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WiMAX for Broadband Wireless Access
Presented By:
Karim M. El Defrawy
ICS
UCI-2005
Outline
What is WiMAX
802.16 Introduction
802.16 MAC Highlights
802.16 Reference Model
MAC Convergence Sub-Layer (CS)
MAC Common Part Sub-Layer (CPS)
MAC Privacy Sub-Layer (PS)
Questions
What is WiMAX?
Worldwide Interoperability for Microwave Access (WiMAX) is the common name associated to the IEEE 802.16a/REVd/e

standards.

These standards are issued by the IEEE 802.16 subgroup that originally covered the Wireless Local Loop technol ....etc

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Wireless communication has experienced tremendous growth in the last decade. High data rate wireless communication is becoming increasingly important to mobile users in corporate and public networks in the indoor environment. Although voice and low data rate services were the first applications of cellular networks, the focus in recent years has shifted to very high-bandwidth delivery, which is a key driver for system and network design. While wireless local area (WLAN) access is important for data applications, mobile users still expect reliab ....etc

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Presented By:

Swapna

Chapter-1
Broadband Access Alternatives

Broadband access and services are delivered using a variety of technologies, network architectures and transmission methods. The most significant broadband technologies include:
¢ Digital Subscriber Line (DSL)
¢ Fiber Technologies
¢ Coaxial Cable
¢ Wireless
¢ BPL (Broadband Over Power Lines)
The following is a brief description of each of the above referenced access technology.

1.1 Digital Subscriber Line (DSL) - Bro ....etc

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WiMAX: The Innovative Broadband Wireless Access Technology




INTRODUCTION

Telecommunications has grown at a tremendous rate in
the last ten to twenty years. Improved semiconductor and
electronics manufacturing technology, and the growth of
the internet and mobile telecommunications have been
some of the factors which have fueled this growth in
telecommunications. The deployment of state of the art
telecommunications infrastructure and services has
ho ....etc

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A Broadband and High-Gain Metamaterial Microstrip Antenna


Resultant Direct and Indirect Publications
Resulted in from the supported Projects: AOARD-07-4024 and AOARD-09-4069, the fol-
lowing research papers were published:
• Le-Wei Li, Ya-Nan Li, Tat-Soon, Yeo, Juan R. Mosig and Olivier J.F. Martin, “A
Broadband and High-gain Metamaterial Microstrip Antenna,” Applied Physics Letters,
vol.96, no. 6, 164101, April 2010


Background Introduction
A ....etc

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WiMAX: Broadband Wireless Access

What is WiMax?
WiMAX (Worldwide Interoperability for Microwave Access) is a communication technology for wirelessly delivering high-speed Internet service to large geographical areas.
It is built on IEEE 802.16 standards
It is a new standard developed by the IEEE that focuses on point to multipoint broadband wireless networks.
Wi Max is both faster and has a longer range than
Wi-Fi.
It represents the next
generation 4G technology
Technological Details
R ....etc

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Abstract
IEEE 802.16 standard and WiMAX (Worldwide Interoperability of Microwave Access) will standardize and promote wireless broadband as a wireless alternative to digital subscriber line (DSL) and cable that can help remove barriers to broadband access by providing last mile connectivity. The standard reduces costs, improves security, throughput and makes the connection more exible and scalable. WiMAX operates using a base station and a subscriber station with the base station controlling access within a cell. WiMAX could als ....etc

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BROADBAND ACCESS USING WIRELESS OVER MULTIMODE FIBRE SYSTEMS


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ABSTRACT

This paper presents a scheme for designing a kind of wireless charging system aimed to provide power transmission for personal mobile devices such as cell phone. This scheme consists of three parts: wireless power transmission design, wireless signal transmission design and charging manage design. A circular array consisting of some antenna elements is employed in the scheme as transmit access of power and signal. In the supposed indoor condition, the transfer efficiency can up to 66%. The charging manage adopt a close-loop optimal ....etc

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