Title :
Comparison of nonlinear cancellation techniques for quadrature amplitude modulation systems [digital microwave radio]
Author_Institution :
AT&T Bell Lab., North Andover, MA, USA
Abstract :
A study was conducted to improve the time efficiency and ease of the nonlinearity adjustment in the digital microwave radio transmitter. This led to the development of a technique using the full spectrum of the digital radio channel. This technique is compared to the three-tone and notch (noise-load) techniques in terms of bit error rate (BER) performance, ease of adjustment, and operational convenience
Keywords :
amplitude modulation; digital communication systems; microwave links; radiocommunication; QAM; bit error rate; digital microwave radio transmitter; nonlinear cancellation techniques; operational convenience; quadrature amplitude modulation systems; time efficiency; Bit error rate; Laboratories; Measurement techniques; Microwave theory and techniques; Nonlinear equations; Predistortion; Quadrature amplitude modulation; Radio transmitters; Signal generators; Transfer functions;
Conference_Titel :
Communications, 1988. ICC '88. Digital Technology - Spanning the Universe. Conference Record., IEEE International Conference on
Conference_Location :
Philadelphia, PA
DOI :
10.1109/ICC.1988.13611
