Title :
Capacity of a class of overlay cognitive MAC radios
Author :
Chung, Goochul ; Vishwanath, Sriram
Author_Institution :
Lab. of Inf., Commun. & Networks (LINC), Univ. of Texas at Austin, Austin, TX, USA
fDate :
July 31 2011-Aug. 5 2011
Abstract :
This paper considers a class of overlay cognitive radios with three messages, referred to as overlay cognitive MAC radios. The system consists of two transmitters and receivers but three independent messages, two of which are to be decoded at one receiver while the third is destined for the other receiver. An achievable region and an outer bound for the “weak” and “strong” interference cases are presented for this channel, which are ultimately shown to match for the special class of “weak” Gaussian overlay cognitive MAC radios.
Keywords :
cognitive radio; radio receivers; radio transmitters; radiofrequency interference; Gaussian overlay cognitive MAC radios; multiple access channel; radio receivers; radio transmitters; strong interference cases; weak interference cases; Cognitive radio; Decoding; Interference channels; Markov processes; Radio transmitters; Receivers;
Conference_Titel :
Information Theory Proceedings (ISIT), 2011 IEEE International Symposium on
Conference_Location :
St. Petersburg
Print_ISBN :
978-1-4577-0596-0
Electronic_ISBN :
2157-8095
DOI :
10.1109/ISIT.2011.6033997
