Resource allocation for OFDMA cognitive radios under channel uncertainty

Keyphrases

• Resource Allocation 100%
• Cognitive Radio 100%
• Orthogonal Frequency Division multiple Access (OFDMA) 100%
• Channel Uncertainty 100%
• Radio Base Stations 66%
• Optimization Problem 33%
• Resource Allocation Problem 33%
• Tight 33%
• Nonconvex 33%
• Joint Transmission 33%
• Near-optimal Solution 33%
• Subcarrier 33%
• Subcarrier Allocation 33%
• User System 33%
• Channel Gain 33%
• Finite alphabet 33%
• Second-order Cone 33%
• Lagrangian Dual 33%
• Achievable Rate 33%
• Second-order Cone Constraints 33%
• Interference Power Constraint 33%
• Transmit Power Allocation 33%
• Polyhedral Approximation 33%
• Mobile Station 33%
• Overall Optimization 33%

Engineering

• Cognitive Radio 100%
• Orthogonal Frequency Division Multiple Access 100%
• Primary User 100%
• Subcarrier 66%
• Basestation 66%
• Joints (Structural Components) 33%
• Optimisation Problem 33%
• Power Constraint 33%
• Channel Gain 33%
• Resource Allocation Problem 33%
• Achievable Rate 33%
• Mobile Station 33%