准静态瑞利衰落信道下单服务器Database的建模与性能分析
Modeling and Performance Analysis of Single-Server Database Over Quasi-static Rayleigh Fading Channel
摘要：
云数据库是云计算的关键技术。云数据库有效高效的服务质量离不开通信技术，就像提高通信质量会减少售票系统中的并发现象一样。为了直观地观察通信对云数据库的影响，提出了一种准静态瑞利衰落信道下的单服务器数据库通信-数据库模型（Communication-Database，C-D），该模型由客户端源、通信系统和数据库系统三部分组成。本文采用M/G/1//K排队模型对整个系统进行建模。C-D模型分为非线性和线性两种情况进行分析，分别对应于SISO和MIMO的一些情况。对平均停留时间、平均事务数等性能特性的仿真结果与理论结果基本一致，验证了C-D模型的有效性。这些实验结果的比较也证明了差的通信质量确实导致服务质量的降低。
英文摘要：
Cloud database is the key technology in cloud computing. The effective and efficient service quality of the cloud database is inseparable from communication technology, just as improving communication quality will reduce the concurrency phenomenon in the ticketing system. In order to visually observe the impact of communication on the cloud database, we propose a Communication-Database (C-D) Model with a single-server database over the quasi-static Rayleigh fading channel, which consists of three parts: CLIENTS SOURCE, COMMUNICATION SYSTEM and DATABASE SYSTEM. This paper uses the queuing model, M/G/1//K, to model the whole system. The C-D Model is analyzed in two cases: nonlinearity and linearity, which correspond to some instances of SISO and MIMO. The simulation results of average staying time, average number of transactions and other performance characteristics are basically consistent with the theoretical results, which verifies the validity of the C-D Model. The comparison of these experimental results also proves that poor communication quality does lead to the reduction in the quality of service.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
