ID 原文 译文
45686 首先，要在各节点完成信道估计， Firstly, all the nodes send training sequences in turn to estimate the channels.
45687 之后，中继节点采用安全网络编码技术辅助通信双方获取相同信道的估计值，同时辅助信息不泄露该信道的任何信息， After that the relays employ secure network coding technique to assist the two legitimate users to obtain the correlative observations of the same wireless channel, with nothing leakage about the channel information to the eavesdropper.
45688 最后通信双方直接在公共信道上协商得到相同的密钥。 Finally, the two legitimate users agreed on a common secret key directly over the public channel.
45689 理论分析和仿真结果表明，该方法可以有效地提高可达密钥速率，同时增加传输路径，选取跳数少、信道变化大的传输路径，可以进一步提高可达密钥速率。 Theoretical and simulation results validate the performance of the proposed secret key generation algorithm, and obtain that increasing the wireless transmission paths, selecting the transmission path with less hops and larger variance channels can further improve the achievable secret key rate.
45690 针对车联网中 Mix-zone 方案灵活性低以及隐私保护程度对用户缺乏透明度的问题，提出一种交通自适应的动态 Mix-zone 创建方法，可以根据道路交通状况为车辆动态创建 Mix-zone，随时随地为车辆创建 Mix-zone进行假名更换， Aiming at the weak flexibility and lack of users’ transparency existing in the current Mix-zone schemes for Internet of vehicle (IoV), a dynamic was proposed for Mix-zone construction with traffic adaption, which could construct a Mix-zone for the vehicles dynamically according to the traffic conditions for changing pseudonym at anytime and anywhere.
45691 建立基于身份和位置的隐私保护； This kind of Mix-zone could achieve privacy-preserving based on the identity and location.
45692 提出对 Mix-zone 进行隐私分级的联合熵度量模型，可通过归一化的定量计算结果度量 Mix-zone 达到当前区域车辆隐私需求的程度。 In addition, a novel traffic-adaptive metric was presented for classifying the privacy leveled in Mix-zone, which applied the normalization quantitation to measure the degree of Mix-zone’s privacy demanding by the current region.
45693 使用深圳市某区的出租车辆的轨迹数据验证了联合熵隐私度量模型及基于该模型的 Mix-zone 创建方案， It was verified that the joint entropy-based privacy measuring model and the Mix-zone construction scheme by utilizing the trajectory data of taxis in certain district in Shenzhen city.
45694 实验结果表明，该联合熵模型能刻画交通场景中参数与隐私保护程度的正比关系，在联合熵所表示的无序性指标上， The experimental shows that the proposed combination entropy-based model could depict the proportional relationship between the traffic scene parameters and the privacy-preserving degrees.
45695 所提 Mix-zone 创建方案相较其他方案，具有更好的隐私保护效果。 The scheme is better in performance over the related methods, and strikes a good balance between location privacy and service usability.