THE HITTING TIMES ANALYSIS OF COGNITIVE USER IN COGNITIVE INTERNET UNDER RANDOM DIRECTION MOBILITY MODEL
The Cognitive Internet as a new Internet architecture with cognition capability was proposed based on the cognitive radio technology and new network architecture.Cognitive Internet has two kinds of users called Cognitive Users (CUs) and Primary Users (PUs).The CUs can occupy the frequency of PUs when they are absent.As a result,the activities of CUs may have an important impact on the PUs.So in this paper,we model the movement behavior of CU under the random direction mobility model,and analyze its expected hitting time between CU and PU to evaluate its potential impact.Besides,we simulate the mobility of CU to acquire the expected hitting times,and compare it with the analytical results.The final results show that the analytical results can fit with the simulation results.
Cognitive user Mobility model Hitting time Random direction
Jianfeng Guan Changqiao Xu Wei Quan Hongke Zhang
State Key Laboratory of Network and Switch Technology Beijing University of Posts and Telecommunicat State Key Laboratory of Network and Switch Technology Beijing University of Posts and Telecommunicat State Key Laboratory of Network and Switch Technology Beijing University of Posts and Telecommunicat
国际会议
杭州
英文
970-974
2012-10-30（万方平台首次上网日期，不代表论文的发表时间）