基于较重负载的竞争-冲突淘汰方式V类双星网的数学建模
发布时间：2018-10-11 08:03
【摘要】：近几年,随着计算机通信进入高速发展的大数据时代,超高速、超大数据的传输需求对网络性能的要求越来越高。星形网以其扩展性好、宜于连接光纤的特点受到广泛应用。国内外已有大量关于星形结构网络的研究报告,竞争-冲突淘汰(Contention-Collision Cancellation,简称C-CC)存取控制方式就是星形网的一种创新的存取控制方式。根据数据单元产生、请求发送和服务方式的情况,可将C-CC方式组合成六类系统模型。其中单星网的数学建模已经完成,由于多星网数学解析的复杂性,对其的研究较之前者比较困难,因此许多工作还有待完成。本文讨论了C-CC方式顾客到达和请求服务均为随机发生的V类系统模型。定义了较重负载应满足的条件：1)观察时点系统顾客数大于1；2)每个服务期系统都会有新顾客产生。通过建模求出了顾客在系统中的继续滞留时间,并通过数值分析讨论了顾客到达率、数据单元长度等性能参数对顾客滞留时间的影响,为构造双星网的理论研究和实际应用提供了重要依据。
[Abstract]:In recent years, with the rapid development of computer communication in big data era, the demand for ultra-high speed and super-large data transmission is becoming more and more demanding for network performance. Star network is widely used because of its good expansibility and suitable for connecting optical fiber. There have been a lot of research reports on star-structured networks at home and abroad. Contention-Collision Cancellation, (Contention-Collision Cancellation, for short) access control is an innovative access control method for star-shaped networks. According to the data unit generation, request sending and service mode, the C-CC mode can be combined into six kinds of system models. The mathematical modeling of single star network has been completed. Due to the complexity of mathematical analysis of multi-satellite network, it is more difficult to study it than the former, so many work has yet to be completed. This paper discusses a class V system model in which both customer arrival and request services are randomly occurring in C-CC mode. The conditions that should be satisfied with heavy load are defined as follows: 1) the number of customers in the observation time system is more than 1 / 2) there are new customers in each service period system. The customer retention time in the system is calculated by modeling, and the influence of customer arrival rate, data unit length and other performance parameters on customer retention time is discussed by numerical analysis. It provides an important basis for the theoretical research and practical application of the construction of double star network.
【学位授予单位】：青岛科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP393.09
本文编号：2263450
[Abstract]:In recent years, with the rapid development of computer communication in big data era, the demand for ultra-high speed and super-large data transmission is becoming more and more demanding for network performance. Star network is widely used because of its good expansibility and suitable for connecting optical fiber. There have been a lot of research reports on star-structured networks at home and abroad. Contention-Collision Cancellation, (Contention-Collision Cancellation, for short) access control is an innovative access control method for star-shaped networks. According to the data unit generation, request sending and service mode, the C-CC mode can be combined into six kinds of system models. The mathematical modeling of single star network has been completed. Due to the complexity of mathematical analysis of multi-satellite network, it is more difficult to study it than the former, so many work has yet to be completed. This paper discusses a class V system model in which both customer arrival and request services are randomly occurring in C-CC mode. The conditions that should be satisfied with heavy load are defined as follows: 1) the number of customers in the observation time system is more than 1 / 2) there are new customers in each service period system. The customer retention time in the system is calculated by modeling, and the influence of customer arrival rate, data unit length and other performance parameters on customer retention time is discussed by numerical analysis. It provides an important basis for the theoretical research and practical application of the construction of double star network.
【学位授予单位】：青岛科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP393.09
【参考文献】
相关期刊论文 前1条
1 逯昭义;竞争－冲突淘汰存取方式Ⅰ类系统模型性能评价[J];电子学报;1995年09期
，本文编号：2263450
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