Title :
Singular value analysis of space-time equalization in the GSM mobile system
Author :
Van der Veen, Alle-Jan ; Paulraj, Arogyaswami
Author_Institution :
Dept. of Electr. Eng., Delft Univ. of Technol., Netherlands
Abstract :
Singular value analysis of a GMSK-modulated signal such as employed by GSM reveals that it admits a reasonably accurate linear model, enabling the use of linear space-time equalizers to retrieve the data symbols. The analysis also shows that one antenna does not provide sufficient resolution to allow estimation of the channel length, so that the performance of the equalizers is limited. An algorithm is proposed for the blind space-time equalization and separation of multiple co-channel GMSK signals, based on their fixed symbol rate, finite alphabet and constant modulus properties
Keywords :
array signal processing; cellular radio; equalisers; minimum shift keying; parameter estimation; signal resolution; singular value decomposition; telecommunication channels; GMSK modulated signal; GSM mobile system; algorithm; antenna; blind space-time equalization; channel length estimation; constant modulus properties; data symbols; equalisers performance; finite alphabet; fixed symbol rate; linear model; linear space-time equalizers; multiple cochannel GMSK signals separation; singular value analysis; singular value decomposition; Blind equalizers; Data engineering; Data models; Finite impulse response filter; GSM; Information systems; Laboratories; Pulse modulation; Signal resolution; Space technology;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3192-3
DOI :
10.1109/ICASSP.1996.543549
