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A Two-Step Resource Allocation Algorithm in Multicarrier Based Cognitive Radio Systems
2010 / IEEE / 978-1-4244-6398-5
This item was taken from the IEEE Conference ' A Two-Step Resource Allocation Algorithm in Multicarrier Based Cognitive Radio Systems ' This paper presents a two-step downlink resource allocation algorithm for multicarrier based cognitive radio systems. The algorithm allocates the subcarriers to the users in the first step. In the second step, the power is allocated to these subcarriers in order to maximize the downlink capacity of the system without causing excessive interference to the primary user. The performance of the proposed algorithm is investigated using computer simulations to prove that it achieves near optimal performance and it is better than other existing algorithms. Moreover, the throughput of Orthogonal frequency division multiplexing (OFDM) and filter bank multicarrier system (FBMC) based cognitive radio systems are compared to show the efficiency of using FBMC in future cognitive radio systems.
Two-step Resource Allocation Algorithm
Multicarrier Based Cognitive Radio Systems
Two-step Downlink Resource Allocation Algorithm
Filter Bank Multicarrier System
Channel Bank Filters
Orthogonal Frequency Division Multiplexing