Pub Date : 2014-03-27DOI: 10.1109/ICACT.2014.6778929
B. K. Baniya, D. Ghimire, Joonwhoan Lee
Music genre classification is an essential component for the music information retrieval system. There are two important components to be considered for better genre classification, which are audio feature extraction and classifier. This paper incorporates two different kinds of features for genre classification, timbrai texture and rhythmic content features. Timbrai texture contains the Mel-frequency Cepstral Coefficient (MFCC) with other several spectral features. Before choosing a timbrai feature we explore which feature plays an insignificant role on genre discrimination. This facilitates the reduction of feature dimension. For the timbrai features up to the 4-th order central moments and the covariance components of mutual features are considered to improve the overall classification result. For the rhythmic content the features extracted from beat histogram are selected. In the paper Extreme Learning Machine (ELM) with bagging is used as the classifier for classifying the genres. Based on the proposed feature sets and classifier, experiment is performed with well-known datasets: GTZAN with ten different music genres. The proposed method acquires better classification accuracy compared to the existing methodologies.
{"title":"A novel approach of automatic music genre classification based on timbrai texture and rhythmic content features","authors":"B. K. Baniya, D. Ghimire, Joonwhoan Lee","doi":"10.1109/ICACT.2014.6778929","DOIUrl":"https://doi.org/10.1109/ICACT.2014.6778929","url":null,"abstract":"Music genre classification is an essential component for the music information retrieval system. There are two important components to be considered for better genre classification, which are audio feature extraction and classifier. This paper incorporates two different kinds of features for genre classification, timbrai texture and rhythmic content features. Timbrai texture contains the Mel-frequency Cepstral Coefficient (MFCC) with other several spectral features. Before choosing a timbrai feature we explore which feature plays an insignificant role on genre discrimination. This facilitates the reduction of feature dimension. For the timbrai features up to the 4-th order central moments and the covariance components of mutual features are considered to improve the overall classification result. For the rhythmic content the features extracted from beat histogram are selected. In the paper Extreme Learning Machine (ELM) with bagging is used as the classifier for classifying the genres. Based on the proposed feature sets and classifier, experiment is performed with well-known datasets: GTZAN with ten different music genres. The proposed method acquires better classification accuracy compared to the existing methodologies.","PeriodicalId":6380,"journal":{"name":"16th International Conference on Advanced Communication Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78211211","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 : 2014-03-27DOI: 10.1109/ICACT.2014.6778965
Joonyoung Jung, Dong-oh Kang, C. Bae
The distance estimation between mobile devices is a fundamental issue for a lot of applications of indoor wireless body area network (WBAN). The RSSI have been used to estimate the distance based on the received signal strength from another mobile device. Theoretically, the signal strength is inversely proportional to squared distance, and there is a known radio propagation model that is used to convert the signal strength into distance. However, in real environments, it is hard to measure distance using RSSI because of noises, obstacles, and the type of antenna. Distance estimation using RSSI in real-world applications is still questionable because of inaccuracy. However, RSSI could become the most used technology of distance estimation from the cost/precision viewpoint because of low cost. Mobile devices need to recognize each other in office environment automatically. However, distance estimation using the RSSI of Bluetooth is difficult because of large deviation of RSSI value. This paper provides the experimental results of RSSI measurement between mobile devices in office environment. And it applies the Low Pass Filter (LPF) to reduce the deviation of RSSI value. This paper shows that the distance estimation to recognize WBAN area is possible clearly when Bluetooth RSSI LPF data are used.
{"title":"Automatic WBAN area recognition using P2P signal strength in office environment","authors":"Joonyoung Jung, Dong-oh Kang, C. Bae","doi":"10.1109/ICACT.2014.6778965","DOIUrl":"https://doi.org/10.1109/ICACT.2014.6778965","url":null,"abstract":"The distance estimation between mobile devices is a fundamental issue for a lot of applications of indoor wireless body area network (WBAN). The RSSI have been used to estimate the distance based on the received signal strength from another mobile device. Theoretically, the signal strength is inversely proportional to squared distance, and there is a known radio propagation model that is used to convert the signal strength into distance. However, in real environments, it is hard to measure distance using RSSI because of noises, obstacles, and the type of antenna. Distance estimation using RSSI in real-world applications is still questionable because of inaccuracy. However, RSSI could become the most used technology of distance estimation from the cost/precision viewpoint because of low cost. Mobile devices need to recognize each other in office environment automatically. However, distance estimation using the RSSI of Bluetooth is difficult because of large deviation of RSSI value. This paper provides the experimental results of RSSI measurement between mobile devices in office environment. And it applies the Low Pass Filter (LPF) to reduce the deviation of RSSI value. This paper shows that the distance estimation to recognize WBAN area is possible clearly when Bluetooth RSSI LPF data are used.","PeriodicalId":6380,"journal":{"name":"16th International Conference on Advanced Communication Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78376456","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 : 2014-03-27DOI: 10.1109/ICACT.2014.6778914
T. Hemmati, M. H. Y. Moghadam
Due the complexity of the wireless environments, single technology cannot be efficient to provide demands of mobile users. Hence, in cooperation with heterogeneous wireless technologies, the next generation of wireless systems makes it possible to communicate everywhere. Providing high performance and data rate is what this cooperation has promised to meet. So issues related to the heterogeneity of wireless environment like handover should be addressed. With the appearance of overlapping wireless networks, MNs have to switch their connections between different access technologies having different capabilities and characteristics. In this case, the handover process is more complex and is known as Vertical Handover. In this paper, we focus on the vertical handover management and use an extension of SIP to support vertical handover with bicasting. Delay reduction and SIP signaling messages overhead reduction are the challenges we have tried to improve with our proposed method. To evaluate our proposed method, we use the OPNET Modeler 14.5 and it's Performance for real-time service besides examining the VoIP. Simulation has been performed on UMTS/WLAN networks. The results show that our technique can improve latency and throughput.
{"title":"SIP-based vertical handover scheme with bicasting","authors":"T. Hemmati, M. H. Y. Moghadam","doi":"10.1109/ICACT.2014.6778914","DOIUrl":"https://doi.org/10.1109/ICACT.2014.6778914","url":null,"abstract":"Due the complexity of the wireless environments, single technology cannot be efficient to provide demands of mobile users. Hence, in cooperation with heterogeneous wireless technologies, the next generation of wireless systems makes it possible to communicate everywhere. Providing high performance and data rate is what this cooperation has promised to meet. So issues related to the heterogeneity of wireless environment like handover should be addressed. With the appearance of overlapping wireless networks, MNs have to switch their connections between different access technologies having different capabilities and characteristics. In this case, the handover process is more complex and is known as Vertical Handover. In this paper, we focus on the vertical handover management and use an extension of SIP to support vertical handover with bicasting. Delay reduction and SIP signaling messages overhead reduction are the challenges we have tried to improve with our proposed method. To evaluate our proposed method, we use the OPNET Modeler 14.5 and it's Performance for real-time service besides examining the VoIP. Simulation has been performed on UMTS/WLAN networks. The results show that our technique can improve latency and throughput.","PeriodicalId":6380,"journal":{"name":"16th International Conference on Advanced Communication Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79155757","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 : 2014-03-27DOI: 10.1109/ICACT.2014.6779184
J. Sangirov, I. Ukaegbu, N. Nguyen, Tae-Woo Lee, M. Cho, Hyo-Hoon Park
The development and miniaturization of electronic devices and components is pushing the system devices and their interconnecting interfaces to become even smaller. Thus, reducing the size of receiver (Rx) and transmitter (Tx) chips plays an plays an important role in designing a small-size optical modules utilized in o/e and e/o converters. Therefore, designing a small-area optical Rx may require intuitive solutions, such as building single-ended Rx and utilizing some of the advantages of differential Rx. Optical Rx should convert optical input signal to voltage output signal and provide sufficient gain and frequency operation for feeding to subsequent blocks including clock and data recovery circuit (CDR) and/or Serializer and Deserializer (SerDes). Therefore, we have designed a small-area transimpedance optical receiver (TIORx) using regulated-cascode (RGC) as an input stage which converts input photocurrent to voltage signal. The RGC block is connected to post amplifying stages to increase the overall transimpedance gain of the TIORx. The post amplifying gain stages utilizes two intersecting active feedback in order to increase the frequency operation in addition to increasing the gain of the proposed TIORx chip. The TIORx module is designed in a 0.13μm CMOS technology and works up to 10 Gbps data rate. The TIORx chip core occupies an area of 0.051mm2 with power consumption of 16.9 mW at 1.3 V. A measured 3-dB bandwidth of 6.9 GHz was obtained for the TIORx module with a transimpedance gain of 60 dBQ.
{"title":"Design of small-area transimpedance optical receiver module for optical interconnects","authors":"J. Sangirov, I. Ukaegbu, N. Nguyen, Tae-Woo Lee, M. Cho, Hyo-Hoon Park","doi":"10.1109/ICACT.2014.6779184","DOIUrl":"https://doi.org/10.1109/ICACT.2014.6779184","url":null,"abstract":"The development and miniaturization of electronic devices and components is pushing the system devices and their interconnecting interfaces to become even smaller. Thus, reducing the size of receiver (Rx) and transmitter (Tx) chips plays an plays an important role in designing a small-size optical modules utilized in o/e and e/o converters. Therefore, designing a small-area optical Rx may require intuitive solutions, such as building single-ended Rx and utilizing some of the advantages of differential Rx. Optical Rx should convert optical input signal to voltage output signal and provide sufficient gain and frequency operation for feeding to subsequent blocks including clock and data recovery circuit (CDR) and/or Serializer and Deserializer (SerDes). Therefore, we have designed a small-area transimpedance optical receiver (TIORx) using regulated-cascode (RGC) as an input stage which converts input photocurrent to voltage signal. The RGC block is connected to post amplifying stages to increase the overall transimpedance gain of the TIORx. The post amplifying gain stages utilizes two intersecting active feedback in order to increase the frequency operation in addition to increasing the gain of the proposed TIORx chip. The TIORx module is designed in a 0.13μm CMOS technology and works up to 10 Gbps data rate. The TIORx chip core occupies an area of 0.051mm2 with power consumption of 16.9 mW at 1.3 V. A measured 3-dB bandwidth of 6.9 GHz was obtained for the TIORx module with a transimpedance gain of 60 dBQ.","PeriodicalId":6380,"journal":{"name":"16th International Conference on Advanced Communication Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74724013","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 : 2014-03-27DOI: 10.1109/ICACT.2014.6779043
Jae Woo Kim, Kyung-Kyu Kang, Ji Hyung Lee
Creating 3D object models is a crucial in many areas such as computer graphics, virtual reality, animations, and computer aided design(CAD). In this paper, we discuss our ongoing research on creating traditional building component modelling using component templates. We developed a prototype system that can create building component templates by editing fundamental 3D object primitives using the open source CAD software FreeCAD. Once a building component template is created, it will be segmented and analyzed to select the unit shapes that are commonly and frequently used for a variety of component templates, and they will be registered back into the primitive database so that they can be used in creating other templates in the future. Our system provides easy-to-use editing tool that a user can create the shape of the building component and then the system automatically generate a set of parameters necessary to describe the shape. Our experience showed that users can easily create the component templates they desire to make in a few minutes.
{"title":"Template-based traditional building component modelling","authors":"Jae Woo Kim, Kyung-Kyu Kang, Ji Hyung Lee","doi":"10.1109/ICACT.2014.6779043","DOIUrl":"https://doi.org/10.1109/ICACT.2014.6779043","url":null,"abstract":"Creating 3D object models is a crucial in many areas such as computer graphics, virtual reality, animations, and computer aided design(CAD). In this paper, we discuss our ongoing research on creating traditional building component modelling using component templates. We developed a prototype system that can create building component templates by editing fundamental 3D object primitives using the open source CAD software FreeCAD. Once a building component template is created, it will be segmented and analyzed to select the unit shapes that are commonly and frequently used for a variety of component templates, and they will be registered back into the primitive database so that they can be used in creating other templates in the future. Our system provides easy-to-use editing tool that a user can create the shape of the building component and then the system automatically generate a set of parameters necessary to describe the shape. Our experience showed that users can easily create the component templates they desire to make in a few minutes.","PeriodicalId":6380,"journal":{"name":"16th International Conference on Advanced Communication Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77664023","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 : 2014-03-27DOI: 10.1109/ICACT.2014.6779162
Esraa Alomari, S. Manickam, B. Gupta, Parminder Singh, Mohammed Anbar
Botnet is one of the most widespread and serious malware which occur frequently in today's cyber attacks. A botnet is a group of Internet-connected computer programs communicating with other similar programs in order to perform various attacks. HTTP-based botnet is most dangerous botnet among all the different botnets available today. In botnets detection, in particularly, behavioural-based approaches suffer from the unavailability of the benchmark datasets and this lead to lack of precise results evaluation of botnet detection systems, comparison, and deployment which originates from the deficiency of adequate datasets. Most of the datasets in the botnet field are from local environment and cannot be used in the large scale due to privacy problems and do not reflect common trends, and also lack some statistical features. To the best of our knowledge, there is not any benchmark dataset available which is infected by HTTP-based botnet (HBB) for performing Distributed Denial of Service (DDoS) attacks against Web servers by using HTTP-GET flooding method. In addition, there is no Web access log infected by botnet is available for researchers. Therefore, in this paper, a complete test-bed will be illustrated in order to implement a real time HTTP-based botnet for performing variety of DDoS attacks against Web servers by using HTTP-GET flooding method. In addition to this, Web access log with http bot traces are also generated. These real time datasets and Web access logs can be useful to study the behaviour of HTTP-based botnet as well as to evaluate different solutions proposed to detect HTTP-based botnet by various researchers.
{"title":"Design, deployment and use of HTTP-based botnet (HBB) testbed","authors":"Esraa Alomari, S. Manickam, B. Gupta, Parminder Singh, Mohammed Anbar","doi":"10.1109/ICACT.2014.6779162","DOIUrl":"https://doi.org/10.1109/ICACT.2014.6779162","url":null,"abstract":"Botnet is one of the most widespread and serious malware which occur frequently in today's cyber attacks. A botnet is a group of Internet-connected computer programs communicating with other similar programs in order to perform various attacks. HTTP-based botnet is most dangerous botnet among all the different botnets available today. In botnets detection, in particularly, behavioural-based approaches suffer from the unavailability of the benchmark datasets and this lead to lack of precise results evaluation of botnet detection systems, comparison, and deployment which originates from the deficiency of adequate datasets. Most of the datasets in the botnet field are from local environment and cannot be used in the large scale due to privacy problems and do not reflect common trends, and also lack some statistical features. To the best of our knowledge, there is not any benchmark dataset available which is infected by HTTP-based botnet (HBB) for performing Distributed Denial of Service (DDoS) attacks against Web servers by using HTTP-GET flooding method. In addition, there is no Web access log infected by botnet is available for researchers. Therefore, in this paper, a complete test-bed will be illustrated in order to implement a real time HTTP-based botnet for performing variety of DDoS attacks against Web servers by using HTTP-GET flooding method. In addition to this, Web access log with http bot traces are also generated. These real time datasets and Web access logs can be useful to study the behaviour of HTTP-based botnet as well as to evaluate different solutions proposed to detect HTTP-based botnet by various researchers.","PeriodicalId":6380,"journal":{"name":"16th International Conference on Advanced Communication Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73460739","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 : 2014-03-27DOI: 10.1109/ICACT.2014.6779083
Tae-hwa Kim, Hyungwoo Choi, Hong-shik Park
The problem of minimizing the number of coding nodes is caused by network coding overhead and is proved to be NP-hard. To resolve this issue, this paper proposes Centrality-based Network Coding Node Selection (CNCNS) that is the heuristic and distributed mechanism to minimize the number of network coding (NC) nodes without compromising the achievable network throughput. CNCNS iteratively analyses the node centrality and selects NC node in the specific area. Since CNCNS operates with distributed manner, it can dynamically adapt the network status with approximately minimizing network coding nodes. Especially, CNCNS adjusts the network performance of network throughput and reliability using control indicator. Simulation results show that the well selected network coding nodes can improve the network throughput and almost close to throughput performance of a system where all network nodes operate network coding.
{"title":"Centrality-based network coding node selection mechanism for improving network throughput","authors":"Tae-hwa Kim, Hyungwoo Choi, Hong-shik Park","doi":"10.1109/ICACT.2014.6779083","DOIUrl":"https://doi.org/10.1109/ICACT.2014.6779083","url":null,"abstract":"The problem of minimizing the number of coding nodes is caused by network coding overhead and is proved to be NP-hard. To resolve this issue, this paper proposes Centrality-based Network Coding Node Selection (CNCNS) that is the heuristic and distributed mechanism to minimize the number of network coding (NC) nodes without compromising the achievable network throughput. CNCNS iteratively analyses the node centrality and selects NC node in the specific area. Since CNCNS operates with distributed manner, it can dynamically adapt the network status with approximately minimizing network coding nodes. Especially, CNCNS adjusts the network performance of network throughput and reliability using control indicator. Simulation results show that the well selected network coding nodes can improve the network throughput and almost close to throughput performance of a system where all network nodes operate network coding.","PeriodicalId":6380,"journal":{"name":"16th International Conference on Advanced Communication Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90400234","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 : 2014-03-27DOI: 10.1109/ICACT.2014.6779092
L. Jing, Ye Gang-qiang, Zhang Tian-jiao, Yu Pei-jun
In the paper, the constellation composed of MEO (Medium Earth Orbit) satellite is put as a researching scenario, the relative measurement and data transmission task which are finished by slow changing ISLs are put as a researching object, the integrated management of relative measurement and data transmission task inside the satellite network is put as a studying objective. Firstly, the characteristic of relative measurement and data transmission task is analyzed, and the ISLs constrained conditions are researched for both of them. Then, the topology structure of satellite network is designed according to the characteristic of slow changing ISLs and taking account into the specified requirement of measurement and data transmission task Thirdly, in order to realize integrated management of measurement and data transmission task the routing strategy is designed according to the topology structure of satellite network Finally, the researching results will be validated through the example. The technical reference will be provided by the researching results for the fields of space internet application, space based TT&C (Tracking, Telemetry and Control) and satellite communication in the future.
{"title":"The integrated management method of slow varying ISL's for MEO satellite network","authors":"L. Jing, Ye Gang-qiang, Zhang Tian-jiao, Yu Pei-jun","doi":"10.1109/ICACT.2014.6779092","DOIUrl":"https://doi.org/10.1109/ICACT.2014.6779092","url":null,"abstract":"In the paper, the constellation composed of MEO (Medium Earth Orbit) satellite is put as a researching scenario, the relative measurement and data transmission task which are finished by slow changing ISLs are put as a researching object, the integrated management of relative measurement and data transmission task inside the satellite network is put as a studying objective. Firstly, the characteristic of relative measurement and data transmission task is analyzed, and the ISLs constrained conditions are researched for both of them. Then, the topology structure of satellite network is designed according to the characteristic of slow changing ISLs and taking account into the specified requirement of measurement and data transmission task Thirdly, in order to realize integrated management of measurement and data transmission task the routing strategy is designed according to the topology structure of satellite network Finally, the researching results will be validated through the example. The technical reference will be provided by the researching results for the fields of space internet application, space based TT&C (Tracking, Telemetry and Control) and satellite communication in the future.","PeriodicalId":6380,"journal":{"name":"16th International Conference on Advanced Communication Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90441455","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 : 2014-03-27DOI: 10.1109/ICACT.2014.6778973
Seokki Kim, Sungcheol Chang
Proximity-based direct communication is the technology that devices in the near distance can use the radio resource efficiently by operating distributedly without control of BS or AP. Many technologies are proposed for proximity-based direct communication and taking the operation in unlicensed band into account. Thus, coexistence techniques are needed for coexistence with different kind of devices which operate in unlicensed band such as Wireless LAN. A blocking signal transmission scheme to avoid contention with other devices by transmitting narrow band signal is proposed as one of the coexistence schemes for coexistence with different kind of devices. In this work, we present analysis of the effect of narrow band interference such as blocking signal caused by CFO on OFDM system for proximity-based direct communication and validate the theoretical results by means of computer simulation.
{"title":"Effect of narrow band signal interference caused by CFO on OFDM system for proximity-based direct communication","authors":"Seokki Kim, Sungcheol Chang","doi":"10.1109/ICACT.2014.6778973","DOIUrl":"https://doi.org/10.1109/ICACT.2014.6778973","url":null,"abstract":"Proximity-based direct communication is the technology that devices in the near distance can use the radio resource efficiently by operating distributedly without control of BS or AP. Many technologies are proposed for proximity-based direct communication and taking the operation in unlicensed band into account. Thus, coexistence techniques are needed for coexistence with different kind of devices which operate in unlicensed band such as Wireless LAN. A blocking signal transmission scheme to avoid contention with other devices by transmitting narrow band signal is proposed as one of the coexistence schemes for coexistence with different kind of devices. In this work, we present analysis of the effect of narrow band interference such as blocking signal caused by CFO on OFDM system for proximity-based direct communication and validate the theoretical results by means of computer simulation.","PeriodicalId":6380,"journal":{"name":"16th International Conference on Advanced Communication Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78390090","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 : 2014-03-27DOI: 10.1109/ICACT.2014.6779121
Jintao Du, Jihong Zhao
Relay has been one of the most promising techniques towards LTE-A system, which improves cell coverage and throughput in cell edge. For the balance between system throughput and user fairness of LTE-A system with relay, this paper proposes user SINR dispersion degree as the main parameter for resource allocation, significantly improved the fairness of the center users and edge users. Simulation results show that the proposed Balanced Aim allocation algorithm which combined throughput, user fairness and game theory makes the system resource allocation more efficient, improving the overall performance of the system.
{"title":"RRM strategy based on throughput and fairness in LTE-A relay system","authors":"Jintao Du, Jihong Zhao","doi":"10.1109/ICACT.2014.6779121","DOIUrl":"https://doi.org/10.1109/ICACT.2014.6779121","url":null,"abstract":"Relay has been one of the most promising techniques towards LTE-A system, which improves cell coverage and throughput in cell edge. For the balance between system throughput and user fairness of LTE-A system with relay, this paper proposes user SINR dispersion degree as the main parameter for resource allocation, significantly improved the fairness of the center users and edge users. Simulation results show that the proposed Balanced Aim allocation algorithm which combined throughput, user fairness and game theory makes the system resource allocation more efficient, improving the overall performance of the system.","PeriodicalId":6380,"journal":{"name":"16th International Conference on Advanced Communication Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76726340","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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