TY - GEN
T1 - Optimal stochastic dual resource allocation for cognitive radios based on quantized CSI
AU - Marques, Antonio G.
AU - Wang, Xin
AU - Giannakis, Georgios B.
PY - 2008
Y1 - 2008
N2 - The present paper deals with dynamic resource management based on quantized channel state information (CSI) for multi-carrier cognitive radio networks comprising primary and secondary wireless users. For each subcarrier, users rely on adaptive modulation, coding and power modes that they select in accordance with the limited-rate feedback they receive from the access point. The access point uses CSI to maximize the sum of generic concave utilities of the individual average rates in the network while respecting rate and power constraints on the primary and secondary users. Using a stochastic dual approach, optimum dual prices are found to optimally allocate resources across users per channel realization without requiring knowledge of the channel distribution.
AB - The present paper deals with dynamic resource management based on quantized channel state information (CSI) for multi-carrier cognitive radio networks comprising primary and secondary wireless users. For each subcarrier, users rely on adaptive modulation, coding and power modes that they select in accordance with the limited-rate feedback they receive from the access point. The access point uses CSI to maximize the sum of generic concave utilities of the individual average rates in the network while respecting rate and power constraints on the primary and secondary users. Using a stochastic dual approach, optimum dual prices are found to optimally allocate resources across users per channel realization without requiring knowledge of the channel distribution.
KW - Multiuser channels
KW - Optimization methods
KW - Quantization
KW - Resource management
KW - Stochastic approximation
UR - http://www.scopus.com/inward/record.url?scp=51449117823&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=51449117823&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2008.4518231
DO - 10.1109/ICASSP.2008.4518231
M3 - Conference contribution
AN - SCOPUS:51449117823
SN - 1424414849
SN - 9781424414840
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 2801
EP - 2804
BT - 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
T2 - 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
Y2 - 31 March 2008 through 4 April 2008
ER -