CORPORATE JOLT LECTURE FULL THROUGHPUT WIRELESS ATM Presented by : Dr. David B. Medved, President The Second IEEE Workshop on Wireless LANs October 24-25, 1996 Worcester Polytechnic Institute
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UWIN Features
Wide bandwidth DC-155 Mbps Protocol independent (no memory) Easy Interface to existing networks & methods Pioneer building to building Security - almost impossible to eavesdrop
Fade margin calculation
Loss Factor = L.F. = 10 log AB/AR [dB]
AB = Beam area ; AR = Receiver area AB ~ R2OHOV where OH =azimuth angle , OV = elevation angle , R = distance
Loss Budget = L.B. = 10 log PB/ Pt [dB]
PB = Power in the beam Pt = Threshold power
Fade Margin = F.M. = L.F. - L.B. [dB]
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UWIN for ATM 155 Mb/s
The system works on the physical layer and is
protocol transparent Applications : ATM-155, OC-3, STS-3, STM-1, SDH-1 Data Rate : 155.52 Mb/s Minimum pulse width : 6.43 ns All weather distance : 230 meters (30dB/Km attenuation) Operating range : 60 to 500 meters
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UWIN for ATM 155 Mb/s (continued)
Optical transmitter
LED Based Wavelength : 850 nm Rise & times Fall : Maximum 3.2 ns Average radiated power : 6mW F/O interface Type SC or ST Wavelength : 1300 nm or 850 nm Temperature range -20 to +50 degrees centigrade
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Beta-site test at TNN
U W I N 2 1 0 7 i n t h e A T M M ag n e t N e t w o r k
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