TMCnet News
Wednesday - TECHtionary.com TECH-Tip – “WiMax – WiFi Gets Maxed”Wednesday - TECHtionary.com TECH-Tip – “WiMax – WiFi Gets Maxed” This TECH-Tip tutorial is available at http://www.techtionary.com 802.16 WiMax is designed for data rates up to 268 mbps each way with provisions for delivering ATM-Asynchronous Transfer Mode compatible QoS-Quality of Service, Ethernet and other services such as MPLS-Multi-Protocol Label Switching. The 802.16 MAC uses a variable length designed to increase the efficiency of the standard. Multiple MAC PDUs-Packet Data Units may be concatenated (combined) into a single burst to save PHY-PHYsical overhead. Additionally, multiple SDU-Service Data Units for the same service may be concatenated into a single MAC PDU, saving on MAC header overhead. Fragmentation allows very large SDUs to be sent as needed to guarantee the QoS-Quality of Service. Payload header suppression can be used to reduce the overhead caused by the redundant portions of SDU headers. 802.16 can use TDMA-Time Division Multiple Access (shown in the tutorial) where each data packet is assigned a unique time slot, FDMA-Frequency Division Multiple Access for both full duplex (simultaneous two-way) and half-duplex (one direction at a time) or other transmission systems. The IEEE 802.16 Air Interface Standard is designed for fixed broadband wireless access systems employing a PMP-Point-to-MultiPoint architecture for BWA-Broadband Wireless Access systems operating between FCC licensed frequencies 10 and 66 GHz-Giga Hertz and unlicensed bands in the 2-11 GHz range. Key words WiMax, MPLS, TDMA, broadband, wireless, point-to-multipoint, RF, radio frequency, WiFi, 802.16, ATM, ethernet, Intel About TECHtionary.com – 303-444-6226 TECHtionary Corporation founded in 2001 and headquartered in Boulder, Colorado is the World's First and Largest Animated (rich media) Library/Magazine on Technology. Get the analysis and more than 2,550+ FREE tutorials on data, internet, wireless, VoIP-Voice over Internet Protocol (internet telephony), PBX systems, central office switching, protocols, telephony, telecommunications, networking, routing, power systems, broadband, WiFi-Wireless Fidelity and other technologies, TECHtionary.com provides "just enough – just-in-time" critical success information. TECHtionary produces web infomercials proven to "increase revenues, decrease customer support costs and increase customer satisfaction." |