Abstract: Multiplexing is a technique that increases channel capacity and reduces the cost of overall system. In this paper five user Absolute Polar Duty Cycle Division Multiplexing (APDCDM) is done in electrical domain. Here each user generates different RZ duty cycle pulses and data rate of 20Gbps, the 100Gbps signal is transmitted through a Standard Single Mode Fibre. It has been observed that at the signal is successfully transmitted up to 75 Km distance and Q-factor also calculated as 15dB.
Keywords: APDCDM, BER, Q-factor.