感知时间不可区分的车辆群智感知隐私保护任务分配方案  

Indistinguishable sensing time privacy-preserving task allocation scheme for vehicular crowdsensing

作　　者：张磊[1,2,3] 张潇 纪莉莉 Zhang Lei;Zhang Xiao;Ji Lili(College of Information Science&Electronic Technology,Jiamusi University,Jiamusi Heilongjiang 154007,China;The Heilongjiang Provincial Key Laboratory of Autonomous Intelligence&Information Processing,School of Information Science&Electronic Technology,Jiamusi University,Jiamusi Heilongjiang 154007,China;Jiamusi Key Laboratory of Satellite Navigation Technology&Equipment Engineering Technology,Jiamusi Heilongjiang 154007,China)

机构地区：[1]佳木斯大学信息电子技术学院,黑龙江佳木斯154007 [2]佳木斯大学信息电子技术学院黑龙江省自主智能与信息处理重点实验室,黑龙江佳木斯154007 [3]佳木斯市卫星导航技术与装备工程技术重点实验室,黑龙江佳木斯154007

出　　处：《计算机应用研究》2025年第4期1198-1203,共6页Application Research of Computers

基　　金：黑龙江省省属高等学校基本科研业务费优秀创新团队建设项目(2022-KYYWF-0654);佳木斯大学国家基金培育项目(JMSUGPZR2022-014);黑龙江省自主智能与信息处理重点实验室开放课题(ZZXC202302);佳木斯大学“东极”学术团队(DJXSTD202417);黑龙江省省属本科高校优秀青年教师基础研究支持计划资助项目(YQJH2024239);佳木斯大学博士专项科研启动项目(JMSUBZ2024-07);黑龙江省自然科学基金联合基金培育项目(PL2024F002)。

摘　　要：在车辆群智感知的任务分配中,大多数隐私保护机制将用户暴露于潜在的时间感知推理下,使攻击者能够推断出用户的敏感信息。针对该问题,提出一种感知时间不可区分的隐私保护任务分配方案。首先,该方案为满足用户对感知时间隐私保护的需求,运用差分隐私技术,对车辆的原始停留数据添加拉普拉斯噪声进行模糊处理。其次,在考虑任务之间旅行时间的同时,计算出车辆用户完成感知任务概率,以此来判断是否可以进行任务分配。若概率大于0,则合理分配所有任务保证负载均衡,否则不再分配任务。因此,该方案一方面提供了感知时间的隐私保护,另一方面能够保障分配任务的有效性。最后通过与其他方案进行比较,并分析它们的相对性能,进一步证实了该方案的优越性。In the task allocation of vehicular crowdsensing,most privacy protection mechanisms expose users to potential temporal sensing inferences,enabling attackers to deduce sensitive user information.To address this issue,this paper proposed a privacy-preserving task allocation scheme that ensured indistinguishability of sensing times.Firstly,to meet the demand for privacy protection of sensing times,this scheme applied differential privacy technology to add Laplace noise to the original dwell data of vehicles,thereby obfuscating the data.Secondly,considering the travel time between tasks,it calculated the probability of vehicle users completing the sensing tasks,which helped to determine if task allocation could proceed.If the probability was greater than zero,it allocated all tasks reasonably to ensure load balancing;otherwise,no further tasks were assigned.Thus,this scheme provided privacy protection for sensing times on one hand and ensured the effectiveness of task allocation on the other.Finally,by comparing this scheme with others and analyzing their relative performance through simulation experiments,the results further confirm the superiority of the proposed scheme.

关 键 词：车辆群智感知 感知时间 差分隐私 隐私保护 任务分配 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]