Title :
The capacity of a three-user interference channel with a cognitive transmitter in strong interference
Author :
Kang, Myung Gil ; Choi, Wan
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
Abstract :
This paper analyzes the capacity of a three-user interference channel with a cognitive transmitter which non-causally knows the messages of the other two transmitters. Especially, We derive the capacity region when all interference channel gains are strong and show that the capacity is achieved by superposition coding. From the capacity results for the specific channel conditions, we also analyze the capacity region for three-user Gaussian interference channel with a cognitive transmitter.
Keywords :
Gaussian channels; cognitive radio; radio transmitters; radiofrequency interference; Gaussian interference channel; channel conditions; cognitive transmitter; strong interference; superposition coding; three-user interference channel capacity; Computer architecture; Decoding; Encoding; Interference channels; Microprocessors; Transmitters;
Conference_Titel :
Information Theory Proceedings (ISIT), 2012 IEEE International Symposium on
Conference_Location :
Cambridge, MA
Print_ISBN :
978-1-4673-2580-6
Electronic_ISBN :
2157-8095
DOI :
10.1109/ISIT.2012.6283593
