全双工蜂窝网络的调度算法研究
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摘要
全双工通信技术能够将无线通信链路的频谱效率提高2倍,但是在全双工蜂窝网络中存在多种类型的干扰,降低了全双工蜂窝网络的吞吐量。基于此,分析全双工蜂窝网络不同通信模式的速率,提出两种最大化蜂窝网络吞吐量的调度准则。仿真结果表明,全双工蜂窝通信系统不能获得2倍的频谱增益,所获得的增益与系统的工作模式有关;所提的两种调度准则均能够显著提升全双工蜂窝系统的吞吐量。
The full-duplex technology has the potential to double the spectral efficiency of a point-topoint link. However, the application of such a technology in cellular systems usually suffers from diverse interference, thus degrading the throughput of the full-duplex cellular system. Based on this, the throughputs of different duplex modes in the full-duplex cellular system are analyzed,and the two scheduling methods proposed to maximize the throughputof cellular network. Simulation results indicate that the full-duplex cellular communication system couldn't get twice the spectrum gain, and the acquired gain is closely related to the workingmodeof the system. The experiment indicates that the proposed scheduling methods could significantly improve the throughput of full-duplex cellular systems.
The full-duplex technology has the potential to double the spectral efficiency of a point-topoint link. However, the application of such a technology in cellular systems usually suffers from diverse interference, thus degrading the throughput of the full-duplex cellular system. Based on this, the throughputs of different duplex modes in the full-duplex cellular system are analyzed,and the two scheduling methods proposed to maximize the throughputof cellular network. Simulation results indicate that the full-duplex cellular communication system couldn't get twice the spectrum gain, and the acquired gain is closely related to the workingmodeof the system. The experiment indicates that the proposed scheduling methods could significantly improve the throughput of full-duplex cellular systems.
引文
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[6]Wang X,Huang H,Hwang T.On the Capacity Gain from Full Duplex Communications in a Large Scale Wireless Network[J].IEEE Transactions on Mobile Computi ng,2016,15(09):2290-2303.
[7]TR 36.814,Evolved Universal Terrestrial Radio Access(E-UTRA);Further Advancements for E-UTRAPhysical Layer Aspects[S].2010.
[2]Bharadia D,McMilin E,Katti S.Full Duplex Radios[J].ACM SIGCOMM Computer Communication Review,2013,43(04):375-386.
[3]Wang X,Huang H,Hwang T.On the Capacity Gain from Full Duplex Communications in a Large Scale Wireless Network[J].IEEE Transactions on Mobile Computi ng,2016,15(09):2290-2303.
[4]Tong Z,Haenggi M.Throughput Analysis for Wireless Networks with Full-Duplex Radios[C].2015 IEEE Wireless Communications and Networking Conference(WCNC),2015:717-722.
[5]Yao C,Yang K,Song L,et al.X-Duplex:Adapting of FullDuplex and Half-Duplex[C].2015 IEEE Conference on Computer Communications Workshops(INFOCOMWKSHPS),2015:55-56.
[6]Wang X,Huang H,Hwang T.On the Capacity Gain from Full Duplex Communications in a Large Scale Wireless Network[J].IEEE Transactions on Mobile Computi ng,2016,15(09):2290-2303.
[7]TR 36.814,Evolved Universal Terrestrial Radio Access(E-UTRA);Further Advancements for E-UTRAPhysical Layer Aspects[S].2010.