Title :
Performance of π/4-shifted DQPSK cellular mobile receivers in the presence of modulator impairments and slow Rayleigh fading
Author :
Cole, Michael ; Kiasaleh, Kamran
Author_Institution :
Erik Jonsson Sch. of Eng. & Comput. Sci., Texas Univ., Dallas, TX, USA
fDate :
29 Nov-2 Dec 1993
Abstract :
In the paper, the performance of a digital mobile radio channel in the presence of modulator impairments and slow Rayleigh fading is investigated. The modulation scheme is π/4-shifted differential quadrature-phaseshift-keying (DQPSK), and the receiver is considered to be differentially coherent. The modulator impairments considered are intersymbol interference (ISI), second and third order nonlinearities, and modulator imbalance. It is shown that ISI third order harmonic nonlinearity, and slow Rayleigh fading are the main contributors to performance degradation in this arrangement
Keywords :
cellular radio; digital radio systems; fading; intersymbol interference; modulators; phase shift keying; radio receivers; radiofrequency interference; telecommunication channels; π/4-shifted DQPSK cellular mobile receivers; differential quadrature-phaseshift-keying; differentially coherent receiver; digital mobile radio channel; intersymbol interference; modulation scheme; modulator imbalance; modulator impairments; performance degradation; second order nonlinearities; slow Rayleigh fading; third order harmonic nonlinearity; AWGN; Demodulation; Fading; Harmonic distortion; Intersymbol interference; Phase modulation; Probability density function; Pulse modulation; Random variables; Rayleigh channels;
Conference_Titel :
Global Telecommunications Conference, 1993, including a Communications Theory Mini-Conference. Technical Program Conference Record, IEEE in Houston. GLOBECOM '93., IEEE
Conference_Location :
Houston, TX
Print_ISBN :
0-7803-0917-0
DOI :
10.1109/GLOCOM.1993.318107
