一种基于对等协作的动态频谱分配算法

随着无线多媒体技术的发展,优质频谱资源越来越稀缺.针对频谱稀缺和频谱共享问题,提出了一种基于对等协作的动态频谱共享算法.运营商将自己的授权频谱资源部分或全部放入共享频谱池,并根据节点感知到的频谱的使用状况,平等分配该频谱池中的所有资源.仿真结果表明,所提的对等协作方案在运营商间没有信息交互的情况下,网络性能明显优于静态频谱分配方案,并且非常接近运营商间完全信息交互的频谱共享方案.

A Dynamic Spectrum Allocation Algorithm Based on Equality and Collaboration

With the development of wireless multimedia technology, high-quality spectrum resources are increasingly scarce. To solve the spectrum scarcity and sharing problem and improve the spectrum efficiency, we propose a Dynamic Spectrum Sharing scheme in this thesis, in which a Co-primary spectrum algorithm is presented to help Operators share their licensed spectrum. The Operators share their spectrum resource into a spectrum pool and they are equal to reuse the resource of the spectrum pool, according to the usage of the spectrum which nodes have perceived. The simulation results show that the proposed scheme is better than fixed spectrum management and the performance is close to the fully information exchanging algorithm when the Operators share no information exchange