By Topic

Differentially coherent diversity combining techniques for DPSK over fast Rayleigh fading channels

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Stojanovic, M. ; Dept. of Electr. & Comput. Eng., Northeastern Univ., Boston, MA, USA ; Zvonar, Z.

The performance of differential phase-shift keying (DPSK) is considered for fading channels with nonnegligible time-variation, as well as signal or noise correlation between diversity branches. A differentially coherent maximum-ratio combiner is derived, showing optimal weight dependence on the fading statistics. The bit error rate (BER) is evaluated analytically for Rayleigh fading, and comparison is made between the optimal and the equal-gain differentially coherent combiner. The optimal combiner provides improvement in all situations, and reduces the error probability floor. Performance improvement is higher for higher Doppler spreads, with the exact amount depending on diversity correlation. For low diversity correlation, equal-gain combining performance stays close to optimal

Published in:

Vehicular Technology, IEEE Transactions on  (Volume:49 ,  Issue: 5 )