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Adaptive channel equalization for TDMA digital cellular communications using antenna arrays

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4 Author(s)
Naguib, A.F. ; Inf. Syst. Lab., Stanford Univ., CA, USA ; Khalaj, B. ; Paulraj, A. ; Kailath, T.

Mobile radio channels can be generally characterized as a fading multipath channel with multipath spread delay that ranges from a few microseconds (μs) up to as much as 15 μs. Such large delays result in intersymbol interference which raises the need for equalization. A semi-blind maximum likelihood sequence estimation (MLSE) with an antenna array is studied as an adaptive equalization method for time division multiple access (TDMA) digital cellular systems. The MLSE is implemented using a Viterbi algorithm (VA). An antenna array is used to utilize both temporal and spatial structure in the received signal to provide the VA with the estimate of the channel impulse response necessary for it to perform MLSE

Published in:

Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on  (Volume:iv )

Date of Conference:

19-22 Apr 1994