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Autumn 2000 John Kristoff 4
Transmission of Information
From Physics Energy Electromagnetic wave propogation
From Mathematics Coding Theory
Autumn 2000 John Kristoff 13
Undesirable Effects and Limitations
Propagation Delay Bandwidth Noise Interference Distortion Attenuation
Autumn 2000 John Kristoff 15
Shannons Limit
Corrects for SNR
Encoding more bits per cycle time helps, but you cannot overcome the fundamental physical limits of a real transmission system.
Autumn 2000 John Kristoff 16
Timing
Asynchronous bit level
Synchronous character level
Isochronous timing coordination must be successful
Autumn 2000 John Kristoff 21
Hubs
Repeater functionality, plus... Concentration Point Signal Distribution Device Management Functions