光学精密工程2017，Vol.25Issue(6)：1587-1596,10.DOI:10.3788/OPE.20172506.1587
主用户移动场景下的感知用户时间分配算法
Research on cognitive user's time allocation algorithm on the mobile scene of primary users
摘要
Abstract
Traditional cognitive radio techniques mainly aim at the primary user and cognitive user in static.For the past few tears,the research on the mobility of the user has become a hot research topic,the cognitive network is widely used in multimedia access technology,and the protocols of multimedia access technology are mostly based on the allocation of time.This paper focuses on time allocation method of cognitive users under mobile scenarios of primary users.In this paper,we firstly construct the time distribution model of the primary user in and out of the interference region of the cognitive radio network.From the view of the user''s movement,the available transmission time for a single user and the problem of sensing time threshold are put forward.Secondly,Because of the mobility of the primary users,the sensing accurate of spectrum sensing algorithm would not be improved although using the longer sensing time.In order to give the time parameter design method of the application,especially for the random walk model which is most commonly used,a single user''s optimal transmission time and sensing time threshold are given.The simulation is completed to verify the correctness of the algorithm.关键词
认知无线电/主用户移动/用户容量/传输时间Key words
cognitive radio/primary user mobility/user capacity/transmission time分类
信息技术与安全科学引用本文复制引用
于洪涛,张光宇,张中兆,叶东..主用户移动场景下的感知用户时间分配算法[J].光学精密工程,2017,25(6):1587-1596,10.基金项目
国家自然科学基金资助项目(No.61603115) （No.61603115）
中国博士后科学基金资助项目(No.2015M81455) （No.2015M81455）
2015年黑龙江省博士后资助经费(No.LBH-Z15085) （No.LBH-Z15085）
微小型航天器技术国防重点学科实验室开放基金资助项目(No.HIT.KLOF.MST.201501,HIT.KLOF.MST.201601) （No.HIT.KLOF.MST.201501,HIT.KLOF.MST.201601）
