In recent years,with the maturity and popularity of Wi-Fi technology,wireless hotspots have been deployed on a large scale in public places.But at the same time,it brings many security issues that cannot be ignored.Am...In recent years,with the maturity and popularity of Wi-Fi technology,wireless hotspots have been deployed on a large scale in public places.But at the same time,it brings many security issues that cannot be ignored.Among them,the fake access point attack is a very serious threat in wireless local area network.In this paper,we propose a method to detect fake access points in wireless local area network.First,our detection method is passive,which means there is almost no additional traffic will be generated during the program’s operation.Second,different from many existing methods,our method allows the detection device to change position,the move will be perceived and the fingerprint will be updated automatically.Third,we use a variety of features as fingerprints to describe an access point better and improve efficiency.At last,the method we propose is more in line with the actual scene and has been proved effective by experiments.展开更多
Energy efficiency has become one of the most important issues in wireless body area network(WBAN).In this paper,an energy-efficient medium access control(MAC)protocol for WBAN is proposed based on human body posture u...Energy efficiency has become one of the most important issues in wireless body area network(WBAN).In this paper,an energy-efficient medium access control(MAC)protocol for WBAN is proposed based on human body posture under walking scenery.Due to person's movements,WBAN is a dynamic network,which means that traditional static protocols are no more suitable for it.For solving this problem,firstly,the feature of human walking at a constant speed is analyzed and we divide a spell of movements into a sequence of key frames just like a video constituted by numbers of continuous frames.As a result,the dynamic walking process is translated into several static postures,which the static MAC protocol could be used for.Secondly,concerning the performance of network lifetime,we design a posture-aware approach for lifetime maximization(PA-DPLM).With analytical and simulation results provided,we demonstrate that PA-DPLM protocol is energy-efficient and can be used under constant speed walking scenery.展开更多
基金This work is supported by the NSFC(Grant Nos.61671087,61962009,61003287)the Fok Ying Tong Education Foundation(Grant No.131067)+2 种基金the Major Scientific and Technological Special Project of Guizhou Province(Grant No.20183001)the Foundation of State Key Laboratory of Public Big Data(Grant No.2018BDKFJJ018)the High-quality and Cutting-edge Disciplines Construction Project for Universities in Beijing(Internet Information,Communication University of China),the Fundamental Research Funds for the Central Universities,and the Fundamental Research Funds for the Central Universities(No.2019XD-A02).
文摘In recent years,with the maturity and popularity of Wi-Fi technology,wireless hotspots have been deployed on a large scale in public places.But at the same time,it brings many security issues that cannot be ignored.Among them,the fake access point attack is a very serious threat in wireless local area network.In this paper,we propose a method to detect fake access points in wireless local area network.First,our detection method is passive,which means there is almost no additional traffic will be generated during the program’s operation.Second,different from many existing methods,our method allows the detection device to change position,the move will be perceived and the fingerprint will be updated automatically.Third,we use a variety of features as fingerprints to describe an access point better and improve efficiency.At last,the method we propose is more in line with the actual scene and has been proved effective by experiments.
基金supported by the National Natural Science Foundation of China(No.61074165 and No.61273064)Jilin Provincial Science & Technology Department Key Scientific and Technological Project(No.20140204034GX)Jilin Province Development and Reform Commission Project(No.2015Y043)
文摘Energy efficiency has become one of the most important issues in wireless body area network(WBAN).In this paper,an energy-efficient medium access control(MAC)protocol for WBAN is proposed based on human body posture under walking scenery.Due to person's movements,WBAN is a dynamic network,which means that traditional static protocols are no more suitable for it.For solving this problem,firstly,the feature of human walking at a constant speed is analyzed and we divide a spell of movements into a sequence of key frames just like a video constituted by numbers of continuous frames.As a result,the dynamic walking process is translated into several static postures,which the static MAC protocol could be used for.Secondly,concerning the performance of network lifetime,we design a posture-aware approach for lifetime maximization(PA-DPLM).With analytical and simulation results provided,we demonstrate that PA-DPLM protocol is energy-efficient and can be used under constant speed walking scenery.
