An Efficient Spectrum Mobility and Handover Method for Cognitive Satellite Network

2021 IEEE 9th International Conference on Information, Communication and Networks (ICICN) Pub Date : 2021-11-25 DOI:10.1109/icicn52636.2021.9673953

Chunfeng Wang, Naijin Liu

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Abstract

Although unlicensed bands are used more and more, but licensed bands are not used enough. This brings challenges to the concepts of open spectrum and dynamic spectrum access. Dynamic spectrum access is an effective method of spectrum sharing, which can realize the effective utilization of spectrum resources. Cognitive radio technology can achieve effective utilization of wireless bandwidth. In this paper, the application of software radio technology in satellite network system is discussed. The problem of spectrum mobility and handover in cognitive satellite network system is studied. An efficient spectrum mobility and handover method for cognitive satellite network is proposed. The cross-layer handover protocol with minimum expected transmission time in cognitive satellite network system is studied, instead of maximum idle time of spectrum hole. performance analysis and simulation are carried out. The proposed spectrum mobility and handover scheme can reduce the expected transmission time and probability of spectrum mobility, and improve the overall performance of the system.

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一种有效的认知卫星网络频谱迁移与切换方法

虽然未经授权的频段被越来越多地使用，但是授权的频段却没有被充分利用。这给开放频谱和动态频谱接入的概念带来了挑战。动态频谱接入是一种有效的频谱共享方式，可以实现频谱资源的有效利用。认知无线电技术可以实现无线带宽的有效利用。本文讨论了软件无线电技术在卫星网络系统中的应用。研究了认知卫星网络系统中的频谱迁移和切换问题。提出了一种有效的认知卫星网络频谱迁移与切换方法。研究了认知卫星网络系统中期望传输时间最小的跨层切换协议，而不是频谱空穴的最大空闲时间。进行了性能分析和仿真。提出的频谱迁移和切换方案可以降低预期传输时间和频谱迁移概率，提高系统的整体性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2021 IEEE 9th International Conference on Information, Communication and Networks (ICICN)

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