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连涛  聂敏  刘晓慧 《光子学报》2014,(5):581-585
量子移动通信是量子力学与移动通信相结合的崭新的通信技术,具有灵活、高效、安全、保密的优势.本文提出了基于纠缠度计算的同小区内不同扇区天线之间纠缠信令的越区切换策略.研究了量子移动通信终端与天线纠缠度随距离及角度变化关系.在此基础上,对信令的越区切换进行了建模仿真.结果表明,本文所提出的纠缠信令切换策略可靠性高,对于对构建未来量子移动通信系统及其信令标准的制定具有重要的技术支撑作用.  相似文献   
2.
王志  聂敏  刘晓慧 《光子学报》2012,41(4):497-500
信令是任何通信系统必不可少的重要组成部分,量子移动通信也不例外.然而,关于量子移动通信信令在相邻小区越区切换过程中的切换策略问题的研究迄今尚未展开.随着移动用户位置的改变,用户与基站间的纠缠度不断变化.本文提出了基于纠缠度计算的量子信令在相邻小区的越区切换策略.首先定义了信令纠缠度与距离的关系,然后研究了用户位置改变所导致用户与基站之间信令纠缠度的变化情况,提出了基于纠缠度阈值计算的切换算法.仿真结果表明,本文所提出的信令切换策略可靠性高,能够在各基站之间实现平稳切换.因此,本研究对于构造量子移动通信网络的信令系统及其标准的制定具有极为重要的技术支撑作用.  相似文献   
3.
To guarantee the QoS in real time applications in wireless networks, handover delay is one of the most important parameters to be considered while mobile users are changing their point of attachment to the access networks. This calls for a fast handover mechanism that will be able to offer uninterrupted services to mobile users. In this paper, a cross layer based fast handover mechanism is proposed to reduce handover delay and signaling load in IEEE 802.16e wireless metropolitan area networks. This is achieved by overlapping the functions of Medium Access Control (MAC) Layer and Internet Protocol (IP) layer. The analytical results show that the proposed mechanism significantly enhances the handover performance in terms of handover delay and signaling load thus resulting into fast handover.  相似文献   
4.
The ultimate objective in this period is to turn present technology into intelligent global habitats that ease daily interactions. The emerging Industry 4.0 has provided exciting potential technologies that have sped up the transition from the Internet of Things (IoT) to the Internet of Everything using advancements in artificial intelligence (IoE). A secure data transmission method and much higher networking rates are required by the exponential increase in the development and implementation of various 4.0-related industries, even if a blockchain currently employs a fast network like 5G. This highlights how 6G is required to meet the requirements of real-time applications. This research suggests a group-based handover authentication strategy for 6G heterogeneous networks, taking into account the handover of group users in real-world scenarios, to increase the efficiency and guarantee the security of the authentication process. The system consists of four components: the user UE, the access points gNB and eNB, the servers AAA and AAA*, and the widely used blockchain. Additionally, it is split into the EPC (evolved packet core) and 6GC domains by various network topologies (6G core network). To access network services, the UE must first carry out initial authentication and key negotiation with the local server. The system then performs handover authentication as well as batch authentication for individual and group users in handover scenarios, depending on the user count. The suggested scheme accomplished global switching authentication without making the switching process more difficult, accomplished group switching authentication by utilizing blockchain and aggregated signature technologies, and decreased the one-by-one authentication time by Yan using the D–H key exchange idea to accomplish known randomness security. Through formal examination and additional security analysis of the suggested protocol using the AVISPA tool, the results demonstrate that the protocol is secure.  相似文献   
5.
连涛  聂敏  刘晓慧 《光子学报》2012,41(5):581-585
量子移动通信是量子力学与移动通信相结合的崭新的通信技术,具有灵活、高效、安全、保密的优势.本文提出了基于纠缠度计算的同小区内不同扇区天线之间纠缠信令的越区切换策略.研究了量子移动通信终端与天线纠缠度随距离及角度变化关系.在此基础上,对信令的越区切换进行了建模仿真.结果表明,本文所提出的纠缠信令切换策略可靠性高,对于对构建未来量子移动通信系统及其信令标准的制定具有重要的技术支撑作用.  相似文献   
6.
王志  聂敏  刘晓慧 《光子学报》2014,(4):497-500
信令是任何通信系统必不可少的重要组成部分,量子移动通信也不例外.然而,关于量子移动通信信令在相邻小区越区切换过程中的切换策略问题的研究迄今尚未展开.随着移动用户位置的改变,用户与基站间的纠缠度不断变化.本文提出了基于纠缠度计算的量子信令在相邻小区的越区切换策略.首先定义了信令纠缠度与距离的关系,然后研究了用户位置改变所导致用户与基站之间信令纠缠度的变化情况,提出了基于纠缠度阈值计算的切换算法.仿真结果表明,本文所提出的信令切换策略可靠性高,能够在各基站之间实现平稳切换.因此,本研究对于构造量子移动通信网络的信令系统及其标准的制定具有极为重要的技术支撑作用.  相似文献   
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