Abstract: A method includes determining a first subset of a set of optical channels, wherein each channel of the first subset has a bit error ratio (BER) greater than each channel of a remaining subset of the channels. A second subset of the set of optical channels is determined, wherein each channel of the second subset has a BER less than each channel of the remaining subset of the channels. Input power level (P) and/or dispersion compensation (D) of one or more of the channels of the first subset is adjusted, thereby reducing an aggregate BER of the first subset. P and/or D of one or more of the channels of the second subset is adjusted, thereby increasing an aggregate BER of the second subset. A reduction of an aggregate BER of the set of optical channels results from the adjusting of the first and second subsets.

Abstract: An access node (e.g., DSLAM) is described herein which can limit bandwidth usage in a transport network by incorporating an enhanced rapid TV channel changing functionality/enhanced BTV server in which TV channels from a multicast TV stream are dynamically selected based on past TV channel clicking statistics and then stored therein so there is a good chance that it can respond to a TV channel change request from a STB.

Abstract: A method for intrusion detection in an optical fiber communication network. The method includes at a first location on an optical fiber segment, receiving a set of multiple optical signals having wavelengths differing from each other, measuring received signal power for each of the received multiple optical signals, and repeating the receiving and the measuring steps. Each optical signal in the repeated steps has same wavelength as corresponding received optical signal in the initial steps. The method further includes computing a signal power loss between each received optical signal in the repeated set and the corresponding optical signal in the initial set, fitting a curve of signal power loss vs. wavelength to the computed signal power losses using a statistical analysis, and if the signal power loss of the curve over a preselected wavelength band is at least as great as a preselected minimum loss level, providing intrusion notification.

Abstract: An access node (e.g., DSLAM) is described herein which can limit bandwidth usage in a transport network by incorporating an enhanced rapid TV channel changing functionality/enhanced BTV server in which TV channels from a multicast TV stream are dynamically selected based on past TV channel clicking statistics and then stored therein so there is a good chance that it can respond to a TV channel change request from a STB.

Abstract: A system, method, and computer readable medium for traffic dimensioning in a metro area with Internet Protocol Television (IPTV) architecture that comprises calculating video on demand traffic, calculating instant channel change traffic, calculating broadband television traffic, calculating picture-in-picture traffic, calculating voice over internet protocol (VoIP) traffic, calculating high speed Internet traffic, and calculating total traffic as a summation of the calculated video on demand traffic, the calculated instant channel change traffic, the calculated broadband television traffic, the calculated picture-in-picture traffic, the calculated VoIP traffic and the calculated high speed Internet traffic.