摘要
动态频谱接入(Dynamic Spectrum Access,DSA)技术是感知无线电的关键技术之一,由于受能量及硬件条件限制,提出了基于部分可观察马尔可夫决策过程(Partially Observable Markov Decision Processes,POMDP)的动态频谱接入模型。通过把系统建模为部分可观测马尔可夫决策过程,文章探讨了最优和降低复杂度的次优信道感知和接入策略。仿真结果表明该算法获得的信道回报要优于传统的随机接入算法。
The dynamic spectrum access（DSA）technology is one of the key technologies of cognitive radio. Due to theenergy and hardware conditions, the Dynamic Spectrum Access is proposed based on Partially Observable Markov DecisionProcess（POMDP）. Through modeling the system as a POMDP, this paper discusses the optimal and reducing complexitysuboptimal channel perception and access policy. The simulation results show that the channel return of the proposedalgorithm is superior to the traditional algorithm of random access.
出处
《江苏科技信息》
2016年第23期60-62,共3页
Jiangsu Science and Technology Information
