Pub Date : 2014-03-27DOI: 10.1109/ICACT.2014.6779129
Jongyoon Shin, Seungjoo Hong, J. Y. Lim, Sungmin Cho, H. Rhy, G. Yi
This paper describes the SK Telecom's mobile fronthaul deployment via CWDM networks with dual subchannel interface. It also describes requirements for the next generation optical fronthaul and backhaul CWDM network evolution to support next generation fixed, mobile, and converged network services.
{"title":"CWDM networks with dual sub-channel interface for mobile fronthaul and backhaul deployment","authors":"Jongyoon Shin, Seungjoo Hong, J. Y. Lim, Sungmin Cho, H. Rhy, G. Yi","doi":"10.1109/ICACT.2014.6779129","DOIUrl":"https://doi.org/10.1109/ICACT.2014.6779129","url":null,"abstract":"This paper describes the SK Telecom's mobile fronthaul deployment via CWDM networks with dual subchannel interface. It also describes requirements for the next generation optical fronthaul and backhaul CWDM network evolution to support next generation fixed, mobile, and converged network services.","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":"84104357","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.2014.6779003
P. Abakumov, A. Koucheryavy
There are many cluster head selection algorithm for 2D space USN today. The LEACH algorithm is analyzed in the paper. It could be used for 3D space USN too. The new cluster head selection Maximum Coverage Algorithm (MCA) for homogeneous 3D USN is proposed in the paper. The LEACH and MCA full 3D coverage is compared by simulation on C++. The proposed algorithm supports the full 3D space of sensor field coverage for the longer time than LEACH.
{"title":"The cluster head selection algorithm in the 3D USN","authors":"P. Abakumov, A. Koucheryavy","doi":"10.1109/ICACT.2014.6779003","DOIUrl":"https://doi.org/10.1109/ICACT.2014.6779003","url":null,"abstract":"There are many cluster head selection algorithm for 2D space USN today. The LEACH algorithm is analyzed in the paper. It could be used for 3D space USN too. The new cluster head selection Maximum Coverage Algorithm (MCA) for homogeneous 3D USN is proposed in the paper. The LEACH and MCA full 3D coverage is compared by simulation on C++. The proposed algorithm supports the full 3D space of sensor field coverage for the longer time than LEACH.","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":"78552689","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.2014.6779019
N. Selviandro, M. Suryani, Z. Hasibuan
Indonesia is a developing country that began to utilize information technology in education. A form of its implementation is the use of e-learning. However, in practice there are still some obstacles, such as learning resources are not evenly distributed, limited access to services provided, qualified educators resources are concentrated in specific areas. This led to the emergence of disparities educational process, and technology gap due to differences in ICT infrastructure owned by any educational institution. Therefore this study propose an architecture of cloud-based open learning to solve these problems. The term open learning is used in order to encouraging the development of the concept of Indonesia Open Educational Resources (IOER) and as well as the adoption of concept of cloud computing. This research through several phases of research including analysis, design, implementation, testing and evaluation. The design of the proposed architecture consists of six layers: (1) Infrastructure, (2) Platform, (3) Application, (4) Service, (5) Access, (6) User. As a results of the implementation from this architecture is a prototype of Indonesia - Virtual Open Learning System (iVOLS). In experiment, personalization e-learning runs as a service that need large storage and other shared facilities to conduct the program so the system can delivered different learning materials to different learners. The personalization e-learning in cloud environment successed when the learners got the best performance on learning and it shown by their evaluation score. Based on the test results and evaluation showed that the availability on Cloud-Based Open Learning further meet user needs. This is indicated by the presence of a simple infrastructure services, application services with just one stage and the availability of a wider range of data and the resource sharing. In accessibility, Cloud-Based Open Learning provides easy access to the user. By economically, the result of evaluation showed that Cloud-Based Open Learning has an investment of 35.61% efficiency, increase return on investment (ROI) of 60.95% and an increase in benefits (NPV) of 81.97% from the user's perspective. While from the provider's perspective, Cloud-Based Open Learning has an investment of 200% efficiency, increase return on investment (Rol) of 220.4% and an increase in benefits (NPV) of 109.55%.
{"title":"Open learning optimization based on cloud technology: Case study implementation in personalization e-learning","authors":"N. Selviandro, M. Suryani, Z. Hasibuan","doi":"10.1109/ICACT.2014.6779019","DOIUrl":"https://doi.org/10.1109/ICACT.2014.6779019","url":null,"abstract":"Indonesia is a developing country that began to utilize information technology in education. A form of its implementation is the use of e-learning. However, in practice there are still some obstacles, such as learning resources are not evenly distributed, limited access to services provided, qualified educators resources are concentrated in specific areas. This led to the emergence of disparities educational process, and technology gap due to differences in ICT infrastructure owned by any educational institution. Therefore this study propose an architecture of cloud-based open learning to solve these problems. The term open learning is used in order to encouraging the development of the concept of Indonesia Open Educational Resources (IOER) and as well as the adoption of concept of cloud computing. This research through several phases of research including analysis, design, implementation, testing and evaluation. The design of the proposed architecture consists of six layers: (1) Infrastructure, (2) Platform, (3) Application, (4) Service, (5) Access, (6) User. As a results of the implementation from this architecture is a prototype of Indonesia - Virtual Open Learning System (iVOLS). In experiment, personalization e-learning runs as a service that need large storage and other shared facilities to conduct the program so the system can delivered different learning materials to different learners. The personalization e-learning in cloud environment successed when the learners got the best performance on learning and it shown by their evaluation score. Based on the test results and evaluation showed that the availability on Cloud-Based Open Learning further meet user needs. This is indicated by the presence of a simple infrastructure services, application services with just one stage and the availability of a wider range of data and the resource sharing. In accessibility, Cloud-Based Open Learning provides easy access to the user. By economically, the result of evaluation showed that Cloud-Based Open Learning has an investment of 35.61% efficiency, increase return on investment (ROI) of 60.95% and an increase in benefits (NPV) of 81.97% from the user's perspective. While from the provider's perspective, Cloud-Based Open Learning has an investment of 200% efficiency, increase return on investment (Rol) of 220.4% and an increase in benefits (NPV) of 109.55%.","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":"78062574","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.2014.6779079
Yuan An, Jian-cheng Li, Weiwei Fang, Baohua Wang, Qiwang Guo, Jing Li, Xiao-le Li, Xing Du
The promising projects of satellite swarm have been studied by scientists from NASA, ESA and other institutes around the world. With a massive number of pico-class, low-power and low-weight space-crafts like pico-satellites, nano-satellites, Swarm can exploring outer space environment or taking other tasks that are hard to be fulfilled by common satellites. The other merit of using swarm than common satellite is cost reduction. Besides all the advantages of satellite swarm, developing swarm-based satellite systems from conceptualization to validation is a complex multi-disciplinary activity. Swarm is commonly energy-constrained, so one of the key challenges is how to achieve energy-efficient data transmission between the satellite swarm and terrestrial terminal stations. By employing Lyapunov optimization, we present an online control algorithm called EESE for optimally dispatching traffic load among different satellite-ground links to minimize overall energy consumption over time. Our algorithm is able to independently and simultaneously make control decisions about traffic dispatching on ISLs and UDLs to offer provable energy and delay guarantees, without requiring any statistical information of traffic arrivals and link conditions. Rigorous analysis has demonstrated the performance and robustness of our algorithm.
{"title":"EESE: Energy-efficient communication between satellite swarms and earth stations","authors":"Yuan An, Jian-cheng Li, Weiwei Fang, Baohua Wang, Qiwang Guo, Jing Li, Xiao-le Li, Xing Du","doi":"10.1109/ICACT.2014.6779079","DOIUrl":"https://doi.org/10.1109/ICACT.2014.6779079","url":null,"abstract":"The promising projects of satellite swarm have been studied by scientists from NASA, ESA and other institutes around the world. With a massive number of pico-class, low-power and low-weight space-crafts like pico-satellites, nano-satellites, Swarm can exploring outer space environment or taking other tasks that are hard to be fulfilled by common satellites. The other merit of using swarm than common satellite is cost reduction. Besides all the advantages of satellite swarm, developing swarm-based satellite systems from conceptualization to validation is a complex multi-disciplinary activity. Swarm is commonly energy-constrained, so one of the key challenges is how to achieve energy-efficient data transmission between the satellite swarm and terrestrial terminal stations. By employing Lyapunov optimization, we present an online control algorithm called EESE for optimally dispatching traffic load among different satellite-ground links to minimize overall energy consumption over time. Our algorithm is able to independently and simultaneously make control decisions about traffic dispatching on ISLs and UDLs to offer provable energy and delay guarantees, without requiring any statistical information of traffic arrivals and link conditions. Rigorous analysis has demonstrated the performance and robustness of our algorithm.","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":"72864556","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}
Recommender systems are becoming an essential part of smart services. When building a news recommender system, we should consider special features different from other recommender systems. Hot news topics are changing every moment, thus it is important to recommend right news at the right time. This paper aims to propose a new model, based on deep neural network, to analyse user preference for news recommender system. The model extracts interest keywords to characterize the user preference from the set of news articles read by that particular user in the past. The model utilizes characterizing features for news recommendation, and applies those to the keyword classification for user preference. For the keyword classification, we use deep neural network for online preference analysis, because adaptive learning is necessary to track changes of hot topics sensitively. The usefulness of our model is validated through experiments. In addition, the accuracy and diversity of the recommendation results is also analysed.
{"title":"Personalized news recommendation using classified keywords to capture user preference","authors":"Kyojoong Oh, Won-Jo Lee, Chae-Gyun Lim, Ho‐Jin Choi","doi":"10.1109/ICACT.2014.6779166","DOIUrl":"https://doi.org/10.1109/ICACT.2014.6779166","url":null,"abstract":"Recommender systems are becoming an essential part of smart services. When building a news recommender system, we should consider special features different from other recommender systems. Hot news topics are changing every moment, thus it is important to recommend right news at the right time. This paper aims to propose a new model, based on deep neural network, to analyse user preference for news recommender system. The model extracts interest keywords to characterize the user preference from the set of news articles read by that particular user in the past. The model utilizes characterizing features for news recommendation, and applies those to the keyword classification for user preference. For the keyword classification, we use deep neural network for online preference analysis, because adaptive learning is necessary to track changes of hot topics sensitively. The usefulness of our model is validated through experiments. In addition, the accuracy and diversity of the recommendation results is also analysed.","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":"76412129","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.2014.6779175
Julian Webber, T. Nishimura, T. Ohgane, Y. Ogawa
The near Shannon capacity approaching low-density parity-check (LDPC) linear block codes are now in widespread use in modern systems including the long term evolution advanced (LTE-A) cellular, 802.11η Wi-Fi and DVB-S2 satellite communications standards. The decoders based on the iterative belief propagation algorithm provide near optimum performance but also have very high computational complexity. Therefore significant research has recently focused on reduced complexity architectures based on the group of so-called bit-flipping algorithms. In the basic bit-flipping algorithm the number of failed parity checks for each bit is computed and the bit with the maximum failed parity checks is inverted. Inverting bits above a certain threshold removes the complexity involved with a maximum-search and, adaptive thresholds on each bit can further reduce the computation overhead. The criterion for the threshold update affects the error and convergence performances. Here, we describe a low-complexity architecture that has two (or more) decoder branches each with a different threshold scaling factor and select the threshold and bits at each iteration from the branch with the lowest syndrome sum. We then investigate the effect of adding a random Uniform or Gaussian noise perturbation to the threshold in order to reduce the average iteration count further in order to provide the opportunity to escape from stuck decoding states.
{"title":"Performance investigation of reduced complexity bit-flipping using variable thresholds and noise perturbation","authors":"Julian Webber, T. Nishimura, T. Ohgane, Y. Ogawa","doi":"10.1109/ICACT.2014.6779175","DOIUrl":"https://doi.org/10.1109/ICACT.2014.6779175","url":null,"abstract":"The near Shannon capacity approaching low-density parity-check (LDPC) linear block codes are now in widespread use in modern systems including the long term evolution advanced (LTE-A) cellular, 802.11η Wi-Fi and DVB-S2 satellite communications standards. The decoders based on the iterative belief propagation algorithm provide near optimum performance but also have very high computational complexity. Therefore significant research has recently focused on reduced complexity architectures based on the group of so-called bit-flipping algorithms. In the basic bit-flipping algorithm the number of failed parity checks for each bit is computed and the bit with the maximum failed parity checks is inverted. Inverting bits above a certain threshold removes the complexity involved with a maximum-search and, adaptive thresholds on each bit can further reduce the computation overhead. The criterion for the threshold update affects the error and convergence performances. Here, we describe a low-complexity architecture that has two (or more) decoder branches each with a different threshold scaling factor and select the threshold and bits at each iteration from the branch with the lowest syndrome sum. We then investigate the effect of adding a random Uniform or Gaussian noise perturbation to the threshold in order to reduce the average iteration count further in order to provide the opportunity to escape from stuck decoding states.","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":"76093927","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.2014.6779139
Chuen Tse Kuah, K. Wong
The main objective of this paper is to devise a Data Envelopment Analysis (DEA) model to assess team performance. The DEA model in this study uses slack based measure (SBM), a method which deals directly with the input excesses and output shortfall. An explanatory example has been given to demonstrate the applicability of the model to evaluate team performance. From this study, it is found that DEA is suitable to measure team performance. The model is able to provide improvement targets to the inefficient teams. Lastly, a few directions for future research have been identified.
本文的主要目的是设计一个数据包络分析(DEA)模型来评估团队绩效。本研究的DEA模型采用基于松弛测度(slack based measure, SBM)的方法，直接处理投入过剩和产出不足。通过实例说明了该模型在团队绩效评价中的适用性。通过本研究发现，DEA适用于衡量团队绩效。该模型能够为效率低下的团队提供改进目标。最后，提出了今后的研究方向。
{"title":"Evaluating team performance using slack based data envelopment analysis","authors":"Chuen Tse Kuah, K. Wong","doi":"10.1109/ICACT.2014.6779139","DOIUrl":"https://doi.org/10.1109/ICACT.2014.6779139","url":null,"abstract":"The main objective of this paper is to devise a Data Envelopment Analysis (DEA) model to assess team performance. The DEA model in this study uses slack based measure (SBM), a method which deals directly with the input excesses and output shortfall. An explanatory example has been given to demonstrate the applicability of the model to evaluate team performance. From this study, it is found that DEA is suitable to measure team performance. The model is able to provide improvement targets to the inefficient teams. Lastly, a few directions for future research have been identified.","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":"87636497","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.2014.6778984
Ryoji Aoki, Hiroshi Yamamoto, K. Yamazaki
With the increase in the number of elderly people, a guidance system that can be used for medical examination in hospitals becomes to attract attention. As a position estimation technology for indoor guidance, a Wi-Fi positioning system has been studied. However, Wi-Fi radio waves are not available in the hospitals because that affect operations of medical equipment. In this paper, we propose a new realtime indoor guidance system using Personal Handy-phone System (PHS) and Android device for visitors in hospitals. Our proposed system utilizes a combination of Received Signal Strength Indication (RSSI) of PHS and Dead Reckoning based on sensors of an Android device in order to estimate a user's indoor position without affecting operation of medical equipment. Through the experimental evaluation, we have clarified that the proposed system has successfully guided subjects to the destinations with accuracy of 93.3[%].
{"title":"Android-based navigation system for elderly people in hospital","authors":"Ryoji Aoki, Hiroshi Yamamoto, K. Yamazaki","doi":"10.1109/ICACT.2014.6778984","DOIUrl":"https://doi.org/10.1109/ICACT.2014.6778984","url":null,"abstract":"With the increase in the number of elderly people, a guidance system that can be used for medical examination in hospitals becomes to attract attention. As a position estimation technology for indoor guidance, a Wi-Fi positioning system has been studied. However, Wi-Fi radio waves are not available in the hospitals because that affect operations of medical equipment. In this paper, we propose a new realtime indoor guidance system using Personal Handy-phone System (PHS) and Android device for visitors in hospitals. Our proposed system utilizes a combination of Received Signal Strength Indication (RSSI) of PHS and Dead Reckoning based on sensors of an Android device in order to estimate a user's indoor position without affecting operation of medical equipment. Through the experimental evaluation, we have clarified that the proposed system has successfully guided subjects to the destinations with accuracy of 93.3[%].","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":"86903533","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.2014.6778971
Jae Yong Lee, S. Choi
We propose a method about power consumption scheduling for shaving peak load at home area using linear programming technique. Problems caused by peak load such as blackout and rolling blackout has occurred recently in the world because hourly peak load consumption is increased rapidly in the same time. So to solve these problems is using ESS. Especially, the most effective method is to utilize ESS and V2G. Electricity of the battery of parked PHEV at home area transmits through V2G to the ESS. The stored electricity in the ESS is optimized by using linear programming. This optimization reduces the hourly peak load consumption.
{"title":"Linear programming based hourly peak load shaving method at home area","authors":"Jae Yong Lee, S. Choi","doi":"10.1109/ICACT.2014.6778971","DOIUrl":"https://doi.org/10.1109/ICACT.2014.6778971","url":null,"abstract":"We propose a method about power consumption scheduling for shaving peak load at home area using linear programming technique. Problems caused by peak load such as blackout and rolling blackout has occurred recently in the world because hourly peak load consumption is increased rapidly in the same time. So to solve these problems is using ESS. Especially, the most effective method is to utilize ESS and V2G. Electricity of the battery of parked PHEV at home area transmits through V2G to the ESS. The stored electricity in the ESS is optimized by using linear programming. This optimization reduces the hourly peak load consumption.","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":"82849842","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.2014.6778938
Myung-Don Kim, Juyul Lee, Jinyi Liang, Jinup Kim
In this paper, we focus on multipath channel characteristics of low-height antenna links for mobile to mobile communications in urban street grid environments. We present a wideband MIMO channel sounder and antennas used to measure multipath channel characteristics at 3.7GHz frequency band and the result of calibration test to evaluate a system performance before field measurement. We carried out a channel measurement campaign in urban street grid environments in Seoul, Korea. The results of multipath characteristics from collected data in field measurement are compared with the conventional ITU-R channel model parameters in terms of r.m.s delay spread, and angular spread of arrival and departure.
{"title":"Multipath characteristics for mobile to mobile direct communications based on channel measurement in urban street grid environments","authors":"Myung-Don Kim, Juyul Lee, Jinyi Liang, Jinup Kim","doi":"10.1109/ICACT.2014.6778938","DOIUrl":"https://doi.org/10.1109/ICACT.2014.6778938","url":null,"abstract":"In this paper, we focus on multipath channel characteristics of low-height antenna links for mobile to mobile communications in urban street grid environments. We present a wideband MIMO channel sounder and antennas used to measure multipath channel characteristics at 3.7GHz frequency band and the result of calibration test to evaluate a system performance before field measurement. We carried out a channel measurement campaign in urban street grid environments in Seoul, Korea. The results of multipath characteristics from collected data in field measurement are compared with the conventional ITU-R channel model parameters in terms of r.m.s delay spread, and angular spread of arrival and departure.","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":"82759345","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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