全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

一种新的无线网络信号干扰累加捕获模型

Keywords: 干扰模型,物理层捕获模型,信号累加

Full-Text   Cite this paper   Add to My Lib

Abstract:

目前的模拟器大都基于传统的无线网络物理层捕获模型,然而,由于无线硬件技术的发展,实际的无线网卡已经具备了在先后到达接口的多个信号中进行有选择捕获的高级接收功能,不论接收的信号是否为最先到达接口的.目前还没看到有模拟器实现高级物理层捕获算法,使得理论研究和实际情况脱节.本文试图解决这样的问题,首先,给出了一个基于信号累加机制的干扰模型,在此基础上提出了一个新的高级捕获模型,用模拟器进行了实现,并给出了仿真分析,其模拟结果证明,节点密度增加不到3倍的情况下,丢包率增加了近5.5倍,足以说明信号累加效应带来的巨大影响.

References

[1]  Bianchi G. Performance analysis of the IEEE 802.11 distributed coordination function[J]. IEEE Journal on Selected Areas in Communications,2000,18(3):535-547.
[2]  Daneshgaran F,Laddomada M. Saturation throughput analysis of IEEE 802.11 in the presence of non ideal transmission channel and capture effects[J]. IEEE Transactions on Communications,2008,56(7):1 178-118.
[3]  Kochut A. Sniffing out the correct physical layer capture model in 802.11b[C]//12th International Conference on Network Protocols. Berlin:IEEE Press,2004:252-261.
[4]  Garcia-Luna-Aceves M M C A. A scalable model for channel access protocols in multihop ad hoc networks[C]//Proceedings of the 10th Annual International Conference on Mobile Computing and Networking. NY:ACM Press,2004:330-344.
[5]  Garcia-Luna-Aceves Y W A J. Performance of collision avoidance protocols in single-channel ad hoc networks[J]. Wireless Networks,2004,10(5):495-506.
[6]  Gupta H S C A. Performance modeling of asynchronous data transfer methods of IEEE 802.11 MAC protocol[J]. Wireless Network,1997,3(3):217-234.
[7]  Ware C. Modelling of capture behaviour in IEEE 802.11 radio modems[C]//IEEE International Conference on Network Protocols. Bucharest:IEEE Press,2001:213-217.
[8]  Chang H. Fairness and physical layer capture in random access networks[C]//4th Annual IEEE Communications Society Conference on Sensor,Mesh and Ad Hoc Communications and Networks,SECON’07. San Diego:IEEE Press,2007:381-390.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133