Title :
High bit-rate digital mobile radio transmission with a decision feedback equalizer
Author :
Suzuki, Hiroshi ; Ueda, Takashi ; Higashi, Akihiro
Author_Institution :
NTT Electr. Commun. Lab., Take Yokosuka, Japan
Abstract :
High bit-rate digital mobile radio transmission performance in a selective fading environment is discussed. Analysis and computer simulation show the amount of performance improvement by utilizing a preset-type decision feedback equalizer. The equalizer adopts the recursive least-squares (RLS) algorithm for tap coefficient determination. The performance is approximately analyzed by using the zero-forcing criterion. This criterion is separately applied to the minimum and nonminimum phase conditions of the two-wave selective fading model. The improved performance is almost equivalent to that of two-branch selection diversity reception. Finally, hardware implementations of a dynamic selective fading simulator and a decision feedback equalizer are demonstrated
Keywords :
digital radio systems; digital simulation; equalisers; fading; feedback; mobile radio systems; RLS algorithm; computer simulation; decision feedback equalizer; digital mobile radio transmission; dynamic selective fading simulator; high bit rate transmission; minimum phase; nonminimum phase; performance improvement; recursive least-squares; selective fading environment; tap coefficient determination; two-branch selection diversity reception; two-wave selective fading model; zero-forcing criterion; Band pass filters; Circuits; Decision feedback equalizers; Delay effects; Distortion; Fading; Frequency conversion; Land mobile radio; Performance analysis; Quadrature phase shift keying;
Conference_Titel :
Communications, 1989. ICC '89, BOSTONICC/89. Conference record. 'World Prosperity Through Communications', IEEE International Conference on
Conference_Location :
Boston, MA
DOI :
10.1109/ICC.1989.49688
