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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Data Transport in Wireless Networks Akinniyi Ojo‚ Alireza Ranjbar‚ Bastian Arjun Shajit‚ Behzad Savabi‚ Misikir Gebrehiwot‚ Robin Babujee Jerome‚ Setareh Roshan‚ Swapnil Pande Department of Communication Engineering‚ Aalto University School of Electrical Engineering‚ Espoo‚ Finland Abstract— The popularity of wireless networks used to access the Internet is increasing immensely. With huge advancements in the field of wireless technology‚ the Internet has slowly moved from a traditional wired
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Abstract The Third-Generation (3G) wireless technologies offer wireless web‚ SMS‚ MMS‚ EDGE‚ WCDMA‚ GPRS etc. 4G is a packet switched technology‚ uses bandwidth much more efficiently‚ allowing each user ’s packets to compete for available bandwidth. It solves the non-standardization problems associated with 3G. Data transfer rate will be 20 to 100 Mbps‚ which is 10 to 50 times than 3G and 10-20 times faster than ADSL. Operating frequency range will be 3 to 10 GHz and the IPv6 protocol will be
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Wireless Local Area Network Background The first wireless computer communication network ALOHAnet (operational in 1971) was developed by Norman Abramson‚ a professor at the University of Hawaii. At first‚ the wireless LAN was so costly that it was just used as an alternative to the places where the cabling was difficult or impossible. Recent developments included industry specific solutions and proprietary protocols‚ but were replaced by various versions of IEEE 802.11. In 2009‚ 802.11
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Abstract This paper will discuss the Wireless Ethernet product produced by Cisco‚ the Aironet 3500 wireless access point. The Aironet 3500 access points are designed for installation into areas of wireless frequency saturation. They are an ideal solution for businesses‚ hospitals and universities plagued by interference devices such as microwave ovens‚ rogue devices such as phones and digital tablets. Universities can take advantage of the technology by deploying the APs on dorm floors knowing
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WIRELESS SENSOR NETWORKS TERM PAPER SUBMITTED TO: SUBMITTED BY: Mr. VIVEK SINGH KUSHWAH M.SWAMY SEKHAR (Asst. Professor & Coordinator) B.TECH (E.C.E) ECE ROLL NO. 21 TABLE OF CONTENTS s.no | TOPIC | Pg.No | 1. | ABSTRACT | 3 | 2. |
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Advantages of Wireless Networks in a Hospital Jeffrey Rader When healthcare adapted to wireless networks‚ it provided so many efficient ways of promoting a greater care for the patient. Although having some drawbacks with the technology‚ which will be discussed later in this writing. The combination of wireless and healthcare can provide many advances and solve many issues that have plagued the field in the past. Effectiveness of wireless networks allows the nurse and doctor to send a prescription
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1 Connecting Through a Wireless Network Case Project 6-1: Designing a Wireless Network for Roaming Team Members Thomas Jefferson Community College uses a team approach for managing the financial resources of the college. The team members primarily work in the administration building‚ which houses for the president’s office‚ human resources‚ payroll‚ accounting‚ development‚ and the main IT office. Each area uses team and team members who are often mobile‚ going between work areas. For
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Routing in Wireless Sensor Networks: application on Fire Detection Abstract: this paper is about fire detection in building using a modified APTEEN routing protocol. Here we design a system called iFireControl which is a smart detection system for buildings‚ which is more water efficient than many current systems‚ while keeping its robustness. introduction A Wireless Sensor network (WSN) consists of spatially distributed autonomous sensors to monitor physical or environmental conditions‚
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4G Wireless Networks By Ja’Kedrick Pearson Professor Darlene Ringhand CIS 500 February 03‚ 2013 4G Wireless Networks Mobile phones have become a crucial part of our daily life nowadays. Everyone‚ from teenagers to old men‚ carry a personal cell phone. They are a vital part of today’s on-demand‚ on-the-go society. Mobile phones today have changed dramatically from the mobile phones of the past. From the huge brick-like mobile phones of 1995 to sleek and stylish smartphones we
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