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المؤلفLi, Yiqiang
المؤلفZhang, Qi
المؤلفGao, Ran
المؤلفXin, Xiangjun
المؤلفYao, Haipeng
المؤلفTian, Feng
المؤلفGuizani, Mohsen
تاريخ الإتاحة2022-10-11T09:22:01Z
تاريخ النشر2022-05-01
اسم المنشورIEEE Internet of Things Journal
المعرّفhttp://dx.doi.org/10.1109/JIOT.2021.3112617
الاقتباسLi, Y., Zhang, Q., Gao, R., Xin, X., Yao, H., Tian, F., & Guizani, M. (2021). An Elastic Resource Allocation Algorithm Based on Dispersion Degree for Hybrid Requests in Satellite Optical Networks. IEEE Internet of Things Journal, 9(9), 6536-6549.‏
معرّف المصادر الموحدhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85115177037&origin=inward
معرّف المصادر الموحدhttp://hdl.handle.net/10576/35007
الملخصThe satellite-assisted Internet of Things (IoT) communication is considered a key component of the 6G network, and low Earth orbit (LEO) satellite is the leading choice of IoT-related satellites due to its minimum delay. Hybrid requests, including immediate reservation (IR) and advanced reservation (AR) services in LEO satellite netoworks cause the occurrence of resource fragments (RFrags), which adversely affect the network performance. To alleviate the degradation of network performance caused by resource fragmentation, a routing, wavelength, and time-slots assignment algorithm, which is named elastic resource allocation algorithm based on the dispersion degree (ERA-DD), is proposed in this article. Possible resource fragmentation types are analyzed and a fragmentation description named dispersion degree (DD) is designed. In the DD, the number of free resource blocks is accurately described by the state jumps (SJs) of adjacent resource slots, and the numerical relationship between SJs and free resource blocks is proposed and proved. Besides, restrictions on the selection priority of candidate schemes in the ERA-DD algorithm are analyzed. Finally, the traffic blocking rate, the wavelength utilization, the average communication delay, and the average initial delay are evaluated by simulation. The results demonstrate that RFrags are more fully utilized compared with the maximum total link spectrum consecutiveness (MTLSC) algorithm. The traffic blocking rate can be reduced by 32.5% and wavelength utilization can be increased by 1.6%.
راعي المشروعThis work was supported in part by the National Natural Science Foundation of China (NSFC) under Grant 61835002 and Grant 61675033.
اللغةen
الناشرInstitute of Electrical and Electronics Engineers Inc.
الموضوعAllocation strategies
Communications management
Modeling of resources
Network communications
العنوانAn Elastic Resource Allocation Algorithm Based on Dispersion Degree for Hybrid Requests in Satellite Optical Networks
النوعArticle
الصفحات6536-6549
رقم العدد9
رقم المجلد9
dc.accessType Abstract Only


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