Pub Date : 2022-01-01DOI: 10.1007/978-3-030-98002-3
{"title":"Cognitive Radio Oriented Wireless Networks and Wireless Internet: 16th EAI International Conference, CROWNCOM 2021, Virtual Event, December 11, 2021, and 14th EAI International Conference, WiCON 2021, Virtual Event, November 9, 2021, Proceedings","authors":"","doi":"10.1007/978-3-030-98002-3","DOIUrl":"https://doi.org/10.1007/978-3-030-98002-3","url":null,"abstract":"","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91345025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-07-05DOI: 10.1109/WIRELESSVITAE.2011.5940876
V. Oleshchuk, G. M. Køien
In this paper we analyze security and privacy aspects of the cloud. We take a long-term view since the scope of privacy is potentially the lifetime of the privacy subject. We investigate trust issues and privacy aspects for cloud service users, using subjective logic as a primary tool. We also present promising solution for credible privacy in a cloud environment.
{"title":"Security and privacy in the cloud a long-term view","authors":"V. Oleshchuk, G. M. Køien","doi":"10.1109/WIRELESSVITAE.2011.5940876","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940876","url":null,"abstract":"In this paper we analyze security and privacy aspects of the cloud. We take a long-term view since the scope of privacy is potentially the lifetime of the privacy subject. We investigate trust issues and privacy aspects for cloud service users, using subjective logic as a primary tool. We also present promising solution for credible privacy in a cloud environment.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":"49 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73547034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-07-05DOI: 10.1109/WIRELESSVITAE.2011.5940931
A. Michalas, N. Komninos, N. Prasad
This paper proposes a multiplayer game to prevent Distributed Denial of Service attack (DDoS) in ad hoc networks. The multiplayer game is based on game theory and cryptographic puzzles. We divide requests from nodes into separate groups which decreases the ability of malicious nodes to cooperate with one another in order to effectively make a DDoS attack. Finally, through our experiments we have shown that the total overhead of the multiplayer game as well as the the total time that each node needs to be served is affordable for devices that have limited resources and for environments like ad hoc networks where nodes must exchange information really fast.
{"title":"Multiplayer game for DDoS attacks resilience in ad hoc networks","authors":"A. Michalas, N. Komninos, N. Prasad","doi":"10.1109/WIRELESSVITAE.2011.5940931","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940931","url":null,"abstract":"This paper proposes a multiplayer game to prevent Distributed Denial of Service attack (DDoS) in ad hoc networks. The multiplayer game is based on game theory and cryptographic puzzles. We divide requests from nodes into separate groups which decreases the ability of malicious nodes to cooperate with one another in order to effectively make a DDoS attack. Finally, through our experiments we have shown that the total overhead of the multiplayer game as well as the the total time that each node needs to be served is affordable for devices that have limited resources and for environments like ad hoc networks where nodes must exchange information really fast.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":"25 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73191351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-07-05DOI: 10.1109/WIRELESSVITAE.2011.5940809
P. Selvan, S. Raghavan
A novel miniature coplanar waveguide (CPW) fed octagon shaped slot antenna used for wireless local area network is proposed. The antenna is designed on a RT/duriod 5880 substrate with a permittivity of 2.2 and size of 16.5mm × 20 mm × 1.6mm to generate single resonant mode with bandwidth of 0.94 GHz (5.095 GHz–6.035 GHz) covering 5.2/5.8 GHz, antenna gain 3.55 dBi, VSWR 5.5GHz–1.062 and return loss (S11)–30.42 dB, respectively. The radiation patterns are broadside and bidirectional in the E — plane and almost omnidirectional in the H-plane. This antenna is suitable for wireless local area network applications. The fundamental parameters of the antenna such as return loss, VSWR, gain and polarization which meets the acceptable antenna standards are obtained. Simulation tool, based on the method of moments ZELAND IE3D version 12.0 has been used to analyze and optimize the antenna. These properties with compact and uniplanar structure make the antenna suitable in WLAN application.
{"title":"A novel compact CPW-fed octagan shaped slot antenna for WLAN application","authors":"P. Selvan, S. Raghavan","doi":"10.1109/WIRELESSVITAE.2011.5940809","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940809","url":null,"abstract":"A novel miniature coplanar waveguide (CPW) fed octagon shaped slot antenna used for wireless local area network is proposed. The antenna is designed on a RT/duriod 5880 substrate with a permittivity of 2.2 and size of 16.5mm × 20 mm × 1.6mm to generate single resonant mode with bandwidth of 0.94 GHz (5.095 GHz–6.035 GHz) covering 5.2/5.8 GHz, antenna gain 3.55 dBi, VSWR 5.5GHz–1.062 and return loss (S11)–30.42 dB, respectively. The radiation patterns are broadside and bidirectional in the E — plane and almost omnidirectional in the H-plane. This antenna is suitable for wireless local area network applications. The fundamental parameters of the antenna such as return loss, VSWR, gain and polarization which meets the acceptable antenna standards are obtained. Simulation tool, based on the method of moments ZELAND IE3D version 12.0 has been used to analyze and optimize the antenna. These properties with compact and uniplanar structure make the antenna suitable in WLAN application.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":"12 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84148898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-07-05DOI: 10.1109/WIRELESSVITAE.2011.5940842
N. Nakajima, Tomoko Yamazaki, W. Ni
MIMO is one of the important technologies in LTE, WiMAX and LTE-Advanced for improving spectrum efficiency. However, it is not easy to make a compact MIMO antenna for portable terminals, keeping high performance. One of the problems is mutual coupling among the antennas. This reduces the efficiency of the antenna. In this paper, a 3 dB hybrid is used to cancel the mutual coupling. This idea can be applied to 2N (N is integer) number of MIMO antennas. In addition, by using tunable impedance matching circuits, wide operational bandwidth is available. Experiments were carried out for 2 MIMO antennas at 2.4–2.6 GHz band.
{"title":"Mutual coupling cancellation for compact MIMO antenna with 3 dB hybrid","authors":"N. Nakajima, Tomoko Yamazaki, W. Ni","doi":"10.1109/WIRELESSVITAE.2011.5940842","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940842","url":null,"abstract":"MIMO is one of the important technologies in LTE, WiMAX and LTE-Advanced for improving spectrum efficiency. However, it is not easy to make a compact MIMO antenna for portable terminals, keeping high performance. One of the problems is mutual coupling among the antennas. This reduces the efficiency of the antenna. In this paper, a 3 dB hybrid is used to cancel the mutual coupling. This idea can be applied to 2N (N is integer) number of MIMO antennas. In addition, by using tunable impedance matching circuits, wide operational bandwidth is available. Experiments were carried out for 2 MIMO antennas at 2.4–2.6 GHz band.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":"10 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76745424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-07-05DOI: 10.1109/WIRELESSVITAE.2011.5940930
Arun Joy, Vijaykumar Chakka
This paper presents a MIMO two-way relaying scheme where the transceiver filter at the Relay Station (RS) processes the data using a variant of the Affine Projection Algorithm (APA), known as Partial Rank Algorithm (PRA). The relaying technique used is Amplify and Forward scheme (AF). The modulation technique used at the nodes S1 and S2 is Quadrature Phase Shift Keying (QPSK). The performance of PRA algorithm is verified by comparing its Mean-Square error performance (MSE) and Bit Error Rate (BER) with that of a transceiver filter based on Normalized Least Mean Square (NLMS) algorithm. The computational complexity of the algorithm is also tabulated.
{"title":"An Affine Projection Algorithm based transceiver filter for MIMO two-way relaying scheme","authors":"Arun Joy, Vijaykumar Chakka","doi":"10.1109/WIRELESSVITAE.2011.5940930","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940930","url":null,"abstract":"This paper presents a MIMO two-way relaying scheme where the transceiver filter at the Relay Station (RS) processes the data using a variant of the Affine Projection Algorithm (APA), known as Partial Rank Algorithm (PRA). The relaying technique used is Amplify and Forward scheme (AF). The modulation technique used at the nodes S1 and S2 is Quadrature Phase Shift Keying (QPSK). The performance of PRA algorithm is verified by comparing its Mean-Square error performance (MSE) and Bit Error Rate (BER) with that of a transceiver filter based on Normalized Least Mean Square (NLMS) algorithm. The computational complexity of the algorithm is also tabulated.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":"8 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87881122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-07-05DOI: 10.1109/WIRELESSVITAE.2011.5940834
Roberto Maurizio Pellegrini, S. Persia, Diego Volponi, G. Marcone
The scope of this work is to investigate the RF behavior of ZigBee devices operating within a real environment. On this purpose a Wireless Sensor Network (WSN) ZigBee based has been deployed in a specific indoor context. Three different RSSI measurement campaigns have been carried out to characterize the main propagation features. On the basis of the experimental results it has been possible to analyze the different factors that affect the measurements, such as external factors (e.g. multipath, fading) or internal ones (e.g. hardware device, integrated antennas). The first campaign, made nearby the transmitter, was performed to study the internal and external factor effects, the second one to extend the range of the first experiment, and the latter to investigate the propagation trying to isolate the external phenomena. Furthermore to deeply analyze the ZigBee behavior we have compared the measurements with a suitable propagation model. This work allows the definition of the main performance requirements for a ZigBee Sensor Network deployed in real building environment.
{"title":"RF propagation analysis for ZigBee Sensor Network using RSSI measurements","authors":"Roberto Maurizio Pellegrini, S. Persia, Diego Volponi, G. Marcone","doi":"10.1109/WIRELESSVITAE.2011.5940834","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940834","url":null,"abstract":"The scope of this work is to investigate the RF behavior of ZigBee devices operating within a real environment. On this purpose a Wireless Sensor Network (WSN) ZigBee based has been deployed in a specific indoor context. Three different RSSI measurement campaigns have been carried out to characterize the main propagation features. On the basis of the experimental results it has been possible to analyze the different factors that affect the measurements, such as external factors (e.g. multipath, fading) or internal ones (e.g. hardware device, integrated antennas). The first campaign, made nearby the transmitter, was performed to study the internal and external factor effects, the second one to extend the range of the first experiment, and the latter to investigate the propagation trying to isolate the external phenomena. Furthermore to deeply analyze the ZigBee behavior we have compared the measurements with a suitable propagation model. This work allows the definition of the main performance requirements for a ZigBee Sensor Network deployed in real building environment.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":"9 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86849654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-07-05DOI: 10.1109/WIRELESSVITAE.2011.5940877
J. Lauritzen, E. Årsand, K. van Vuurden, J. G. Bellika, O. Hejlesen, Gunnar Hartvig-sen
Illness in Type 1 Diabetes Mellitus (T1DM) patients makes it complicated to perform sufficient self-care, resulting in prolonged episodes of hyperglycemia and fluctuating blood glucose (BG) concentrations. Prolonged episodes of hyperglycemia elevate the risk of the patient developing diabetic complications, which makes infections such as common cold, influenza and influenza like illness more harmful for T1DM patients than the normal population. TTL, NST and AAU are researching a method of predicting illness in T1DM patients, using patient observable parameters. Daily BG measurements are identified as a relevant patient observable parameter, due to early rise when infected and elevated HbA1C during illness. A Smartphone based system is developed that allows patients to monitor BG concentrations and report symptoms of illness and illness. Data gathered by patients through use of this device, will be used to test the hypothesis that changes in daily BG measurements can be used to predict illness in T1DM patients, before symptoms onset. A successful prediction model will enable patients to get early indication of upcoming illness, before they are bedridden. Patients can thus actively take precautions to avoid or shorten illness episodes or make these less severe and/or have healthy BG concentrations during illness. This project is breaking new grounds by detecting illness before the onset of symptoms and illness, and an illness prediction model using patient observable parameters will be an important advance in the field of disease surveillance and prediction.
{"title":"Towards a mobile solution for predicting illness in Type 1 Diabetes Mellitus: Development of a prediction model for detecting risk of illness in Type 1 Diabetes prior to symptom onset","authors":"J. Lauritzen, E. Årsand, K. van Vuurden, J. G. Bellika, O. Hejlesen, Gunnar Hartvig-sen","doi":"10.1109/WIRELESSVITAE.2011.5940877","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940877","url":null,"abstract":"Illness in Type 1 Diabetes Mellitus (T1DM) patients makes it complicated to perform sufficient self-care, resulting in prolonged episodes of hyperglycemia and fluctuating blood glucose (BG) concentrations. Prolonged episodes of hyperglycemia elevate the risk of the patient developing diabetic complications, which makes infections such as common cold, influenza and influenza like illness more harmful for T1DM patients than the normal population. TTL, NST and AAU are researching a method of predicting illness in T1DM patients, using patient observable parameters. Daily BG measurements are identified as a relevant patient observable parameter, due to early rise when infected and elevated HbA1C during illness. A Smartphone based system is developed that allows patients to monitor BG concentrations and report symptoms of illness and illness. Data gathered by patients through use of this device, will be used to test the hypothesis that changes in daily BG measurements can be used to predict illness in T1DM patients, before symptoms onset. A successful prediction model will enable patients to get early indication of upcoming illness, before they are bedridden. Patients can thus actively take precautions to avoid or shorten illness episodes or make these less severe and/or have healthy BG concentrations during illness. This project is breaking new grounds by detecting illness before the onset of symptoms and illness, and an illness prediction model using patient observable parameters will be an important advance in the field of disease surveillance and prediction.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":"86 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86912599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-07-05DOI: 10.1109/WIRELESSVITAE.2011.5940837
M. Mueck, D. Noguet
Regulators around the world are currently setting rules and requirements that will allow for mass-market access to TV White Spaces. It is expected that the opening of those frequency bands to the consumer market will lead to a dramatic increase of spectrum exploitation efficiency in highly appealing frequency bands: In Europe, the frequency bands between 470 MHz and 790 MHz are considered and the inherent signal propagation properties are largely superior to those in standard cellular bands, for example, in 900 MHz and 2 GHz. This paper will present related use cases for the exploitation of TV White Space as they are currently discussed in the ETSI Reconfigurable Radio Systems Technical Committee. Then, the availability of TV White Spaces in Europe is investigated, followed by an overview of recent regulatory activities on the European Commission level. In particular, expectations related to a new revision of the European R&TTE Directive are presented which represents the basic regulatory framework in Europe.
{"title":"TV White Space standardization and regulation in Europe","authors":"M. Mueck, D. Noguet","doi":"10.1109/WIRELESSVITAE.2011.5940837","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940837","url":null,"abstract":"Regulators around the world are currently setting rules and requirements that will allow for mass-market access to TV White Spaces. It is expected that the opening of those frequency bands to the consumer market will lead to a dramatic increase of spectrum exploitation efficiency in highly appealing frequency bands: In Europe, the frequency bands between 470 MHz and 790 MHz are considered and the inherent signal propagation properties are largely superior to those in standard cellular bands, for example, in 900 MHz and 2 GHz. This paper will present related use cases for the exploitation of TV White Space as they are currently discussed in the ETSI Reconfigurable Radio Systems Technical Committee. Then, the availability of TV White Spaces in Europe is investigated, followed by an overview of recent regulatory activities on the European Commission level. In particular, expectations related to a new revision of the European R&TTE Directive are presented which represents the basic regulatory framework in Europe.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":"23 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79096489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-07-05DOI: 10.1109/WIRELESSVITAE.2011.5940932
A. Subbarao, S. Raghavan, P. P. S. Rao
A novel compact Ultra wideband antenna fed by CPW is presented. The antenna has a size of 23 mm × 27 mm. It provides band width ranging from 2.7 GHz to 10.6 GHz. The antenna can be easily integrated with radio frequency circuit for low cost. Details of antenna are presented with parametric study. The bandwidth is varied by varying the intrusion depth L2 and distance ‘g’ between conducting plane and ground and thus ultra wideband with is obtained. The antenna is Omni directional in operating range and it has good radiation efficiency. The fundamental parameters return loss, VSWR, radiation pattern are obtained, which meet standard specifications. Method of moments based IE3D simulator is used to analyze antenna.
{"title":"A miniaturized CPW-fed rocket shaped UWB antenna for wireless applications","authors":"A. Subbarao, S. Raghavan, P. P. S. Rao","doi":"10.1109/WIRELESSVITAE.2011.5940932","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940932","url":null,"abstract":"A novel compact Ultra wideband antenna fed by CPW is presented. The antenna has a size of 23 mm × 27 mm. It provides band width ranging from 2.7 GHz to 10.6 GHz. The antenna can be easily integrated with radio frequency circuit for low cost. Details of antenna are presented with parametric study. The bandwidth is varied by varying the intrusion depth L2 and distance ‘g’ between conducting plane and ground and thus ultra wideband with is obtained. The antenna is Omni directional in operating range and it has good radiation efficiency. The fundamental parameters return loss, VSWR, radiation pattern are obtained, which meet standard specifications. Method of moments based IE3D simulator is used to analyze antenna.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":"326 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79719272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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