IEEE 802.11帧聚合机制在NS-2平台上的仿真与实现
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摘要
网络仿真是研究和评估MAC协议性能的重要途径之一。本文首先概要地介绍了基于IEEE 802.11 DCF接入协议的帧聚合机制,通过Markov建模给出了使用帧聚合机制后的网路吞吐量分析表达式。进而详细介绍了如何使用NS-2平台来实现IEEE 802.11帧聚合机制。最后,利用文中设计的NS-2仿真平台对IEEE 802.11帧聚合机制进行性能仿真和评估,仿真结果与理论分析相符,进一步验证了仿真平台的有效性,因而可被广泛应用于分布式无线网络的MAC协议研究中。
Network simulation is playing an important role in the study and evaluation of MAC protocol.In this paper,frame aggregation scheme based on IEEE 802.11 DCF is firstly outlined,and then the analysis of system throughput of frame aggregation scheme is presented based on Markov modelling.Further,based on NS-2 simulator,implementation of frame aggregation scheme is introduced in detail.Finally,the performance verification of IEEE 802.11 frame aggregation is conducted on the proposed NS-2 simulation platform. The simulation results are identical with the theoretical analysis,and thus the validity of simulation platform is verified,so it can be widely used in the research of MAC protocol in distributed wireless networks.
Network simulation is playing an important role in the study and evaluation of MAC protocol.In this paper,frame aggregation scheme based on IEEE 802.11 DCF is firstly outlined,and then the analysis of system throughput of frame aggregation scheme is presented based on Markov modelling.Further,based on NS-2 simulator,implementation of frame aggregation scheme is introduced in detail.Finally,the performance verification of IEEE 802.11 frame aggregation is conducted on the proposed NS-2 simulation platform. The simulation results are identical with the theoretical analysis,and thus the validity of simulation platform is verified,so it can be widely used in the research of MAC protocol in distributed wireless networks.
引文
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[4]张雅琼.基于NS2模拟软件的TCP协议实验设计[J].电子设计工程,2013,21(9):27-29.
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[8]Perahia E,Stacey R.Next generation wireless LANs:802.11 n and 802.11 ac[M].Cambridge uni-138versity press,2013.
[9]Tramarin F,Vitturi S,Luvisotto M,et al.On the use of IEEE 802.11n for industrial communications[J].IEEE Transactions on Industrial Informatics,2016,12(5):1877-1886.
[10]Liu J,Yao M,Qiu Z.Enhanced Block ACK method for A-MPDU transmission in IEEE 802.11 n/ac/ad WLANs[J].Electronics Letters,2015,52(2):159-161.
[11]柯志亨,程荣祥,邓德隽.NS-2仿真实验:多媒体和无线网络通信[M].北京:电子工业出版社,2009.
[12]王强,焦俊,孔文,等.基于NS2的固定和移动节点的无线传感网络的仿真[J].合肥学院学报:自然科学版,2015,25(2):24-28.
[13]Nagalakshmi S,Poonia R.Packet flow analysis using NS2 simulation[J].International Journal of Applied Research in Science and Engineering.2016,124(11):68-72.
[14]IEEE 802.11,Part 11:Wireless LAN medium access control(MAC)and physical layer(PHY)specifications[S].IEEE 802.11 Std.Mar.2012.
[15]Bozkurt A.Optimal delay analysis for real-time traffics over IEEE 802.11 wireless LANs[J].EURA-SIP Journal on Wireless Communications and Networking,2016,2016(1):52-65.
[16]Bellalta B.Throughput analysis in high density WLANs[J].IEEE Communications Letters,2017,21(3):592-595.
[2]Saif A,Othman M.SRA-MSDU:Enhanced A-MS-DU frame aggregation with selective retransmission in 802.11 n wireless networks[J].Journal of Network and Computer Applications,2013,36(4):1219-1229.
[3]Bhaskar D,Mallick B.Performance evaluation of mac protocol for IEEE 802.11,802.11Ext.WLANand IEEE 802.15.4 WPAN Using NS-2[J].International Journal of Computer Applications,2015,119(16):25-30.
[4]张雅琼.基于NS2模拟软件的TCP协议实验设计[J].电子设计工程,2013,21(9):27-29.
[5]Abbas A M H,Ali J,Rahman M A,et al.Comparative Investigation on CSMA/CA-Based MAC Protocols for Scalable Networks[C]//International Conference on ICCCE.IEEE,2016:428-433.
[6]Kim M,Choi C H.Hidden-node detection in ieee802.11n wireless lans[J].IEEE Transactions on Vehicular Technology,2013,62(6):2724-2734.
[7]Dai L,Sun X.A unified analysis of IEEE 802.11DCF networks:stability,throughput,and delay[J].IEEE Transactions on Mobile Computing,2013,12(8):1558-1572.
[8]Perahia E,Stacey R.Next generation wireless LANs:802.11 n and 802.11 ac[M].Cambridge uni-138versity press,2013.
[9]Tramarin F,Vitturi S,Luvisotto M,et al.On the use of IEEE 802.11n for industrial communications[J].IEEE Transactions on Industrial Informatics,2016,12(5):1877-1886.
[10]Liu J,Yao M,Qiu Z.Enhanced Block ACK method for A-MPDU transmission in IEEE 802.11 n/ac/ad WLANs[J].Electronics Letters,2015,52(2):159-161.
[11]柯志亨,程荣祥,邓德隽.NS-2仿真实验:多媒体和无线网络通信[M].北京:电子工业出版社,2009.
[12]王强,焦俊,孔文,等.基于NS2的固定和移动节点的无线传感网络的仿真[J].合肥学院学报:自然科学版,2015,25(2):24-28.
[13]Nagalakshmi S,Poonia R.Packet flow analysis using NS2 simulation[J].International Journal of Applied Research in Science and Engineering.2016,124(11):68-72.
[14]IEEE 802.11,Part 11:Wireless LAN medium access control(MAC)and physical layer(PHY)specifications[S].IEEE 802.11 Std.Mar.2012.
[15]Bozkurt A.Optimal delay analysis for real-time traffics over IEEE 802.11 wireless LANs[J].EURA-SIP Journal on Wireless Communications and Networking,2016,2016(1):52-65.
[16]Bellalta B.Throughput analysis in high density WLANs[J].IEEE Communications Letters,2017,21(3):592-595.