论文标题
认知无线网络中的多目标通道分配
Multi-Objective Channel Allocation in Cognitive Radio Networks
论文作者
论文摘要
本文解决了认知无线电（CR）网络中的通道分配问题。 CR被认为是通过进行动态频谱管理（DSM）可显着改善频谱利用率的技术。 DSM的一个问题是由次级/CR用户使用频率通道的使用不足和/或不被主要用户使用。当主要用户不使用它们时，CR用户渴望使用它们。这些频谱频段的数量有限。这种稀缺导致CR用户发生冲突；任何CR用户使用的频段都会导致其他用户的目标功能衰减。因此，它们彼此具有破坏性作用。本文将这种冲突模型为一个新的多目标问题。帕累托集是通过多目标优化（MOO）技术（即ε-约束方法）实现的。结果表明该方法的效率。
This paper addresses the problem of channel allocation in Cognitive Radio (CR) networks. CR has been considered as a technology which improves spectrum utilization significantly by carrying out Dynamic Spectrum Management (DSM). One issue of the DSM is the using of frequency channels by secondary/CR users that are under-utilized and/or not used by primary users. CR users eager to use them when they are not used by primary users. The number of these spectrum bands is limited. This scarcity leads to conflict among CR users; As many as bands used by any CR user leads to decaying objective functions of other users. Thus, they have a destructive effect on each other. The paper models this conflict as a new multi-objective problem. Pareto set is attained via a Multi-Objective Optimization (MOO) technique, namely ε - constraint method. Results show the efficiency of the method.
