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The Challenges of Data Transmission toward Tbps Line rate in DWDM System for Long haul Transmission
1. Introduction Since the late 1990, the transport capacities of ultra-long haul and long haul optical fiber communication systems has been significantly increased by the introduction of EDFA (Erbium Dropped Fiber Amplifier), DWDM, DCM (Dispersion Compensation Module), and FEC (Forward Error Correction) technologies. By utilizing these technologies, the universal on/off-keying (OOK) modulation along with direct […]
GPON vs. EPON Costs Comparison
GPON and EPON Technology Comparison The key factor for determine FTTH network cost is understand the performance characteristics of the PON tecnology. because The PON upstream/downstream bandwidth, bandwidth efficiency and the splitting ratio will affect it. the following table have a brief comparison about the GPON and EPON technology. detailed comparison please read our blog: […]
IPTV Home Applications and Services
Some key applications for initial IPTV deployment are the delivery of digital broadcast television and userselected video on Demand (VoD). These applications enable service providers to begin offering the “triple play” – video, voice and data. Additional video applications, which can be enabled after the IPTV infrastructure is in place, are also mentioned below. Some […]