Title :
Effects of time delay spread on constantpower constant-symbol-rate adaptive qam
Author :
Shan, X.-H. ; Bi, G.-G.
Author_Institution :
Nat. Mobile Commun. Res. Lab, Southeast Univ., Nanjing
Abstract :
Average throughput and bit error rate (BER) are derived for constant-power adaptive quadrature amplitude modulation over frequency selective fading channels corrupted by ISI and Gaussian noise. Effects of time delay spread on average throughput are studied under different BER constraints. Results show that useful performance can be achieved without diversity or equalisation
Keywords :
Gaussian noise; Rayleigh channels; delays; error statistics; intersymbol interference; quadrature amplitude modulation; BER constraints; Gaussian noise; ISI; adaptive QAM; adaptive quadrature amplitude modulation; constant- power QAM; constant-symbol-rate QAM; frequency selective fading channels; time delay spread;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20062299
