Abstract: The various embodiments herein provide a method and system for reducing Out of Band Radiation in Orthogonal Frequency Division Multiplexing (OFDM). The method includes transmitting a plurality of signals with a plurality of modulated symbols on each subcarrier. The method includes introducing a controlled amount of correlation among the consecutive modulated symbols across time. Further the method includes removing the controlled amount of correlation among the plurality of modulated symbols. The method also includes reducing an out of band radiation in OFDM. The system for reducing Out of Band Radiation in Orthogonal Frequency Division Multiplexing (OFDM) includes a transmitter to transmit one or more signals with a plurality of modulated symbols on each subcarrier. The system includes a transmitter with digital filters and a receiver. The receiver includes a Maximum Likelihood Sequence Detector (MLSD) to remove the controlled amount of correlation among the plurality of modulated symbols.

Abstract: The various embodiments herein provide a method and system for reducing Out of Band Radiation in Orthogonal Frequency Division Multiplexing (OFDM). The method includes transmitting a plurality of signals with a plurality of modulated symbols on each subcarrier. The method includes introducing a controlled amount of correlation among the consecutive modulated symbols across time. Further the method includes removing the controlled amount of correlation among the plurality of modulated symbols. The method also includes reducing an out of band radiation in OFDM. The system for reducing Out of Band Radiation in Orthogonal Frequency Division Multiplexing (OFDM) includes a transmitter to transmit one or more signals with a plurality of modulated symbols on each subcarrier. The system includes a transmitter with digital filters and a receiver. The receiver includes a Maximum Likelihood Sequence Detector (MLSD) to remove the controlled amount of correlation among the plurality of modulated symbols.

Abstract: In one embodiment, a system and method for receiving information over a power line in accordance with the HomePlug specification is described. The receiver side of the method involves separation of the data within a payload of an incoming frame into a plurality of blocks. Thereafter, both frame control symbols and data within the blocks are processed by Frame Control Forward Error Correction (FEC) decoding logic.

Abstract: In general, one embodiment of the invention relates to a method for detecting data bits and estimating the channel reliability of each carrier. The detection method comprises (i) computing a complex phase difference between a current symbol and a previous symbol, (ii) separating a real value component (R) from a corresponding imaginary value component (I) forming the complex phase difference, (iii) determining at least one boundary constraint line of a complex phase map for a selected demodulation scheme, and computing an arithmetic combination of the real value component and the corresponding imaginary value component to detect whether a series of bits falls within a selected region of the complex phase map defined by the at least one boundary constraint line. Over N symbols propagating over a carrier, including the current symbol and the previous symbol, the channel estimation counts a number of symbols (less than N but greater than a threshold) that fall within an estimated area of the complex phase map.

Abstract: In one embodiment, a system and method for receiving information over a power line in accordance with the HomePlug specification is described. The receiver side of the method involves separation of the data within a payload of an incoming frame into a plurality of blocks. Thereafter, both frame control symbols and data within the blocks are processed by Frame Control Forward Error Correction (FEC) decoding logic.

Abstract: In general, one embodiment of the invention relates to a method for detecting data bits and estimating the channel reliability of each carrier. The detection method comprises (i) computing a complex phase difference between a current symbol and a previous symbol, (ii) separating a real value component (R) from a corresponding imaginary value component (I) forming the complex phase difference, (iii) determining at least one boundary constraint line of a complex phase map for a selected demodulation scheme, and computing an arithmetic combination of the real value component and the corresponding imaginary value component to detect whether a series of bits falls within a selected region of the complex phase map defined by the at least one boundary constraint line. Over N symbols propagating over a carrier, including the current symbol and the previous symbol, the channel estimation counts a number of symbols (less than N but greater than a threshold) that fall within an estimated area of the complex phase map.