摘要
In the 5th generation(5G)wireless communication networks,network slicing emerges where network operators(NPs)form isolated logical slices by the same cellular network infrastructure and spectrum resource.In coverage regions of access points(APs)shared by slices,device to device(D2D)communication can occur among different slices,i.e.,one device acts as D2D relay for another device serving by a different slice,which is defined as slice cooperation in this paper.Since selfish slices will not help other slices by cooperation voluntarily and unconditionally,this paper designs a novel resource allocation scheme to stimulate slice cooperation.The main idea is to encourage slice to perform cooperation for other slices by rewarding it with higher throughput.The proposed incentive scheme for slice cooperation is formulated by an optimal problem,where cooperative activities are introduced to the objective function.Since optimal solutions of the formulated problem are long term statistics,though can be obtained,a practical online slice scheduling algorithm is designed,which can obtain optimal solutions of the formulated maximal problem.Lastly,the throughput isolation indexes are defined to evaluate isolation performance of slice.According to simulation results,the proposed incentive scheme for slice cooperation can stimulate slice cooperation effectively,and the isolation of slice is also simulated and discussed.
In the 5th generation（5G） wireless communication networks, network slicing emerges where network operators（NPs） form isolated logical slices by the same cellular network infrastructure and spectrum resource. In coverage regions of access points（APs） shared by slices, device to device（D2D） communication can occur among different slices, i.e., one device acts as D2D relay for another device serving by a different slice, which is defined as slice cooperation in this paper. Since selfish slices will not help other slices by cooperation voluntarily and unconditionally, this paper designs a novel resource allocation scheme to stimulate slice cooperation. The main idea is to encourage slice to perform cooperation for other slices by rewarding it with higher throughput. The proposed incentive scheme for slice cooperation is formulated by an optimal problem, where cooperative activities are introduced to the objective function. Since optimal solutions of the formulated problem are long term statistics, though can be obtained, a practical online slice scheduling algorithm is designed, which can obtain optimal solutions of the formulated maximal problem. Lastly, the throughput isolation indexes are defined to evaluate isolation performance of slice. According to simulation results, the proposed incentive scheme for slice cooperation canstimulate slice cooperation effectively, and the isolation of slice is also simulated and discussed.
基金
supported by Beijing Natural Science Foundation under Grant number L172049
the National Science and CAS Engineering Laboratory for Intelligent Agricultural Machinery Equipment GC201907-02
作者简介
The corresponding author:Lin Tian,email:tianlindd@ict.ac.cn;Qian Sun,is working in the Wireless Communication Research Center of ICT/CAS.She received the B.E.and the M.E.degrees from Beijing Jiao Tong University,Beijing China,in 2012 and 2015,respectively.Her research interests include wireless network virtualization,device-to-device communication,cooperation stimulation and green communication in wireless networks;Lin Tian,is an professor at the Wireless Communication Research Center of ICT/CAS.She received her Ph.D.degree from ICT/CAS in April2012.Her research interests include wireless resource management and multimedia multicast schemes in next-generation mobile communication systems.She was the Symposium Co-Chair of ChinaCom’13 and publication chair ofChinaCom’12.She has also served as a reviewer for a number of referred journals and international conferences;Yiqing Zhou,received her Ph.D.degree from the University of Hong Kong in February 2004.She is a professor at the Wireless Communication Research Center of ICT/CAS.She is an Associate and Guest Editor for IEEE Transactions on Vehicular Technology,IEEE JSAC(Special Issues on Broadband Wireless Communication for High Speed Vehicles and Virtual MIMO),WCMC and ETT.She has also served many international conferences as a TPC member,including IEEE ICC,GLOBECOM and WCNC;Jinglin Shi,is the director of the Wireless Communication Research Center of ICT/CAS.He is also a visiting professor at Beijing University of Posts and Telecommunications,the University of Sydney,the University of Wollongong,and Macquarie University.His research interests include wireless communications system architecture and management,wireless signal processing theory,and wireless communications baseband processor design.As a team leader,he successfully led the development of TD-SCDMA,WiMAX,and LTE protocol stack systems;Zongshuai Zhang,received the B.E.degree in communication engineering from Tongji University,Shanghai,China,in 2011,and the M.E.degree in electronics and communication engineering from the University of Chinese Academy of Sciences,Beijing,China,in 2015,where he is currently pursuing the Ph.D.degree with the Institute of Computing Technology,Chinese Academy of Sciences.His research interests include resource management in the centralized radio access networks,and the convergence of communication and computing。
