Towards an architecture and algorithm for the satellite IoT based on a CCN
Towards an architecture and algorithm for the satellite IoT based on a CCN
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DOI：
10.1007/s12083-022-01326-3
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发表时间：
2022-04
影响因子：
4.2
通讯作者：
Dan Liao;Wentao Wang;Kairen Xiao;Hui Li;Ming Zhang
中科院分区：
文献类型：
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作者：
Dan Liao;Wentao Wang;Kairen Xiao;Hui Li;Ming Zhang
卫星物联网（IoT）是使各种物联网设备随时随地接入网络的理想解决方案。在传统的卫星物联网架构中，物联网设备被允许直接访问卫星。然而，随着物联网设备和物联网数据的爆炸式增长，直接连接可能会给卫星物联网带来严重的问题，例如网络拥塞和链路开销。为了解决这些问题，我们研究了基于内容中心网络（CCN）的卫星物联网的体系结构和路由算法。首先，我们使用CCN设计了卫星和物联网设备之间的代理超级路由器（SR），并提出了一种基于CCN的卫星物联网架构。在云联网的帮助下，物联网数据可以在任何地方缓存，并通过兴趣包和内容包传输。物联网数据不再只能通过直接连接获得。其次，我们设计了一个基于树的蚁群（TAC）路由算法在基于CCN的卫星物联网架构。TAC路由算法结合了生成树和蚁群算法的优点，加快了兴趣包和内容包之间的数据传输和数据处理速度。仿真结果表明，本文提出的网络结构和TAC算法能够有效地解决网络拥塞和链路开销问题。
The satellite Internet of Things (IoT) is an ideal solution for enabling various IoT devices to access networks anytime and anywhere. In traditional satellite IoT architecture, IoT devices are allowed to access satellites directly. However, with the explosion of IoT devices and IoT data, direct connections can bring serious problems for the satellite IoT, such as network congestion and link overhead. To solve these problems, we study the architecture and routing algorithm of the satellite IoT based on a content-centric network (CCN). First, we design the agent super-router (SR) between satellites and IoT devices using the CCN and propose a CCN-based satellite IoT architecture. With the help of the CCN, IoT data can be cached anywhere and transmitted through interest packets and content packets. The IoT data are no longer available only through a direct connection. Second, we design a tree-based ant colony (TAC) routing algorithm in the CCN-based satellite IoT architecture. By combining the advantages of the spanning tree and ant colony algorithm, the TAC routing algorithm speeds up data transmission and data processing between interest packets and content packets. Finally, simulations demonstrate that our proposed architecture and TAC algorithm can effectively solve the network congestion and link overhead problems.