Elements of information theory
Elements of information theory
Convex Optimization
Auction-based spectrum sharing
Mobile Networks and Applications
Dynamic Spectrum Access with QoS and Interference Temperature Constraints
IEEE Transactions on Mobile Computing
Capacity and power allocation for spectrum-sharing communications in fading channels
IEEE Transactions on Wireless Communications
IEEE Transactions on Wireless Communications
IEEE Transactions on Wireless Communications
Fundamental limits of spectrum-sharing in fading environments
IEEE Transactions on Wireless Communications
Information-theoretic considerations for symmetric, cellular, multiple-access fading channels. I
IEEE Transactions on Information Theory
Capacity of fading channels with channel side information
IEEE Transactions on Information Theory
IEEE Transactions on Information Theory
Multiaccess fading channels. II. Delay-limited capacities
IEEE Transactions on Information Theory
Optimum power control over fading channels
IEEE Transactions on Information Theory
Capacity and optimal resource allocation for fading broadcast channels .I. Ergodic capacity
IEEE Transactions on Information Theory
Opportunistic beamforming using dumb antennas
IEEE Transactions on Information Theory
On the duality of Gaussian multiple-access and broadcast channels
IEEE Transactions on Information Theory
Achievable rates in cognitive radio channels
IEEE Transactions on Information Theory
On Capacity Under Receive and Spatial Spectrum-Sharing Constraints
IEEE Transactions on Information Theory
Cognitive radio: brain-empowered wireless communications
IEEE Journal on Selected Areas in Communications
Capacity limits of cognitive radio with distributed and dynamic spectral activity
IEEE Journal on Selected Areas in Communications
Joint Beamforming and Power Allocation for Multiple Access Channels in Cognitive Radio Networks
IEEE Journal on Selected Areas in Communications
IEEE Transactions on Wireless Communications
IEEE Transactions on Wireless Communications
Investigation on multiuser diversity in spectrum sharing based cognitive radio networks
IEEE Communications Letters
IEEE Transactions on Communications
Optimal power allocation for OFDM cognitive system based on dual decomposition method
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
Optimal power allocation for cognitive radio under primary users outage loss constraint
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Fading cognitive multiple access channels: outage capacity regions and optimal power allocation
IEEE Transactions on Wireless Communications
Cognitive radio protocols based on exploiting hybrid ARQ retransmissions
IEEE Transactions on Wireless Communications
Resource allocation for mitigating the effect of sensing errors in cognitive radio networks
IEEE Communications Letters
Proceedings of the 4th International Conference on Cognitive Radio and Advanced Spectrum Management
Concurrency and Computation: Practice & Experience
Performance Analysis of Cognitive Radio Multiple-Access Channels Over Dynamic Fading Environments
Wireless Personal Communications: An International Journal
A Novel Immune Optimization Algorithm for Fairness Resource Allocation in Cognitive Wireless Network
Wireless Personal Communications: An International Journal
Estimation of radio capacity of a spread spectrum cognitive radio Rayleigh fading system
Proceedings of the 17th Panhellenic Conference on Informatics
Performance of Cognitive Radios in Dynamic Fading Channels Under Primary Outage Constraint
Wireless Personal Communications: An International Journal
Hi-index | 754.84 |
This paper studies the information-theoretic limits of a secondary or cognitive radio (CR) network under spectrum sharing with an existing primary radio network. In particular, the fading cognitive multiple-access channel (C-MAC) is first studied, where multiple secondary users transmit to the secondary base station (BS) under both individual transmit-power constraints and a set of interference-power constraints each applied at one of the primary receivers. This paper considers the long-term (LT) or the short-term (ST) transmit-power constraint over the fading states at each secondary transmitter, combined with the LT or ST interference-power constraint at each primary receiver. In each case, the optimal power allocation scheme is derived for the secondary users to achieve the ergodic sum capacity of the fading C-MAC, as well as the conditions for the optimality of the dynamic time-division multiple-access (D-TDMA) scheme in the secondary network. The fading cognitive broadcast channel (C-BC) that models the downlink transmission in the secondary network is then studied under the LT/ST transmit-power constraint at the secondary BS jointly with the LT/ST interference-power constraint at each of the primary receivers. It is shown that D-TDMA is indeed optimal for achieving the ergodic sum capacity of the fading C-BC for all combinations of transmit-power and interference-power constraints.