Title :
On the capacity of multi-user cognitive radio networks
Author :
Jafarian, Amin ; Vishwanath, Sriram
Author_Institution :
Dept. of Elec. & Comp. Eng., Univ. of Texas at Austin, Austin, TX, USA
fDate :
June 28 2009-July 3 2009
Abstract :
This paper studies the K > 2 user cognitive radio network. In this paper, there are one licensed transmit-receive pair and K - 1 cognitive transmit-receive pairs wishing to communicate simultaneously. For the case of a class of ¿very strong¿ interference channels, this paper shows that all users can simultaneously communicate as if all cross-channels in the interference network were absent.
Keywords :
cognitive radio; interference (signal); multi-access systems; multiuser channels; radio networks; radio receivers; radio transmitters; interference network; licensed transmit-receive pair; multiuser cognitive radio network capacity; very strong interference channel; Channel capacity; Cognitive radio; Degradation; Interference channels; Lattices; Radio transmitters; Receivers;
Conference_Titel :
Information Theory, 2009. ISIT 2009. IEEE International Symposium on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-4312-3
Electronic_ISBN :
978-1-4244-4313-0
DOI :
10.1109/ISIT.2009.5205697
