Transcript WiMax
WIMAX Presented by: Palestine for Communication & IT Overview & Applications Outline Introduction WiMAX Standards WIMAX Architecture WiMAX Applications Conclusion Introduction Definition of Communications Communication is the process of transferring information from a sender to a receiver with the use of a medium. The evolution of communication Old The emerge of electricity (telegraph) in 1844. Telephone 1876. Applications telephone networks (PBX, modems, fax, ISDN, Leased line, Fram relay) Wireless communication (Mobile phone, Satellite, Bluetooth, Wi-Fi -, WiMAX) WiMAX What is WiMAX? Worldwide Interoperability for Microwave Access – Brand name for IEEE 802.16 standards WiMax Standards 802.16a 802.16d-2004 802.16e Date Completed December 2001 June 2004 December 2005 Spectrum 10-66 GHz < 11 GHz < 6 GHz Operation LOS Non-LOS Non-LOS and Mobile Data Rate 32 Mbps Up to 75 Mbps Up to 75 Mbps WiMAX Coverage Data rate Scalability Qos Coverage PAN LAN MAN WAN Bluetooth, UWB 802.11 HiperLAN2 802.16 GSM, GPRS, CDMA, 2.5-3G Speed < 1Mbps 11 to 54 Mbps Up to 75 Mbps 10 to 384Kbps Range Short Medium Medium-Long Long Device-to-Device Enterprise networks Last mile access Backhaul Mobile Phones Standards Applications Data rate Channel Bandwidth Maximum Data Rate Maximum bps/Hz 802.11 20 MHz 54 Mbps 2.7 bps/Hz 802.16 1.5 – 20 MHz 75 Mbps 3.75 bps/Hz Scalability Channel Bandwidth Duplex Support OFDM Number of users Security Support of real-time traffic Non-LOS WiMax Spectrum Unlicensed 5 GHz: bands between 5.25 and 5.85 GHz. Licensed 3.5 GHz: bands between 3.4 and 3.6 GHz Licensed 2.5 GHz: bands between 2.5 GHz and 2.6GHz. WIMAX Architecture WIMAX system consists of WiMAX Tower (Base Station): Similar in concept to a cell-phone tower – a single WiMAX BS can provide coverage to a very large area. WiMAX Receiver (Subscriber Station) The receiver could be a small box or PC card, or they could be built into a laptop. WiMAX Applications Backhaul Last mile Real-time Rural application Areas Conclusion Thank You! Conclusion Flexible Architectu re Low Cost High Capacity Scalability High Security Mobility Wide Coverage WiMAX QoS Data rates 16