异构网络中的分层并发传输技术研究

项目名称： 异构网络中的分层并发传输技术研究

项目编号： No.61501285

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 无线电电子学、电信技术

项目作者： 马骁

作者单位： 陕西师范大学

项目金额： 23万元

中文摘要： 网络并发传输技术可有效聚合多种网络资源来保障大容量业务的服务质量，是未来5G通信系统的关键技术支撑。本项目首先从分析现有单层并发传输网络结构的缺陷入手，结合下一代移动网络多层、密集布设的特点，提出分层多点并发传输理论，建立级联的排队网络模型，分析其理论性能界；在此基础上，研究并发传输最佳启动条件问题，分析基于多点分层并传构架下多参数融合的分流门限，实现业务速率与资源分配的联动和优化耦合；更进一步地，设计保证端到端分组一致性的灵活数据分流策略，完成对传输层协议透明的并发传输机制，解决多点分层并传网络中的大容量业务传输问题；最后，开发仿真测试平台和实验验证系统，对所提理论和新型算法进行评估验证。本项目的研究为面向下一代网络的多点分层并发传输提供理论和技术支撑。

中文关键词： 并发传输；数据分流；网络选择；资源管理；网络融合

英文摘要： Multi-RAT concurrent transmission technology can efficiently merge multiple network resources to guarantee the quality of service of data-hungry applications, which is the critically important basis for the future 5th generation mobile communication system. Firstly, starting with analyses the deficiencies of current single layer concurrent transmission network, we combine the multi-layer and dense deployment characteristics of the next generation mobile communication system, propose the hierarchical multi-node concurrent transmission theory, establish the cascaded queuing network model, and analyze the performance bound theoretically. Following the above fundamental research, we study the optimal decision making conditions for concurrent transmission，analyze the data splitting threshold for multiple parameters integration in the hierarchical multi-node concurrent transmission structure, jointly adjust data rate and radio resource allocation and attains the optimized coupling. Furthermore, we design the flexible data splitting scheme to guarantee the correct order for the end to end packets, propose the concurrent transmission mechanism which is transparent to transport layer protocol, and handle the service problem of data hungry application in the hierarchical multi-node concurrent transmission network. Finally, we develop simulation test platform and emulation systems, and evaluate and verify our proposed innovative theory and algorithms. This project will provide valuable theoretical foundation and technique reference for the hierarchical multi-node concurrent transmission in the next generation mobile communication system.

英文关键词： Concurrent transmission;Data splitting;Network selection;Resource management;Network convergence