SERvICE: A Software Defined Framework for Integrated Space-Terrestrial Satellite Communication
SERvICE: A Software Defined Framework for Integrated Space-Terrestrial Satellite Communication
复制标题
SERVICE：用于集成天地卫星通信的软件定义框架
DOI：
10.1109/tmc.2017.2732343
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发表时间：
2018-03-01
影响因子：
7.9
通讯作者：
Yu, Shui
中科院分区：
文献类型：
--
作者：
Li, Taixin;Zhou, Huachun;Yu, Shui
现有的卫星通信系统受到传统设计的影响，如配置速度慢，流量工程不灵活，粗粒度的服务质量（QoS）保证。为了解决这些问题，本文提出了一种基于软件定义网络（SDN）和网络功能虚拟化（NFV）的集成空间地面卫星通信软件定义框架SERVICE。我们首先介绍了SERVICE的三个平面，即管理平面、控制平面和转发平面。该框架旨在实现灵活的卫星网络流量工程和细粒度的QoS保证。我们分析了SERVICE的空间组件的灵活性。然后，我们给出了一个原型的实现与延迟容忍网络（DTN）和OpenFlow的帮助。我们进行了两个实验来验证SERVICE的可行性和原型的功能。此外，我们提出了两个启发式算法，即面向QoS的卫星路由（QSR）算法和面向QoS的带宽分配（QBA）算法，以保证多个用户的QoS要求。在原型中对算法进行了评估。实验结果表明，在文件传输延迟和传输速率方面所提出的算法的效率。
The existing satellite communication systems suffer from traditional design, such as slow configuration, inflexible traffic engineering, and coarse-grained Quality of Service (QoS) guarantee. To address these issues, in this paper, we propose SERvICE, a Software dEfined fRamework for Integrated spaCe-tErrestrial satellite Communication, based on Software Defined Network (SDN) and Network Function Virtualization (NFV). We first introduce the three planes of SERvICE, Management Plane, Control Plane, and Forwarding Plane. The framework is designed to achieve flexible satellite network traffic engineering and fine-grained QoS guarantee. We analyze the agility of the space component of SERvICE. Then, we give a description of the implementation of the prototype with the help of the Delay Tolerant Network (DTN) and OpenFlow. We conduct two experiments to validate the feasibility of SERvICE and the functionality of the prototype. In addition, we propose two heuristic algorithms, namely the QoS-oriented Satellite Routing (QSR) algorithm and the QoS-oriented Bandwidth Allocation (QBA) algorithm, to guarantee the QoS requirement of multiple users. The algorithms are also evaluated in the prototype. The experimental results show the efficiency of the proposed algorithms in terms of file transmission delay and transmission rate.