Title :
Joint beamforming and Viterbi equalizer in wireless communications
Author :
Lagunas, Miguel A. ; Perez-Neia, A.I. ; Vidal, Josep
Author_Institution :
Univ. Politecnica Catalonia, Barcelona, Spain
Abstract :
The presence of a sequence detector in the baseline architecture for base stations for mobile communications has become a standard. Also the use of coding allows the baseband detector to work at very low signal to noise ratios. When spatial diversity is included in the front-end, the joint design of the beamformer, matched filter and the desired impulse response DIR of the Viterbi equalizer VE is mandatory. This work describes the joint design of these stages when the matched DIR response has priority in the maximization of the signal to noise plus interferences ratio at the input of the VE.
Keywords :
Viterbi detection; array signal processing; direction-of-arrival estimation; diversity reception; equalisers; filtering theory; land mobile radio; matched filters; SNR; Viterbi equalizer; base station architecture; baseband detector; coding; impulse response; joint beamforming; matched DIR response; matched filter; mobile communications; sequence detector; signal to noise plus interferences ratio; spatial diversity; very low signal to noise ratios; wireless communications; Array signal processing; Base stations; Baseband; Communication standards; Detectors; Equalizers; Mobile communication; Signal to noise ratio; Viterbi algorithm; Wireless communication;
Conference_Titel :
Signals, Systems & Computers, 1997. Conference Record of the Thirty-First Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-8186-8316-3
DOI :
10.1109/ACSSC.1997.680576