Adaptive Guard Interval and Power Allocation for OFDM-Based Cognitive Radio

Provided by: Creative Commons
Topic: Networking
Format: PDF
The function of the radio resource management module of a CR system is to evaluate the available resources and assign them to meet the Quality of Service (QoS) objectives of the Secondary User (SU), within some constraints on factors which limit the performance of the Primary User (PU). While interference mitigation to the PU spectral band from the SU's transmission, has received a lot of attention in recent literature, the novelty of the authors' paper is in considering a more realistic and effective approach of dividing the PU into sub-bands, and ensuring that the interference to each of them is below a specified threshold.

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