Title :
A transmission/equalisation procedure for mobile digital radio links using interpolated channel estimates
Author :
Cusani, Roberto ; Mattila, Jari
Author_Institution :
Dept. INFOCOM, Rome Univ., Italy
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
Keywords :
Kalman filters; digital radio; equalisers; interpolation; land mobile radio; parameter estimation; radio links; radio receivers; radio transmitters; time-varying channels; transient response; Kalman-like filter; channel impulse response; computer simulations; fast convergence properties; fast time-varying noisy digital channels; frequency-selective channels; information data sequence; interpolated channel estimates; linear interpolation; maximum likelihood sequence equaliser; mobile digital radio links; performance analysis; receiver; timeslot; training sequences; transmission/equalisation; transmitter/receiver structure; Computer simulation; Convergence; Digital communication; Frequency; Information filtering; Information filters; Maximum likelihood estimation; Performance analysis; Radio transmitters; Receivers;
Conference_Titel :
Universal Personal Communications, 1998. ICUPC '98. IEEE 1998 International Conference on
Conference_Location :
Florence
Print_ISBN :
0-7803-5106-1
DOI :
10.1109/ICUPC.1998.733692
