Transmission Media -Cont

™   Performance of Medium Three concepts are used to measure the performance of TX Media: -Throughput -Propagation Speed -Propagation Time    Throughput o    Measurement of how fast data can pass through a point

o    In other words, if we consider any point in the TX Medium as a wall through which bits pass, then throughput is the number of bits that can pass this wall in second    Propagation Speed o    Propagation speed measures the distance a signal or a bit can travel through a medium in one second o    The   propagation   speed   of   EM   signals   depend   on   the   medium   and   the frequency of the signal    Propagation Time o    Measures the time required for a signal (or a bit) to travel from one point of the TX medium to another o    The propagation time is calculated as: