Patent ID: 7012953
Filing Date: 2006-03-14
Classification: H04L

Abstract:
1. A method of data transmission and reception over a transmission channel at high spectral efficiency, comprising steps of: segmenting the transmission channel into a plurality of sub channels; allocating bits of the data transmission to the sub channels based on the existing noise distribution; segmenting of bits in each of the sub channels to orthogonal prolate pulses; generating symbols from the prolate pulses and modulating the symbols; transmitting the symbols in a transmission channel connected to a receiving mechanism; demodulating received signals of each sub channel at the receiving mechanism; filtering the demodulated symbols to recover transmitted symbols; recreating an original data signal by mapping the recovered symbols into bits; reconstructing the originally transmitted data from the mapped bits; and constructing the data transmission to be transmitted over the transmission channel with a form according to where I t is a time variable and x