LTE-Advanced异构中继网络研究
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摘要
文中提出一种LTE-Advanced异构中继网络架构,并设计合理的中继接入/退出机制,确保用户通过中继传输获得通信质量的改善;提出了中继传输用户的切换机制,有效避免切换过程中用户数据在回程链路上重复转发的问题,大大减少了中继切换过程中的网络延时;最后,结合Full Buffer业务模型对该中继系统用Opnet进行仿真分析,证明在加入中继并合理设置中继接入控制阈值后有助于充分发挥中继系统的作用,使系统性能得到极大改善。
An LTE-Advanced heterogeneous relay network architecture is proposed,and a reasonable relay access/exit mechanism is designed to ensure the improvement of communication quality through relay transmission. The handover mechanism of relay transmission users is proposed, which can effectively avoid the problem of repeated forwarding of user data on the return link during handover,and greatly reduce the network delay in the process of relay handover. Finally,the simulation analysis of the relay system using Opnet combined with Full Buffer service model proves that it is helpful to give full play to the performance of the relay system after adding relay and setting the relay access control threshold reasonably. With this method,the system performance is greatly improved.
An LTE-Advanced heterogeneous relay network architecture is proposed,and a reasonable relay access/exit mechanism is designed to ensure the improvement of communication quality through relay transmission. The handover mechanism of relay transmission users is proposed, which can effectively avoid the problem of repeated forwarding of user data on the return link during handover,and greatly reduce the network delay in the process of relay handover. Finally,the simulation analysis of the relay system using Opnet combined with Full Buffer service model proves that it is helpful to give full play to the performance of the relay system after adding relay and setting the relay access control threshold reasonably. With this method,the system performance is greatly improved.
引文
[1]Lee J,Kim Y,Kwak Y. LTE-advanced in 3GPP Rel-13/14:an evolution toward 5G[J]. IEEE Communications Magazine,2016,54(3):36-42.
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[7]周卓琴. TD-LTE小区间干扰协调研究[D].北京:北京邮电大学,2014:8-15.
[8]蒋祥鹏,武向农,徐冠.基于ROF系统六倍频毫米波生成技术的研究[J].科技通报,2016,32(2):154-157.
[9]肖鑫,强东东,吴慧. Ro F系统中毫米波信号产生方法的研究[J].信息通信,2014(1):19-20.
[10]王照,马健新,张瑞姣,等.基于单边带调制的直接探测光OFDM-RoF系统研究[J].光电子·激光,2014(9):1709-1714.
[11]赵季红,韩海芳,曲桦. LTE-Advanced中继系统基于资源共享的呼叫接纳控制方法[J].电信科学,2014,30(2):60-64.
[12]张志恒. LTE-Advanced系统中继技术的研究[J].信息通信,2014(3):188-190.
[13]李云,李宇明,苏开荣,等. LTE-A中继网络中基于小区间干扰协调的分布式资源分配[J].计算机应用研究,2013,30(7):2185-2189.
[14]徐啸涛,陈丽琴.中继节点缓冲区对LTE-A系统性能影响研究[J].国外电子测量技术,2017,36(3):64-66.
[15]乔世娇,乔明闯,陈晓军. LTE-A系统中继网络中接入点选择算法的研究[J].信息技术,2016,40(4):126-129.
[2]Nardini G,Stea G,Virdis A,et al. Fast and agile lossless mode switching for D2D communications in LTE-Advanced networks[C].Vehicular Technology Conference,2016(5):15-18.
[3]赵力. LTE-Advanced网络中的双连接技术研究[D].北京:北京邮电大学,2015:10-28.
[4]马昱,薛文倩,彭木根,等. LTE-Advanced系统的网络自治愈技术[J].中兴通讯技术,2013,19(1):13-17.
[5]李先栋,于翠波,勾学荣. LTE-Advanced移动通信系统双连接技术[J].现代电信科技,2014(9):17-23.
[6]许娟雄,刘伊莎,唐伦,等. LTE-Advanced异构网络中负载均衡研究进展及展望[J].电信科学,2014,30(10):116-128.
[7]周卓琴. TD-LTE小区间干扰协调研究[D].北京:北京邮电大学,2014:8-15.
[8]蒋祥鹏,武向农,徐冠.基于ROF系统六倍频毫米波生成技术的研究[J].科技通报,2016,32(2):154-157.
[9]肖鑫,强东东,吴慧. Ro F系统中毫米波信号产生方法的研究[J].信息通信,2014(1):19-20.
[10]王照,马健新,张瑞姣,等.基于单边带调制的直接探测光OFDM-RoF系统研究[J].光电子·激光,2014(9):1709-1714.
[11]赵季红,韩海芳,曲桦. LTE-Advanced中继系统基于资源共享的呼叫接纳控制方法[J].电信科学,2014,30(2):60-64.
[12]张志恒. LTE-Advanced系统中继技术的研究[J].信息通信,2014(3):188-190.
[13]李云,李宇明,苏开荣,等. LTE-A中继网络中基于小区间干扰协调的分布式资源分配[J].计算机应用研究,2013,30(7):2185-2189.
[14]徐啸涛,陈丽琴.中继节点缓冲区对LTE-A系统性能影响研究[J].国外电子测量技术,2017,36(3):64-66.
[15]乔世娇,乔明闯,陈晓军. LTE-A系统中继网络中接入点选择算法的研究[J].信息技术,2016,40(4):126-129.