基于智能SDN面向5G的异构蜂窝网络架构

doi:10.11959/j.issn.1000-0801.2016163

摘要/Abstract

摘要：

首次提出了智能SDN（软件定义网络）的概念和架构，解决了以往SDN系统缺乏智能化的问题。通过与蜂窝网的结合，提出了基于智能SDN面向5G 的异构蜂窝网络总体架构，实现对无线接入网和有线核心网的统一管理。基于智能SDN的管理和协调，在无线接入部分提出控制和数据分离、上行和下行分离、无线资源动态适配等技术，提高频谱效率和能量效率；在核心网部分实现高效的内容分发以及快速的网络安全防护策略，增加数据吞吐率以及网络可扩展性。同时，通过无线接入网和核心网之间的资源共享和联合优化，提供网络功能虚拟化和个性化业务定制，实现智能SDN系统与异构蜂窝网络的深度融合。

关键词: 智能SDN, 异构蜂窝网, 5G, 深度融合

Abstract:

To enrich the SDN（software defined networking）with intelligence and learning capability，an intelligent SDN paradigm was proposed for the first time.Combining it with the traditional cellular networks，5G-oriented heterogeneous cellular network architecture based on the intelligent SDN was set up，which made the integrated management of radio access networks and core networks possible.Based on the management and coordination of intelligent SDN，the decoupling of control and data，decoupling of uplink and downlink，and dynamic resource utilization in radio access networks to improve the spectrum efficiency and energy efficiency were put forward；content caching and network security strategies were deployed in the core networks to enhance the network scalability and data throughput.Globally，the resource utilization in radio access networks and core networks was optimized to achieve the network function virtualization and customized service provision，which contributed to the in-depth combination between the heterogeneous cellular networks and intelligent SDN.

Key words: intelligent SDN, heterogeneous cellular network, 5G, in-depth combination

周逸凡,赵志峰,张宏纲. 基于智能SDN面向5G的异构蜂窝网络架构[J]. 电信科学, 2016, 32(6): 28-35.

Yifan ZHOU,Zhifeng ZHAO,Honggang ZHANG. Towards 5G：heterogeneous cellular network architecture design based on intelligent SDN paradigm[J]. Telecommunications Science, 2016, 32(6): 28-35.

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