Wimax_Pres - WiMax Erum Ahsan, Ashley Arnold, Brad Fink...

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WiMax Erum Ahsan, Ashley Arnold, Brad Fink
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WiMax Introduction WiMax: Worldwide Interoperability for Microwave Access WiFi and WiMax are complementary and leverage similar IP-based technologies WiFi technology is employed in 97% of laptops; WiMax was introduced to laptops in 2008
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Discussion Points WiMax Antennas RF Circuits OFDM
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Antennas for Fixed WiMax Applications Directional antennas enhance the fade margin by adding together extra gain. This increases the link accessibility comparisons between directional and omni-directional antennas. Delay spread is further reduced by directional antennas at both the Base Station and Customer Premise Equipment (CPE). When you are using 20MHz the data rate can be high up to 74Mbps. Generally 10MHz with the TDD scheme provides 3:1 up and down link ratio. WiMax providing very good signals therefore higher data rate can be achieved with multiple antennas. Antennas are used for beam forming, space time coding etc.
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Antennas and Wave Propagation
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Link Budget Power budget, accounts for all the gains and losses that the radio wave experiences as it goes from transmitter to receiver Two paths: uplink (path from subscriber unit to base station) and downlink (path from base station to subscriber unit)
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Link Budget
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((Add More Information))
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Equipment: WiMax Receiver The receiver and antenna could be a small box or PCMCIA card (removable storage device), or they could be built into a laptop the way WiFi access is today. It is device or devices which receives the signals from
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This note was uploaded on 01/24/2012 for the course ECE 317 taught by Professor Peck,t during the Spring '08 term at University of Illinois, Urbana Champaign.

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Wimax_Pres - WiMax Erum Ahsan, Ashley Arnold, Brad Fink...

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