TY - GEN
T1 - On multiuser switched diversity transmission for spectrum sharing systems
AU - Qaraqe, Marwa
AU - Abdallah, Mohamed
AU - Serpedin, Erchin
AU - Alouini, Mohamed Slim
PY - 2012
Y1 - 2012
N2 - In this paper, we develop multiuser access schemes for spectrum sharing systems whereby secondary users share the spectrum with primary users. In particular, we devise two schemes for selecting the user among those that satisfy the interference constraints and achieve an acceptable signal-to-noise ratio (SNR) level. The first scheme selects the user with the maximum SNR at the receiver, whereas in the second scheme the users are scanned in a sequential manner until an acceptable user is found. In addition, we consider two power adaptive settings. In the on/off power adaptive setting, the users transmit based on whether the interference constraint is met or not while in the full power adaptive setting, the users vary their transmission power to satisfy the interference constraint. Finally, we present numerical results of our proposed algorithms where we show the trade-off between the average spectral efficiency and average feedback load of both schemes.
AB - In this paper, we develop multiuser access schemes for spectrum sharing systems whereby secondary users share the spectrum with primary users. In particular, we devise two schemes for selecting the user among those that satisfy the interference constraints and achieve an acceptable signal-to-noise ratio (SNR) level. The first scheme selects the user with the maximum SNR at the receiver, whereas in the second scheme the users are scanned in a sequential manner until an acceptable user is found. In addition, we consider two power adaptive settings. In the on/off power adaptive setting, the users transmit based on whether the interference constraint is met or not while in the full power adaptive setting, the users vary their transmission power to satisfy the interference constraint. Finally, we present numerical results of our proposed algorithms where we show the trade-off between the average spectral efficiency and average feedback load of both schemes.
KW - Multiuser Diversity
KW - Performance Analysis
KW - Spectrum Sharing
KW - Switched Diversity
UR - http://www.scopus.com/inward/record.url?scp=84869455355&partnerID=8YFLogxK
U2 - 10.4108/icst.crowncom.2012.249524
DO - 10.4108/icst.crowncom.2012.249524
M3 - Conference contribution
AN - SCOPUS:84869455355
SN - 9781936968558
T3 - Proceedings of the 2012 7th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications, CROWNCOM 2012
SP - 106
EP - 112
BT - Proceedings of the 2012 7th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications, CROWNCOM 2012
T2 - 2012 7th International ICST Conference on Cognitive Radio Oriented Wireless Ntworks and Communications, CROWNCOM 2012
Y2 - 18 June 2012 through 20 June 2012
ER -