C-DOCSIS协议MAC层仿真平台设计与性能研究

发布时间：2018-04-21 07:36

本文选题：C-DOCSIS + MAC层协议　；参考：《西安电子科技大学》2014年硕士论文

【摘要】：有线电视系统HFC网络(Hybrid Fiber Coax Network光纤同轴混合网络),具有易于实现双向传输和传输容量大的特点。基于HFC网络设计的DOCSIS (Data-Over-Cable Service Interface Specifications有线电缆数据服务接口规范)系列标准因通信速率高、支持多种业务和配置管理能力强等优点在北美得到了广泛应用。为适应国内的应用场景和业务需求,我国在DOCSIS基础上,提出了C-DOCSIS(China-DOCSIS),它继承了HFC+DOCSIS技术体系的技术优势和技术资产并简化部分信道技术。本文主要研究C-DOCSIS的MAC (Media Access Control介质访问控制)层协议仿真平台设计与性能分析。首先介绍了C-DOCSIS协议的网络结构、协议栈和物理层处理流程,详细分析了MAC层帧结构、数据传输机制(包括信道绑定、竞争机制)及协议封装方法。在此基础上,设计了C-DOCSIS MAC层协议仿真平台,实现了基于事件的仿真平台架构和统计、数据包发送、接收、队列管理和信道规划等功能模块。基于该平台,对MAC协议机制进行了仿真,设计了多种测试场景,对协议的吞吐量、时延和时延抖动等性能进行了测试与分析。
[Abstract]:Hybrid Fiber Coax Network hybrid fiber coaxial hybrid network for CATV system HFC network has the characteristics of easy to realize bidirectional transmission and large transmission capacity. The DOCSIS Data-Over-Cable Service Interface Specifications cable data service interface specification based on HFC network is widely used in North America because of its high communication rate, support for multiple services and strong configuration management ability. In order to meet the domestic application scenarios and business requirements, a C-DOCSIS China-DOCSIS is proposed on the basis of DOCSIS in China, which inherits the technical advantages and technical assets of the HFC DOCSIS technology architecture and simplifies some channel technologies. This paper focuses on the design and performance analysis of MAC Access Control layer protocol simulation platform for C-DOCSIS. Firstly, the network structure, protocol stack and physical layer processing flow of C-DOCSIS protocol are introduced. The frame structure of MAC layer, data transmission mechanism (including channel binding, competition mechanism) and protocol encapsulation method are analyzed in detail. On this basis, the protocol simulation platform of C-DOCSIS MAC layer is designed. The Event-based simulation platform architecture and statistics, data packet sending, receiving, queue management and channel planning are implemented. Based on this platform, the MAC protocol mechanism is simulated, and various test scenarios are designed. The performance of the protocol, such as throughput, delay and delay jitter, is tested and analyzed.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN943.6

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