Performance Improvement of Triple Play Services in FTTH/BPON Using OFDM

Next generation services of triple play (data/voice/video) require far more bandwidth than prevailing technologies like dial-up, Integrated Services for Digital Network (ISDN), cable, Digital Subscriber Line (DSL) could offer. The bay between the access and metro networks is broadening due to bandwidth difference. This problem is termed as “access bottleneck”. The challenge is to distribute triple play services efficiently and cost effectively. Passive optical network has addressed these challenges in a most auspicious manner. This paper presents an architecture supporting triple play services. It employs Broadband Passive Optical Network (BPON) within last mile to address the access bottleneck issue. It uses orthogonal frequency division multiplexing (OFDM) for transmission of voice, video and data service. Performance analysis of our proposed architecture using simulation technique shows that the signal power received at the farthest Optical Network Unit (ONU) after passing through a distance of 25km is -25dBm with a satisfactory bit error rate (BER) of 10-3 and a Signal to Noise Ratio for video service, indicating good and clear picture quality. Proposed method not only accomplishes the desired requirement for availing services of data/voice/video (triple play) but also achieves its objective cost effectively.