scheme? 3. Why is PPM used with IR communication instead of PAM? 4. Name four space diversity techniques. 5. What are the advantages of high efficiency voice band modems
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Wireless Network‚ Security and Standards With the invention of wireless network access‚ every changing 802.11 standards and wireless home network being installation in every family’s household‚ many families have so much freedom when accessing the internet‚ photos‚ music and movies. The sharing of media is a big part of everyday life but the main problem with having unlimited‚ continuous connection for sharing such media is the threats to everyday use. Simple steps should and can be taken to ensure
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AEROMAN: A Novel Architecture to Evaluate Routing Protocols for Multi-hop Ad-hoc Networks Lan Tien Nguyen School of Information Science Japan Advanced Institute of Science and Technology Email: lannt@jaist.ac.jp Razvan Beuran Hokuriku Research Center National Institute of Information and Communications Technology Email: razvan@nict.go.jp Yoichi Shinoda School of Information Science Japan Advanced Institute of Science and Technology Email: shinoda@jaist.ac.jp Abstract—In this paper‚ we
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In health care services the Wireless Body Area Network has gained much interest due to wide range of utility and vital role to improve human health. WBAN is useful technology having benefits in daily life not only for Healthcare but also for military training‚ safety‚ electronics purpose‚ and safeguarding of uniformed personnel. In our project‚ we are conducting comprehensive survey of Wireless Body Area Network (WBAN) and also introducing a Virtual Doctor Server (VDS) in existing WBAN architecture
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INTRODUCTION Wireless Integrated Network Sensors (WINS) combine sensing‚ signal processing‚ decision capability‚ and wireless networking capability in a compact‚ low power system. Compact geometry and low cost allows WINS to be embedded and distributed at a small fraction of the cost of conventional wireline sensor and actuator systems. On a local‚ wide-area scale‚ battlefield situational awareness will provide personnel health monitoring and enhance security and efficiency. Also‚ on a metropolitan
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Handbook of Wireless Networks and Mobile Computing‚ Edited by Ivan Stojmenovic ´ Copyright © 2002 John Wiley & Sons‚ Inc. ISBNs: 0-471-41902-8 (Paper); 0-471-22456-1 (Electronic) HANDBOOK OF WIRELESS NETWORKS AND MOBILE COMPUTING WILEY SERIES ON PARALLEL AND DISTRIBUTED COMPUTING Series Editor: Albert Y. Zomaya Parallel and Distributed Simulation Systems / Richard Fujimoto Surviving the Design of Microprocessor and Multimicroprocessor Systems: Lessons Learned / Veljko Milutinovic ´ Mobile
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ABSTRACT IN IEEE FORMAT ZigBee Technology Abstract - ZigBee Technology is a progression in wireless technology. Wireless is not a new technology as wireless internet are already in use; yet Zigbee technology set a new aspect in wireless technology. ZigBee is a low-cost‚ low power‚ wireless mesh network standard. The low cost allows the technology to be widely deployed in wireless control and monitoring applications. Low power-usage allows longer life with smaller batteries. This paper
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occurring at a very fast rate. An example of this can be found in the area of wireless information systems. Today‚ Computer Science‚ with regard to wireless technology‚ has significantly changed our world through advances in education‚ business and medicine. Some colleges‚ high schools and even middle schools are taking advantage of wireless technology in their classrooms. Students are issued laptop computers with wireless network cards that allow them to access the internet. These laptops can be easily
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Vehicular communication is based on wireless short-range technology that enables impulsive information interchange among vehicles and with road-side stations. A new type of network Vehicular Ad hoc Network (VANET) is available for providing alerts to the vehicles on highways. VANET is Vehicular Ad hoc Network‚ in which mobile nodes are replaced by vehicles. Whenever design issues of networks are concerned‚ the privacy and security come into the picture. Vehicular network is used to alert a driver so that
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an on and off switch to the Internet (and/or to each other).”(Morgan) In other words‚ the internet of things is the ability of interconnect everyday objects or “things” via a network. In order to exchange data that will allow for communication between these objects without the need for human input. Think‚ A biometric sensor could tell your doctor exactly how you’re feeling without the need for those drawn out “where does it hurt” conversations. Or perhaps‚ your house could monitor room temperatures
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