By Topic

On the Performance of Packet ARQ Schemes in Rayleigh Fading: The Role of Receiver Channel State Information and Its Accuracy

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
$33 $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)
Le Cao ; Department of Electrical and Computer Engineering, National University of Singapore, Singapore ; Pooi-Yuen Kam

With imperfect channel state information (CSI) acquired by channel estimation at the receiver, the performance of basic automatic-repeat-request (ARQ) and hybrid ARQ (HARQ) systems is evaluated as a function of the accuracy of channel estimation. A link between data-link-layer performances and physical-layer parameters is therefore established. Upper and lower bounds on the accepted packet error rate (APER), the goodput, and the drop rate are derived. These upper and lower bounds are close to one another and therefore enable the behavior of the exact performance parameters to be investigated. The results show that the effect of the MSE on the system performance is nonlinear. At high values of the MSE, the performance very rapidly deteriorates, whereas, at low values of the MSE, the performance gently improves toward that of the perfect CSI case. The study here shows how accurate the CSI should be to achieve a specified performance level in ARQ schemes.

Published in:

IEEE Transactions on Vehicular Technology  (Volume:60 ,  Issue: 2 )