TY - GEN
T1 - On the capacity of cognitive radios in multiple access networks
AU - Somekh-Baruch, Anelia
AU - Sridharan, Sriram
AU - Vishwanath, Sriram
AU - Verdú, Sergio
AU - Shamai, Shlomo
PY - 2008
Y1 - 2008
N2 - This paper analyzes the fundamental limits of performance of cognitive radios in a multiple access setting. In the traditional information theoretic model for cognitive radio channel, there is a primary and cognitive transmitter-receiver pair, and the cognitive transmitter knows the message transmitted by the primary transmitter. In the multiple access setting, the primary network is an uplink system with multiple transmitters communicating with the primary receiver with the cognitive transmitter having access to the messages of all the transmitters. This paper analyzes a system where two primary transmitters communicate with a primary receiver in the presence of a cognitive transmitter-receiver pair. The capacity region of this system is derived when the channel gain from the cognitive transmitter to the primary receiver is weak.
AB - This paper analyzes the fundamental limits of performance of cognitive radios in a multiple access setting. In the traditional information theoretic model for cognitive radio channel, there is a primary and cognitive transmitter-receiver pair, and the cognitive transmitter knows the message transmitted by the primary transmitter. In the multiple access setting, the primary network is an uplink system with multiple transmitters communicating with the primary receiver with the cognitive transmitter having access to the messages of all the transmitters. This paper analyzes a system where two primary transmitters communicate with a primary receiver in the presence of a cognitive transmitter-receiver pair. The capacity region of this system is derived when the channel gain from the cognitive transmitter to the primary receiver is weak.
UR - http://www.scopus.com/inward/record.url?scp=70349705767&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70349705767&partnerID=8YFLogxK
U2 - 10.1109/ACSSC.2008.5074497
DO - 10.1109/ACSSC.2008.5074497
M3 - Conference contribution
AN - SCOPUS:70349705767
SN - 9781424429417
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 695
EP - 700
BT - 2008 42nd Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2008
PB - IEEE Computer Society
T2 - 2008 42nd Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2008
Y2 - 26 October 2008 through 29 October 2008
ER -