Hypotheses generation based on multidimensional slicing

摘要

A receiver is configured to receive a sample of an inter-symbol correlated (ISC) signal, the sample corresponding to a time instant when phase and/or amplitude of the ISC signal is a result of correlation among a plurality of symbols of a transmitted symbol sequence. The receiver may linearize the sample of the ISC signal. The receiver may calculate a residual signal value based on the linearized sample of the ISC signal. The receiver may generate an estimate of one or more of said plurality of symbols based on the residual signal value. The linearization may comprise applying an estimate of an inverse of a non-linear model. The non-linear model may be a model of nonlinearity experienced by the ISC signal in a transmitter from which the ISC signal originated, in a channel through which the ISC signal passed en route to the receiver, and/or in a front-end of the receiver.

主权项

1. A system comprising:
a receiver configured to:
receive a sample of an inter-symbol correlated (ISC) signal, said sample corresponding to a time instant when phase and/or amplitude of said ISC signal is a result of correlation among a plurality of symbols of a transmitted symbol sequence;linearize said sample of said ISC signal;calculate a residual signal value based on said linearized sample of said ISC signal; andgenerate an estimate of one or more of said plurality of symbols based on said residual signal value, wherein:said receiver is configured to generate one or more branch vector hypotheses based on said residual signal value;each of said one or more hypotheses comprises a plurality of symbols;said receiver is configured to generate said estimate of said one or more of said plurality of symbols based on said one or more branch vector hypotheses; anda quantity of branch vector hypotheses in said one or more branch vector hypotheses is determined per sample of said ISC signal such that different quantities of branch vectors hypotheses may be generated for consecutive samples of said ISC signal.