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Resource Allocation in Cognitive OFDM System Based on Knapsack Problem
Author(s): 
Pages: 160-162,170
Year: Issue:  23
Journal: Video Engineering

Keyword:  cognitive radioresource allocationmultidimensional 0-1 knapsack problemQoS;
Abstract: 针对多用户的OFDM认知无线电系统,提出了基于背包模型的资源分配新算法.该算法以最大化系统容量为目标,同时考虑各认知用户的QoS需求,将资源分配问题建模为多维0-1背包模型,并通过贪婪算法对其进行求解.仿真对比结果表明,该算法在性能上不仅逼近优化算法,而且具有较低的复杂度.
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