| ID | 原文 | 译文 |
| 4513 | 鉴于超密集网络中急剧增长的小区和用户数量，研究了如何通过合理地选择联合传输用户来实现动态干扰协调，以此提高小区边缘用户频谱效率。 | In consideration of the rapidly increasing number of cells and users in the ultra-dense network, how to realizedynamic interference coordination by selecting the appropriate joint transmission users was studied, so as to improve the spectral efficiency of the edge users. |
| 4514 | 通过动态协作簇划分和动态联合静默传输 2 种手段，将所有用户分类； | All users were classified by dynamic coordination cluster division and dynamicjoint-muting transmission. |
| 4515 | 再利用迭代优化算法进一步提高系统性能，同时解决了联合传输用户的数量选择问题。 | The iterative optimization algorithm was used to further improve the system performance andsolve the problem of selecting the number of joint transmission users. |
| 4516 | 仿真结果表明，与传统的协作多点方案相比，所提方案在不损失小区平均频谱效率的前提下，在小区边缘频谱效率方面存在显著的性能增益。 | The simulation results prove that compared with the conventional CoMP JT scheme, the proposed scheme has significant performance gains in the cell edge spectral effi-ciency without reducing the cell average spectral efficiency. |
| 4517 | 针对一对多搜索模型下共享解密密钥缺乏细粒度访问控制且搜索结果缺乏正确性验证的问题，提出了一种基于区块链且支持验证的属性基搜索加密方案。 | For the problem that the shared decryption key lacks of fine-grained access control and the search results lacksof correctness verification under one-to-many search model, a verifiable attribute-based searchable encryption schemebased on blockchain was proposed. |
| 4518 | 通过对共享密钥采用密文策略属性加密机制，实现细粒度访问控制。 | The ciphertext policy attribute-based encryption mechanism was used on the sharedkey to achieve fine-grained access control. |
| 4519 | 结合以太坊区块链技术，解决半诚实且好奇的云服务器模型下返回搜索结果不正确的问题，在按需付费的云环境下，实现用户和云服务器之间服务−支付公平，使各方诚实地按照合约规则执行。 | Ethereum blockchain technology was combined to solve the problem of in-correct search results returned by the semi-honest and curious cloud server model, so it could prompt both the cloud serv-er and the user to follow the rules of the contract honestly and achieved service-payment fairness between the user andthe cloud server in the pay-per-use cloud environment. |
| 4520 | 另外，依据区块链的不可篡改性，保证云服务器得到服务费，用户得到正确的检索结果，而不需要额外验证，减少用户计算开销。 | In addition, based on the irreversible modification of the block-chain, the cloud server was guaranteed to receive the service fee, and the user was assured to obtain the correct retrievalresults without additional verification which reduced the computational overhead of the user. |
| 4521 | 安全性分析表明，所提方案满足自适应选择关键词语义安全，能很好地保护用户的隐私以及数据的安全。 | The security analysis showsthat the scheme satisfies the semantic security against adaptive chosen keyword attack and can protect the privacy of us-ers and the security of data. |
| 4522 | 性能对比及实验结果表明，所提方案在安全索引产生、搜索令牌生成、检索效率以及交易数量方面有一定的优化，更加适用于智慧医疗等一对多搜索场景。 | The performance comparison and experimental results show that the scheme has certain op-timizations in security index generation, search token generation, retrieval efficiency and transaction quantity, so it ismore suitable for one-to-many search scenarios such as smart medical. |