Title :
New digital loop for tracking π/4-DQPSK signals in digital cellular radio
Author :
Song, Jai Chul ; Kim, Hyun Woo ; Kim, Sun Hyoung
Author_Institution :
Induk Coll., Seoul, South Korea
fDate :
29 Sep-2 Oct 1996
Abstract :
We study the application of a new digital carrier tracking loop, called the AF CR loop (angular form carrier recovery loop), in digital cellular radio with π/4-DQPSK modulation. The performance evaluation was accomplished under fading and AWGN environments by computer simulation. A performance comparison was made between the AF CR loop and the digital N-phase I-Q loop in terms of the S-curve (phase detector output), acquisition characteristic and the RMS jitter characteristic
Keywords :
Gaussian channels; cellular radio; demodulation; differential phase shift keying; digital radio; fading; jitter; quadrature phase shift keying; signal detection; tracking; π/4-DQPSK signals; AWGN channel; RMS jitter characteristic; acquisition characteristic; angular form carrier recovery loop; computer simulation; demodulation; digital N-phase I-Q loop; digital carrier tracking loop; digital cellular radio; fading channel; performance evaluation; phase detector output; AWGN; Application software; Chromium; Computer simulation; Detectors; Digital modulation; Fading; Land mobile radio cellular systems; Phase detection; Tracking loops;
Conference_Titel :
Universal Personal Communications, 1996. Record., 1996 5th IEEE International Conference on
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-3300-4
DOI :
10.1109/ICUPC.1996.562670
