IEEE802.11
IEEE802.11的相關文獻在1997年到2022年內(nèi)共計606篇,主要集中在自動化技術、計算機技術、無線電電子學、電信技術、鐵路運輸
等領域,其中期刊論文590篇、會議論文16篇、專利文獻706篇;相關期刊304種,包括電子學報、電子產(chǎn)品世界、電子與信息學報等;
相關會議14種,包括2011年中國智能自動化會議、2010亞太地區(qū)信息論學術會議)、2008世界通信大會(ICC2008)中國論壇等;IEEE802.11的相關文獻由1045位作者貢獻,包括呂娜、徐德民、鄒向毅等。
IEEE802.11
-研究學者
- 呂娜
- 徐德民
- 鄒向毅
- 魏急波
- 吳詩其
- 李建東
- 楊宗凱
- 程文青
- 趙海濤
- 嚴少虎
- 劉威
- 宋安
- 李向龍
- 王杉
- 石春
- 程時端
- 舒炎泰
- 韓旭東
- 習勇
- 何書前
- 劉乃安
- 卓永寧
- 吳建平
- 張亮
- 張岳彤
- 張春業(yè)
- 曹建海
- 李波
- 李賀武
- 楊士中
- 林孝康
- 王楠
- 胡志剛
- 趙力強
- 鄧正杰
- 鄒仕洪
- 郭偉
- 樂光新
- 于瀅
- 何宏
- 侯紫峰
- 冷甦鵬
- 劉元安
- 劉剛
- 劉宴兵
- 劉文君
- 劉曉龍
- 劉涌
- 劉磊
- 劉純勤
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Mohammad Z.Masoud;
Yousef Jaradat;
Mohammad Alia
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摘要:
IEEE802.11,known as WiFi has proliferated in the last decade.It can be found in smartphones,laptops,smart TVs and surveillance cameras.This popularity has revealed many issues in health,data privacy and security.In this work,a WiFi measurement study has been conducted in Amman,the capital city of Jordan.An Android App has been written to harvest WiFi information of the transmitted frames of any surrounding Access points(APs).More than 240,000 APs information has been harvested in this work.The harvested data have been analyzed to find statistics ofWiFi devices in this city.Moreover,three power distribution models have been derived from the data for three different areas,closed,open and hybrid areas.In addition,the collected data revealed that the SSID can be leveraged as a landmark for the access points(APs).To this end,SSIDtrack algorithm is proposed to track shoppers/walkers in closed areas,such as malls to find their walking route utilizing only the SSID information collected from the surrounding area.The algorithm has been tested in two different malls that consist of four different floors.The accuracy recorded for the algorithm acceded 95%.
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Bilal Khan;
Danish Shehzad;
Numan Shafi;
Ga-Young Kim;
Muhammad Umar Aftab
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摘要:
Nowadays multiple wireless communication systems operate in industrial environments side by side.In such an environment performance of one wireless network can be degraded by the collocated hostile wireless network having higher transmission power or higher carrier sensing threshold.Unlike the previous research works which considered IEEE 802.15.4 for the Industrial Wireless communication systems(iWCS)this paper examines the coexistence of IEEE 802.11 based iWCS used for delay-stringent communication in process automation and gWLAN(general-purpose WLAN)used for non-real time communication.In this paper,we present a Markov chain-based performance model that described the transmission failure of iWCS due to geographical collision with gWLAN.The presented analytic model accurately determines throughput,packet transaction delay,and packet loss probability of iWCS when it is collocated with gWLAN.The results of the Markov model match more than 90%with our simulation results.Furthermore,we proposed an adaptive transmission power control technique for iWCS to overcome the potential interferences caused by the gWLAN transmissions.The simulation results show that the proposed technique significantly improves iWCS performance in terms of throughput,packet transaction,and cycle period reduction.Moreover,it enables the industrial network for the use of delay critical applications in the presence of gWLAN without affecting its performance.
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楊琳
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摘要:
末端無線局域網(wǎng)的服務質(zhì)量在很大程度上決定著用戶對家庭寬帶業(yè)務的感知,通過對無線局域網(wǎng)的原理機制進行分析,進而針對不同的痛點制定相應的部署策略.以期利用協(xié)調(diào)一致的系統(tǒng)性方法達到降低家庭寬帶業(yè)務用戶投訴,有效提升用戶感知的目的.
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崔蓓蓓
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摘要:
在4G和5G時代,WLAN與廣域網(wǎng)有著天然的聯(lián)系,已成為移動通信網(wǎng)絡的一個重要組成部分.本文研究在WLAN的集中模式,WTP和AC之間的CAPWAP傳輸機制,WTP和STA之間的雙頻接入模式,從IEEE802.11協(xié)議的層次,通過STA接入AP的工作方式整體論述雙頻Wi-Fi傳輸技術的可靠性及優(yōu)越性.
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沈勁桐
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摘要:
隨著科技的發(fā)展,移動終端設備大幅度增加,個人電腦、手持設備(如PDA、手機)等其他無線終端層出不窮,無線網(wǎng)絡的需求量也越來越大,無線局域網(wǎng)逐漸的從有線補充的方式變更為公共性無線局域網(wǎng).本文通過校園網(wǎng)絡建設的實踐工作經(jīng)驗,將對無線網(wǎng)絡的規(guī)劃以及優(yōu)化的技術進行分析,對遇到的問題進行說明并提供解決方案.
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李曉輝;
李毅;
劉乃安;
劉晉東
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摘要:
設計和實現(xiàn)了一種基于LabVIEW和USRP的IEEE 802.11無線局域網(wǎng)虛擬仿真平臺.闡述了IEEE 802.11的關鍵特征和基于NI USRP的IEEE 802.11系統(tǒng)架構設計,包括FPGA部分和上位機部分.給出仿真平臺的測試結果與分析.該平臺是一個靈活的演示、開發(fā)、驗證平臺,有助于對該領域新技術的認識和探討.基于該虛擬仿真實驗平臺,可開發(fā)更多形式的IEEE 802.11原型系統(tǒng)或進行關鍵技術驗證.
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張朝柱;
黃文鈺;
尹冬梅
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摘要:
在眾多的IEEE 802.11 DCF機制分析模型中,集中分析了同質(zhì)業(yè)務(例如數(shù)據(jù)包到達速率相同)網(wǎng)絡的性能,僅有少量的文獻聚焦于異構混合業(yè)務(飽和與非飽和工作模式同時存在)網(wǎng)絡,而在目前的研究中,對網(wǎng)絡的不飽和性及退避時隙凍結等問題歸納分析得并不準確.結合M/G/1排隊模型,考慮了DCF機制的退避凍結狀態(tài)及有限的重傳次數(shù)等問題,提出了一種全新的改進二維Markov鏈路模型,用于分析異構混合業(yè)務成分下的DCF機制的性能.通過對模型的穩(wěn)態(tài)求解,提出的模型能夠分析并計算協(xié)議中的3個重要的參數(shù):系統(tǒng)吞吐量、傳輸時延和傳輸丟包率.理論仿真與分析結果表明,該模型不僅能夠更為準確地分析同質(zhì)業(yè)務下DCF機制的性能,同時充分考慮到了實際應用中的業(yè)務情況,還能夠更準確、更完善地分析異構混合業(yè)務成分下的DCF機制的性能.
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胡從川;
龔曉莉;
楊振亞;
王凱
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摘要:
在智能電網(wǎng)中,為了提高地產(chǎn)前裝用戶端的電能使用效率,文中提出了一種基于IEEE 802.11等通信技術的智能用電能量管理系統(tǒng).該系統(tǒng)設計了地產(chǎn)前段用戶端的智能插座和電表,使用了以IEEE 802.11協(xié)議為標準的多種網(wǎng)絡通信設備,最終構建了基于多種通信技術的智能用電能量管理系統(tǒng).需要說明的是,該系統(tǒng)適用于樓宇、家庭等多種應用場合,具有用電監(jiān)測和控制等多種功能.同時由于使用開放式的平臺設計,本系統(tǒng)還具有較強的兼容性和擴展性.
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WANG Hong-yan;
QIAO Ji-hong
- 《2011年中國智能自動化會議》
| 2011年
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摘要:
Considering the whole impact of mechanical and rnelectrical system nonlinearities, the direct feedback rnlinearization (DFL) rncontrol strategy was used in the AC all-electrical rntank gun control system to achieve a completely rndynamic decoupling model. On the rnbasis of DEF, in order to reduce the effect of rnchanges in the system parameters and load torque, an rnadaptive wavelet neural network rncompensator to compensate for DEF error is proposed, rnwhich can reduce DEF control law reliance on the tank rngun system model,rnand further enhance the speed tracking performance, rnrobustness and adaptive capacity of AC tank gun rncontrol system. Computer rnsimulations show that the tracking accuracy is much rnbetter and the control system has strong adaptability rnand robustness.
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WANG Hong-yan;
QIAO Ji-hong
- 《2011年中國智能自動化會議》
| 2011年
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摘要:
Considering the whole impact of mechanical and rnelectrical system nonlinearities, the direct feedback rnlinearization (DFL) rncontrol strategy was used in the AC all-electrical rntank gun control system to achieve a completely rndynamic decoupling model. On the rnbasis of DEF, in order to reduce the effect of rnchanges in the system parameters and load torque, an rnadaptive wavelet neural network rncompensator to compensate for DEF error is proposed, rnwhich can reduce DEF control law reliance on the tank rngun system model,rnand further enhance the speed tracking performance, rnrobustness and adaptive capacity of AC tank gun rncontrol system. Computer rnsimulations show that the tracking accuracy is much rnbetter and the control system has strong adaptability rnand robustness.
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WANG Hong-yan;
QIAO Ji-hong
- 《2011年中國智能自動化會議》
| 2011年
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摘要:
Considering the whole impact of mechanical and rnelectrical system nonlinearities, the direct feedback rnlinearization (DFL) rncontrol strategy was used in the AC all-electrical rntank gun control system to achieve a completely rndynamic decoupling model. On the rnbasis of DEF, in order to reduce the effect of rnchanges in the system parameters and load torque, an rnadaptive wavelet neural network rncompensator to compensate for DEF error is proposed, rnwhich can reduce DEF control law reliance on the tank rngun system model,rnand further enhance the speed tracking performance, rnrobustness and adaptive capacity of AC tank gun rncontrol system. Computer rnsimulations show that the tracking accuracy is much rnbetter and the control system has strong adaptability rnand robustness.
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WANG Hong-yan;
QIAO Ji-hong
- 《2011年中國智能自動化會議》
| 2011年
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摘要:
Considering the whole impact of mechanical and rnelectrical system nonlinearities, the direct feedback rnlinearization (DFL) rncontrol strategy was used in the AC all-electrical rntank gun control system to achieve a completely rndynamic decoupling model. On the rnbasis of DEF, in order to reduce the effect of rnchanges in the system parameters and load torque, an rnadaptive wavelet neural network rncompensator to compensate for DEF error is proposed, rnwhich can reduce DEF control law reliance on the tank rngun system model,rnand further enhance the speed tracking performance, rnrobustness and adaptive capacity of AC tank gun rncontrol system. Computer rnsimulations show that the tracking accuracy is much rnbetter and the control system has strong adaptability rnand robustness.
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WANG Hong-yan;
QIAO Ji-hong
- 《2011年中國智能自動化會議》
| 2011年
-
摘要:
Considering the whole impact of mechanical and rnelectrical system nonlinearities, the direct feedback rnlinearization (DFL) rncontrol strategy was used in the AC all-electrical rntank gun control system to achieve a completely rndynamic decoupling model. On the rnbasis of DEF, in order to reduce the effect of rnchanges in the system parameters and load torque, an rnadaptive wavelet neural network rncompensator to compensate for DEF error is proposed, rnwhich can reduce DEF control law reliance on the tank rngun system model,rnand further enhance the speed tracking performance, rnrobustness and adaptive capacity of AC tank gun rncontrol system. Computer rnsimulations show that the tracking accuracy is much rnbetter and the control system has strong adaptability rnand robustness.
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WANG Hong-yan;
QIAO Ji-hong
- 《2011年中國智能自動化會議》
| 2011年
-
摘要:
Considering the whole impact of mechanical and rnelectrical system nonlinearities, the direct feedback rnlinearization (DFL) rncontrol strategy was used in the AC all-electrical rntank gun control system to achieve a completely rndynamic decoupling model. On the rnbasis of DEF, in order to reduce the effect of rnchanges in the system parameters and load torque, an rnadaptive wavelet neural network rncompensator to compensate for DEF error is proposed, rnwhich can reduce DEF control law reliance on the tank rngun system model,rnand further enhance the speed tracking performance, rnrobustness and adaptive capacity of AC tank gun rncontrol system. Computer rnsimulations show that the tracking accuracy is much rnbetter and the control system has strong adaptability rnand robustness.
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