Title :
PLL performance of asynchronous multirate CDMA system by DPC
Author :
Lee, Sok-kyu ; Kim, Hunkee ; Klapper, Jacob ; Phatak, Dhananjay S.
Author_Institution :
Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA
Abstract :
The phase synchronization performance of a digital phase-locked loop (PLL) is investigated in wideband asynchronous multirate CDMA system. Dynamic partial correlation (DPC) is proposed to evaluate the autocorrelation of multirate cross-correlation terms and the corresponding power spectral density (PSD) in the presence of multirate multiple access interference (MMAI) and additive white gaussian noise (AWGN). The steady-state probability density function (PDF) and variance of the phase estimator error is performed by solving the first-order Fokker-Planck equation
Keywords :
AWGN; Fokker-Planck equation; code division multiple access; correlation methods; digital phase locked loops; phase estimation; radio receivers; radiofrequency interference; spread spectrum communication; synchronisation; AWGN; DPC; MMAI; PLL performance; additive white gaussian noise; asynchronous multirate CDMA system; autocorrelation; digital phase-locked loop; dynamic partial correlation; first-order Fokker-Planck equation; multirate cross-correlation terms; multirate multiple access interference; phase estimator error; phase synchronization performance; power spectral density; steady-state probability density function; wideband asynchronous multirate CDMA system; AWGN; Additive white noise; Autocorrelation; Multiaccess communication; Multiple access interference; Phase estimation; Phase locked loops; Probability density function; Steady-state; Wideband;
Conference_Titel :
EUROCOMM 2000. Information Systems for Enhanced Public Safety and Security. IEEE/AFCEA
Conference_Location :
Munich
Print_ISBN :
0-7803-6323-X
DOI :
10.1109/EURCOM.2000.874777
