| WPAN应用环境下跳频网络干扰分析及其容量改善 |
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| 引用本文： | 叶芝慧,沈连丰,宋铁成.WPAN应用环境下跳频网络干扰分析及其容量改善[J].东南大学学报,2003,19(3):205-211. |
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| 作者姓名： | 叶芝慧 沈连丰 宋铁成 |
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| 作者单位： | [1]解放军理工大学通信工程学院，南京210016 [2]东南大学移动通信国家重点实验室，南京210096 |
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| 基金项目： | TheNationalNaturalScienceFoundationofChina(60 0 72 0 16)，theKeyScienceTechnologyResearchProjectoftheMinistryofEducation (0 2 171) |
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| 摘 要： | 对无线个域网应用环境下采用跳频方案的蓝牙网络和IEEE 802．1lFHSS网络之间的共存性问题进行了研究，通过容量分析和系统仿真，比较了它们的相互影响．在此基础上，提出了采用包负荷长度分段自适应的方法来提高IEEE802．1lFHSS网络的抗干扰性能，并对所提方案进行了分析仿真．结果表明，IEEE802．11WLAN标准的内在机制能够支持本提出的方法，改善了抗干扰的鲁棒性，并且随着蓝牙干扰网络数量的增加，采用自适应方案的IEEE802．1lFHSS网络的抗干扰性能明显增强，网络容量的下降得到有效缓解．中所采用的容量分析和包负荷长度分段自适应方案也可以推广到其他FHSS网络．
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| 关 键 词： | WPAN 无线个域网 跳频 蓝牙网络 IEEE802.1lFHSS网络 网络容量 抗干扰性能 包负荷长度分段自适应 |
Interference analysis and improvement of capacity reduction for FHSS networks in WPAN application environment |
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| Ye Zhihui,Shen Lianfeng,Song Tiecheng.Interference analysis and improvement of capacity reduction for FHSS networks in WPAN application environment[J].Journal of Southeast University(English Edition),2003,19(3):205-211. |
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| Authors: | Ye Zhihui Shen Lianfeng Song Tiecheng |
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| Abstract: | The coexistence between Bluetooth system and IEEE 802.11 frequency hopping spread spectrum (FHSS) equipment is analyzed. Based on the capacity formulae and system simulation, the inter-affection between these networks is compared. A fragment adaptive solution of packet payload length is presented, which can be used to improve the capacity reduction of IEEE 802.11 FHSS network. Analysis results show that the IEEE 802.11 WLAN standard with its inherent mechanism supports this fragment length adaptive algorithm. With the increasing of Bluetooth interfering networks, this adaptive solution can effectively relieve capacity decreasing of IEEE 802.11 FHSS network. The capacity analysis method and adaptive algorithm adopted in this paper can also be generalized into other FHSS networks. |
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| Keywords: | WPAN frequency-hopping network capacity Bluetooth technology IEEE 802 11 FHSS network fragment adaptive of packet payload length |
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