TY - GEN
T1 - Location-based resource allocation for OFDMA cognitive radio systems
AU - Nam, Haewoon
AU - Ben Ghorbel, Mahdi
AU - Alouini, Mohamed-Slim
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2010
Y1 - 2010
N2 - In cognitive radio systems, in order for the secondary users to opportunistically share the spectrum without interfering the primary users, an accurate spectrum measurement and a precise estimation of the interference at the primary users are necessary but are challenging tasks. Since it is impractical in cognitive radio systems to assume that the channel state information of the interference link is available at the cognitive transmitter, the interference at the primary users is hard to be estimated accurately. This paper introduces a resource allocation algorithm for OFDMA-based cognitive radio systems, which utilizes location information of the primary and secondary users instead of the channel state information of the interference link. Simulation results show that it is indeed effective to incorporate location information into resource allocation so that a near-optimal capacity is achieved.
AB - In cognitive radio systems, in order for the secondary users to opportunistically share the spectrum without interfering the primary users, an accurate spectrum measurement and a precise estimation of the interference at the primary users are necessary but are challenging tasks. Since it is impractical in cognitive radio systems to assume that the channel state information of the interference link is available at the cognitive transmitter, the interference at the primary users is hard to be estimated accurately. This paper introduces a resource allocation algorithm for OFDMA-based cognitive radio systems, which utilizes location information of the primary and secondary users instead of the channel state information of the interference link. Simulation results show that it is indeed effective to incorporate location information into resource allocation so that a near-optimal capacity is achieved.
UR - http://hdl.handle.net/10754/564248
UR - http://eudl.eu/doi/10.4108/ICST.CROWNCOM2010.9154
UR - http://www.scopus.com/inward/record.url?scp=77958187107&partnerID=8YFLogxK
U2 - 10.4108/ICST.CROWNCOM2010.9154
DO - 10.4108/ICST.CROWNCOM2010.9154
M3 - Conference contribution
SN - 9781424458868
BT - Proceedings of the 5th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications
PB - European Alliance for Innovation n.o.
ER -