A transmission/equalisation strategy is proposed for frequency-selective, fast time-varying noisy digital channels. Each information data sequence is surrounded by a pair of training sequences of known symbols; these are employed by the receiver to estimate the channel impulse response (CIR) at the beginning and at the end of the timeslot, via a suitable Kalman-like filter with fast convergence properties. The CIR behavior along the data sequence is then linearly interpolated and exploited step-by-step by a maximum likelihood sequence equaliser (MLSE). A simple transmitter/receiver structure is then obtained and its performance analysed via computer simulations.
A Transmission/Equalisation Procedure for Mobile Digital Radio Links using Interpolated Channel Estimates / Cusani, Roberto; J., Mattila. - (1998), pp. 1227-1232. [10.1109/ICUPC.1998.733692]
A Transmission/Equalisation Procedure for Mobile Digital Radio Links using Interpolated Channel Estimates
CUSANI, Roberto;
1998
Abstract
A transmission/equalisation strategy is proposed for frequency-selective, fast time-varying noisy digital channels. Each information data sequence is surrounded by a pair of training sequences of known symbols; these are employed by the receiver to estimate the channel impulse response (CIR) at the beginning and at the end of the timeslot, via a suitable Kalman-like filter with fast convergence properties. The CIR behavior along the data sequence is then linearly interpolated and exploited step-by-step by a maximum likelihood sequence equaliser (MLSE). A simple transmitter/receiver structure is then obtained and its performance analysed via computer simulations.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
