Abstract: An input signal has a desired signal component and an interfering signal component superimposed thereon. Interfering component estimation processing is applied to the input signal, obtaining as a result a filtered signal comprising a sequence of filtered data samples. The filtered signal is subtracted from the input signal obtaining as a result an output signal comprising a sequence of output data samples. The interfering component estimation processing applies conjugating processing to the input signal, providing a conjugated version of the input signal. An adaptive signal processing coefficient is computed and adaptive signal processing is applied to the conjugated version of the input signal using the adaptive processing coefficient.

Abstract: An input signal has a desired signal component and an interfering signal component superimposed thereon. Interfering component estimation processing is applied to the input signal, obtaining as a result a filtered signal comprising a sequence of filtered data samples. The filtered signal is subtracted from the input signal obtaining as a result an output signal comprising a sequence of output data samples. The interfering component estimation processing applies conjugating processing to the input signal, providing a conjugated version of the input signal. An adaptive signal processing coefficient is computed and adaptive signal processing is applied to the conjugated version of the input signal using the adaptive processing coefficient.

Abstract: In one embodiment, a local network device collects local optical power information for at least one of either a local optical transmit interface and a local optical receive interface of the local network device. The local network device may then exchange the local information for remote optical power information of corresponding remote optical receive and transmit interfaces of a remote network device at an opposing end of at least one corresponding optical link (fiber). For example, an exchange may use a point-to-point protocol which may dynamically determine/discover neighboring relationships between capable peer device interfaces and establish a suitable communication exchange between the capable peers. Based on the local information and exchanged remote information, the local network device may calculate an optical power loss of each corresponding optical link.

Abstract: In one embodiment, a networking device may include a network port and be configured to receive a transceiver module card in the network port. The networking device may detect whether the transceiver module card is a single channel card or a multi-channel card, where the single channel card includes a single transceiver module and the multi-channel card includes multiple transceiver modules. The networking device may transmit data to the transceiver card either as a single channel de-multiplexed over multiple lanes or as multiple independent channels corresponding to the multiple lanes based on whether the transceiver module card is the single channel card or the multi-channel card. The networking device may transmit data over each of the lanes at one data rate regardless whether of the transceiver module card is the single channel card or the multi-channel card.

Abstract: In one embodiment, a networking device may include a network port and be configured to receive a transceiver module card in the network port. The networking device may detect whether the transceiver module card is a single channel card or a multi-channel card, where the single channel card includes a single transceiver module and the multi-channel card includes multiple transceiver modules. The networking device may transmit data to the transceiver card either as a single channel de-multiplexed over multiple lanes or as multiple independent channels corresponding to the multiple lanes based on whether the transceiver module card is the single channel card or the multi-channel card. The networking device may transmit data over each of the lanes at one data rate regardless whether of the transceiver module card is the single channel card or the multi-channel card.

Abstract: In one embodiment, a local network device collects local optical power information for at least one of either a local optical transmit interface and a local optical receive interface of the local network device. The local network device may then exchange the local information for remote optical power information of corresponding remote optical receive and transmit interfaces of a remote network device at an opposing end of at least one corresponding optical link (fiber). For example, an exchange may use a point-to-point protocol which may dynamically determine/discover neighboring relationships between capable peer device interfaces and establish a suitable communication exchange between the capable peers. Based on the local information and exchanged remote information, the local network device may calculate an optical power loss of each corresponding optical link.

Abstract: The present invention provides a system and method for multiplexing DWDM channels on top existing CWDM infrastructure. An erbium-doped fiber amplifier amplifies DWDM signals in the DWDM domain to compensate for 10 G optics power budget limitations without blocking the CWDM signals. A passive WDM infrastructure allows the CWDM and DWDM signals to be multiplexed and de-multiplexed on the same fiber and allows seamless integration with existing infrastructure avoiding the need to sacrifice CWDM channels.