Title :
Speech performance of adaptive transceivers for PCN
Author :
Steele, R. ; Williams, J.E.B. ; Hanzo, L.
Abstract :
The bandwidth limitations have been determined when injecting the modulating signal only at the phase detector or at the voltage controlled oscillator of a PLL modulator. To overcome these restrictions two-point modulation can be used, where signals are injected at both points simultaneously. The effect of mismatch in the loop constants have been analysed, and results demonstrate the tolerance of mismatch in the degradation in BER performance for GMSK modulation.<>
Keywords :
minimum shift keying; modulators; phase-locked loops; BER performance; GMSK modulation; PLL modulator; digital mobile communications; loop constants; mismatch; modulating signal; optimum loop bandwidth; phase detector; phase-locked modulators; two-point modulation; voltage controlled oscillator; Minimum shift keying; Phase locked loops;
Conference_Titel :
Advanced Modulation and Channel Coding Techniques for Mobile and Personal Communications, IEE Colloquium on
Conference_Location :
London, UK
