Title :
An overlay architecture for cognitive radio systems
Author :
Vameghestahbanati, M. ; Mir, Hasan S. ; El-Tarhuni, M.
Author_Institution :
Dept. of Electr. Eng., American Univ. of Sharjah, Sharjah, United Arab Emirates
Abstract :
In this paper, we examine joint optimization of the transmitter/receiver pulse shaping filter of an overlay cognitive wireless system that allows both the overlay (new) and the legacy (existing) users to share the spectrum at the same time without the need of sensing the spectrum. The composite sum of the mean-squared error (MSE) of the overlay system and the excess MSE in the legacy system due to the presence of the overlay system is used as figure of merit. The effect of varying the overlay transmitter power along with the amount of overlap between the overlay and the legacy users are investigated.
Keywords :
cognitive radio; mean square error methods; optimisation; radio receivers; radio transmitters; MSE; cognitive radio systems; figure of merit; joint optimization; legacy users; mean-squared error; overlay cognitive wireless system; overlay transmitter; transmitter-receiver pulse shaping filter; Aging; Cognitive radio; Interference; Optimization; Radio transmitters; Receivers; Cognitive radio (CR); Mean square error (MSE); crosstalk; overlay system;
Conference_Titel :
Communications, Signal Processing, and their Applications (ICCSPA), 2013 1st International Conference on
Conference_Location :
Sharjah
Print_ISBN :
978-1-4673-2820-3
DOI :
10.1109/ICCSPA.2013.6487243
