Title :
Maximum-likelihood tap selection for equalization of land mobile radio channels
Author :
Sung, Wonjin ; Shin, Dong-Joon ; Kim, In-Kyung
Author_Institution :
Dept. of Electron. Eng., Sogang Univ., Seoul, South Korea
Abstract :
Mobile radio transmission channels characterized by dominating delay paths can be modelled by the linear intersymbol filter with a few significant taps. For such channels, tap-selectable equalization can be used for the receiver complexity reduction. In this paper, a maximum-likelihood method to select channel taps with significant power is presented and its error performance is analyzed. The scheme performs the CFAR (Constant False Alarm Rate) detection when the receiver noise power level is known. We give an analytic derivation of the error probability that exactly quantifies the the effect of noise power estimation
Keywords :
Rayleigh channels; delay estimation; equalisers; error statistics; filters; interference suppression; intersymbol interference; maximum likelihood detection; mobile radio; CFAR detection; Rayleigh fading channels; constant false alarm rate; delay paths; equalization; error probability; land mobile radio channels; linear intersymbol filter; maximum-likelihood tap selection; noise power estimation; receiver complexity reduction; transmission channels; Delay; Error analysis; Error probability; Land mobile radio; Maximum likelihood detection; Maximum likelihood estimation; Noise level; Nonlinear filters; Performance analysis; Receivers;
Conference_Titel :
Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-7206-9
DOI :
10.1109/GLOCOM.2001.966302
