计算机科学 ›› 2015, Vol. 42 ›› Issue (2): 70-75.doi: 10.11896/j.issn.1002-137X.2015.02.015
司远,陈昕,刘宗奇
SI Yuan, CHEN Xin and LIU Zong-qi
摘要: LTE-A是一种4G移动通信标准,可满足移动数据业务对传输带宽的要求。为解决移动通信网络中室内信号质量较差的问题,LTE-A标准采用飞蜂窝技术作为室内无线接入解决方案。针对LTE-A飞蜂窝网络的时延边界问题,运用随机网络演算方法分析业务流的自相似性质和MIMO信道的时变特性,构建了LTE-A飞蜂窝网络中自相似业务流的随机到达与随机服务模型。围绕所构建的到达与服务模型,运用有效带宽理论和chernoff界方法,给出了自相似业务流的端到端时延边界。NS3仿真验证表明,在信道带宽和业务流优先级等指标不同的情形下,所给出的理论端到端时延边界与仿真时延的偏差在2ms以内,较为准确有效,可为确保LTE-A飞蜂窝网络的服务质量提供依据。
[1] De Domenico A,Calvanese Strinati E,Capone A.Enabling Green cellular networks:A survey and outlook[J].Computer Communications,2014,37(1):5-24 [2] Zahir T,Arshad K,Nakata A,et al.Interference management in femtocells[J].IEEE Communications Surveys & Tutorials,2013,15(1):293-311 [3] Aijaz A,Aghvami H,Amani M.A survey on mobile data offloading:technical and business perspectives[J].IEEE Wireless Communications,2013,20(2):104-112 [4] Andrews J G,Claussen H,Dohler M,et al.Femtocells:Past,present,and future [J].IEEE Journal on Selected Areas in Communications,2012,30(3):497-508 [5] Tassi A,Khirallah C,Vukobratovic D,et al.Reliable rate-opti-mized video multicasting services over LTE/LTE-A[C]∥2013 IEEE International Conference on Communications (ICC).IEEE,2013:5078-5082 [6] Biswas J,Liu R P,Ni W,et al.Joint channel and delay aware userscheduling for multiuser MIMO system over LTE-A network[C]∥2013 IEEE/ACM 21st International Symposium on Qualityof Service(IWQoS).IEEE,2013:1-8 [7] Jiang Y.A basic stochastic network calculus[J].ACM SIG-COMM Computer Communication Review,ACM,2006,36(4):123-134 [8] Azodolmolky S,Wieder P,Yahyapour R.Performance Evalua-tion of a Scalable Software-Defined Networking Deployment[C]∥2013 Second European Workshop on Software Defined Networks (EWSDN).IEEE,2013:68-74 [9] Zhu Q,Yu L,Fang S.Per-flow end-to-end delay bounds in hybrid wireless network[C]∥2013 IEEE Wireless Communicationsand Networking Conference (WCNC).IEEE,2013:2113-2118 [10] 魏德宾,潘成胜,韩睿.卫星网络业务自相似特性分析[J].计算机科学,2013,40(5):67-69 [11] 倪锐,周武旸,卫国.基于网络演算的无线蜂窝网建模及其业务匹配研究[J].通信学报,2010(7):33-39 [12] Jiang L,Yu L,Dong Y,et al.Delay and backlog distributionanalysis of Amplify-and-Forward cooperative channels:A stochastic network calculus perspective[C]∥2013 IEEE Wireless Communications and Networking Conference (WCNC).IEEE,2013:2085-2090 [13] Min G,Jin X.Analytical Modelling and Optimization of Congestion Control for Prioritized Multi-Class Self-Similar Traffic[J].IEEE Transactions on Communications,2013,61(1):257-265 [14] 喻莉,白云,朱光喜.基于 LFSN 自相似流量模型的随机突发边界分析[J].通信学报,2010,31(5):16-21 [15] Liebeherr J,Burchard A,Ciucu F.Non-asymptotic delay bounds for networks with heavy-tailed traffic[C]∥2010 Proceedings IEEE INFOCOM.IEEE,2010:1-9 [16] Mahmood K,Vehkapera M,Jiang Y.Delay constrained through-put analysis of a correlated MIMO wireless channel[C]∥IEEE Proceedings of 20th International Conference on Computer Communications and Networks (ICCCN).IEEE,2011:1-7 [17] Kishiyama Y,Benjebbour A,Nakamura T,et al.Future steps of LTE-A:evolution toward integration of local area and wide area systems[J].IEEE Wireless Communications,2013,20(1):12-18 [18] Lin C,Deng Y,Jiang Y.On applying stochastic network calculus[J].Frontiers of Computer Science,2013,7(6):924-942 [19] 3GPP TR36.814 V9.0.0.http://www.docin.com/p-277723701.html [20] Rizk A,Fidler M.On Multiplexing Models for IndependentTraffic Flows in Single-and Multi-Node Networks[J].IEEE Transactions on Network and Service Management,2013,10(1):15-28 [21] 陈昕,张磊,向旭东,等.基于随机网络演算的LTE网络端到端时延分析[J].计算机学报,2012,35(1):46-52 |
No related articles found! |
|