WIMAX TECHNOLOGY Submitted By: Pratyush Kumar Sahu 1241016303 ECE-F 11-12-2015

Contents Introduction to WiMAX Features of WiMAX Technology Global Wireless Standards Types of WiMAX Connections WiMAX Network WiMAX vs Wi-Fi Difficulties in Implementation Problems to be solved Conclusion 11-12-2015

Introduction What is WiMAX ? 11-12-2015

What is WiMAX ? WiMAX stands for Worldwide Interoperability for Microwave Access. WiMAX is like Wi-Fi & 3G Service. It provides the range of 3G-Service with speeds in the range of Wi-Fi system. WiMAX refers to interoperable implementations of the IEEE 802.16 Wireless LAN standards certified by the WiMAX Alliance. 11-12-2015

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IEEE 802.16 standards 802.16.1 (10-66 GHz, line-of-sight, up to 134Mbit/s) 802.16.2 (minimizing interference between coexisting WMANs) 802.16a (2-11 Ghz, Mesh, non-line-of-sight) 802.16b (5-6 Ghz) 802.16c (detailed system profiles) 11-12-2015

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Features Of WiMAX WiMAX physical layer uses OFDM (orthogonal Frequency Division Multiplexing Technique, which allows resistance to multipath components The data rates can go as high as 74Mbps when used a 20MHz WiMAX supports TDM,FDM. It uses AES Technique for encryption of data. 11-12-2015

Types of WiMAX Connections Line of Sight Communication Non Line of Sight Communication 11-12-2015

WiMAX Cell Site Design One of the most important technical and business issues of any wireless technology is efficiently (cost and performance) providing coverage and capacity, while avoiding the build-out of a large number of new base stations. Path loss, shadow margin, environmental effects, and morphology are important factors when planning for an optimum coverage. The morphology and physical surroundings of a cell site play a very important role in determining the cell footprint. 11-12-2015

WiMAX Network WiMAX Base Station WiMAX Receiver WiMAX Backhaul 11-12-2015

It has a coverage area up to a radius of 6 miles. WiMAX Base Station The base station consists of a WiMAX tower similar to a cell- phone tower. It has a coverage area up to a radius of 6 miles. Any wireless compatible device within the coverage area would be able to access the Internet. The MAC layer present allocates downlink and uplink bandwidth for the subscribers according to their signal capacity and need. 11-12-2015

WiMAX Receiver It is also referred as CPE (Consumer Premises Equipment). Its work is similar to any device which read the Wi-Fi present in the area. 11-12-2015

WiMAX Backhaul The link between two different Base Stations or the link between a Base Station and the core network (generally IP network) is called Backhaul. The link between two different Base stations is generally Line of Sight communication. 11-12-2015

Difference Between WiMAX and Wi-Fi It is used for deploying Wireless Broadband Networks. It is used for deploying Wireless LAN networks. It uses 2-11 GHz frequency. It uses 2.5 GHz or 5 GHz frequency. It has an adjustable Channel Bandwidth. It has a fixed Channel Bandwidth of 25MHz. It uses Full Duplex Communication Protocol. It uses Half Duplex Communication Protocol. It uses 3DES/AES encryption. It has optional RC4 encryption. Both of them uses QPSK, BPSK modulation techniques for transmission. 11-12-2015

Distance Dependent Decay of Power Doppler Effect Spectral Scarcity Difficulties in Implementation Distance Dependent Decay of Power Doppler Effect Spectral Scarcity 11-12-2015

Problems to be Solved High Speed Data Access (~50Mbps) to end users High Quality of Service Stationary Devices-/Household Devices should get access even to remote locations Mobile Devices should get the same speed even if they are moving with high velocity. To be a successful technology it should provide better performances than current alternatives such as Wi-Fi and 3G. 11-12-2015

Conclusion WiMAX is a technology which has not been a lot of importance in the near past. Its still many-folds faster than Wi-Fi technology or 3G Technology and if implemented properly and planned according to the needs can solve the Network issue for many extreme areas. 11-12-2015

References Gerard Smyth, “Wireless Technologies and e-Learning:Bridging the Digital Divide”, Intel Corporation, December2006. M. Paolini, “Mobile WiMAX: The Best Personal Broadband Experience!” WiMAX forum, June 2006. pp. 6. White Paper,” IEEE 802.16a Standard and WiMAX Igniting Broadband Wireless Access”, WiMAX Forum. G. Cayla, S. Cohen and D. Guigon, “WiMAX an Efficient Tool to Bridge the Digital Divide,” WiMAX Forum, November, 2005, pp. 2. 11-12-2015

THANK YOU 11-12-2015