Pub Date : 2008-11-01DOI: 10.1109/TENCON.2008.4766428
N. Pandiarajan, R. Muthu
Energy research is basis for wealth creation that leads to successful societal transformation. PV systems play important role in sun energy extraction process. The different PV system configurations are compared on the basis of operational difficulties in the life long energy recovery processes of the module with a view of efficiency improvement and cost reduction. Significance of grid-connected PV Systems in the sun energy extraction process is presented.
{"title":"Viability analysis on photovoltaic configurations","authors":"N. Pandiarajan, R. Muthu","doi":"10.1109/TENCON.2008.4766428","DOIUrl":"https://doi.org/10.1109/TENCON.2008.4766428","url":null,"abstract":"Energy research is basis for wealth creation that leads to successful societal transformation. PV systems play important role in sun energy extraction process. The different PV system configurations are compared on the basis of operational difficulties in the life long energy recovery processes of the module with a view of efficiency improvement and cost reduction. Significance of grid-connected PV Systems in the sun energy extraction process is presented.","PeriodicalId":22230,"journal":{"name":"TENCON 2008 - 2008 IEEE Region 10 Conference","volume":"288 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76481396","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 : 2008-11-01DOI: 10.1109/TENCON.2008.4766439
F. Ning, Guosheng Jiang, Xiang Wu, Ling Zhang, B. Dou, Bing Li, Jian'an Guan
The Experimental System of Gas Hydrates Integrative Simulation (ESGHIS) was built to study the thermodynamics and kinetics of gas hydrates formation and dissociation, distribution characteristics of temperature and pressure in gas hydrate well drilled for exploration and exploitation, and gas hydrate drilling technologies. A control module was developed to lighten labor intensity and guarantee experiment safety in the ESGHIS. A multi-function card PCI-1711 was selected as the core of the control module, which has high-speed data acquisition and digital/analog output. A relay OMRON/G2R-1 was used to automatically manage the startup/stop of units. A solenoid valve VP542 and a gas-control valve NV1-20-6M-ATC were used to operate overpressure protection. PLC TEMI550 was used to control programmable high-low temperature test chamber HLT705P through connecting it to a computer using a RS232/RS485 converter I-7520. A proportional valve and a stepper motor were used to control lifting and rotary speed of the drilling pipe in mini-drilling module. The corresponding software was coded by using multithreading and Visual C++6.0 language. It had good quality on interface, maintainability and expansibility. The whole module was operated successfully in the experiments of gas hydrates formation and mini-drilling simulation. It worked steadily, executed quickly and had high sensitivity for overpressure protection, which largely lightens the experimental intensity of the labor and enhances the safety of the experiments.
建立天然气水合物综合模拟实验系统(ESGHIS)，研究天然气水合物形成与解离的热力学动力学、勘探开发天然气水合物井内温度和压力分布特征以及天然气水合物钻井技术。为了减轻工作强度，保证实验安全，开发了控制模块。控制模块选用PCI-1711多功能卡作为核心，具有高速数据采集和数模输出功能。采用欧姆龙/G2R-1继电器自动管理机组的启动/停止。使用电磁阀VP542和气体控制阀NV1-20-6M-ATC进行超压保护。采用TEMI550 PLC控制可编程高低温试验箱HLT705P，通过RS232/RS485转换器I-7520与计算机连接。在微型钻井模块中，采用比例阀和步进电机控制钻杆的升降和转速。采用多线程和Visual c++ 6.0语言编写相应的软件。该系统具有良好的接口质量、可维护性和可扩展性。整个模块在天然气水合物形成实验和小型钻井模拟中成功运行。工作稳定，执行速度快，超压保护灵敏度高，大大减轻了劳动实验强度，提高了实验的安全性。
{"title":"The Experimental System of Gas Hydrates Integrative Simulation and its control module","authors":"F. Ning, Guosheng Jiang, Xiang Wu, Ling Zhang, B. Dou, Bing Li, Jian'an Guan","doi":"10.1109/TENCON.2008.4766439","DOIUrl":"https://doi.org/10.1109/TENCON.2008.4766439","url":null,"abstract":"The Experimental System of Gas Hydrates Integrative Simulation (ESGHIS) was built to study the thermodynamics and kinetics of gas hydrates formation and dissociation, distribution characteristics of temperature and pressure in gas hydrate well drilled for exploration and exploitation, and gas hydrate drilling technologies. A control module was developed to lighten labor intensity and guarantee experiment safety in the ESGHIS. A multi-function card PCI-1711 was selected as the core of the control module, which has high-speed data acquisition and digital/analog output. A relay OMRON/G2R-1 was used to automatically manage the startup/stop of units. A solenoid valve VP542 and a gas-control valve NV1-20-6M-ATC were used to operate overpressure protection. PLC TEMI550 was used to control programmable high-low temperature test chamber HLT705P through connecting it to a computer using a RS232/RS485 converter I-7520. A proportional valve and a stepper motor were used to control lifting and rotary speed of the drilling pipe in mini-drilling module. The corresponding software was coded by using multithreading and Visual C++6.0 language. It had good quality on interface, maintainability and expansibility. The whole module was operated successfully in the experiments of gas hydrates formation and mini-drilling simulation. It worked steadily, executed quickly and had high sensitivity for overpressure protection, which largely lightens the experimental intensity of the labor and enhances the safety of the experiments.","PeriodicalId":22230,"journal":{"name":"TENCON 2008 - 2008 IEEE Region 10 Conference","volume":"39 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76403601","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 : 2008-11-01DOI: 10.1109/TENCON.2008.4766845
B. S. Raghavendra, D. Dutt
Fractal Dimensions (FD) are popular metrics for characterizing signals. They are used as complexity measures in signal analysis applications in various fields. However, proper interpretation of such analyses has not been thoroughly addressed. In this paper, we study the effect of various signal properties on FD and interpret results in terms of classical signal processing concepts such as amplitude, frequency, number of harmonics, noise power and signal bandwidth. We have used Higuchipsilas method for estimating FDs. This study helps in gaining a better understanding of the FD complexity measure for various signal parameters. Our results indicate that FD is a useful metric in estimating various signal properties. As an application of the FD measure in real world scenario, the FD is used as a feature in discriminating seizures from seizure free intervals in intracranial EEG data recordings and the FD feature has given good discrimination performance.
{"title":"Signal characterization using Fractal Dimension","authors":"B. S. Raghavendra, D. Dutt","doi":"10.1109/TENCON.2008.4766845","DOIUrl":"https://doi.org/10.1109/TENCON.2008.4766845","url":null,"abstract":"Fractal Dimensions (FD) are popular metrics for characterizing signals. They are used as complexity measures in signal analysis applications in various fields. However, proper interpretation of such analyses has not been thoroughly addressed. In this paper, we study the effect of various signal properties on FD and interpret results in terms of classical signal processing concepts such as amplitude, frequency, number of harmonics, noise power and signal bandwidth. We have used Higuchipsilas method for estimating FDs. This study helps in gaining a better understanding of the FD complexity measure for various signal parameters. Our results indicate that FD is a useful metric in estimating various signal properties. As an application of the FD measure in real world scenario, the FD is used as a feature in discriminating seizures from seizure free intervals in intracranial EEG data recordings and the FD feature has given good discrimination performance.","PeriodicalId":22230,"journal":{"name":"TENCON 2008 - 2008 IEEE Region 10 Conference","volume":"39 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76408887","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 : 2008-11-01DOI: 10.1109/TENCON.2008.4766417
V. Deepa, S. Mija
In this paper, a comparative study of design schemes of power system stabilizer (PSS) based on fast output feedback sliding mode control and relay-free sliding mode control is presented. The study is carried out on a single machine infinite bus (SMIB) system. The control objective is to enhance the stability and to improve the dynamic response of the SMIB system.
{"title":"Comparative study of fast output sampling feedback and relay free sliding mode controllers for power system stabilizer","authors":"V. Deepa, S. Mija","doi":"10.1109/TENCON.2008.4766417","DOIUrl":"https://doi.org/10.1109/TENCON.2008.4766417","url":null,"abstract":"In this paper, a comparative study of design schemes of power system stabilizer (PSS) based on fast output feedback sliding mode control and relay-free sliding mode control is presented. The study is carried out on a single machine infinite bus (SMIB) system. The control objective is to enhance the stability and to improve the dynamic response of the SMIB system.","PeriodicalId":22230,"journal":{"name":"TENCON 2008 - 2008 IEEE Region 10 Conference","volume":"68 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81229723","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 : 2008-11-01DOI: 10.1109/TENCON.2008.4766480
M. Mirza, A.F. Mohed, R. Garimella
In this paper we consider the problem of designing localization algorithm in a wireless sensor network where location information of the sensor nodes in the network is unknown. In previous localization techniques they pinpoint the co-ordinates of each and every node in network, which makes it complex and energy inefficient. But in most of the cases it is sufficient to know the area, sector in which the event has occurred. For this purpose we have proposed a new idea of the spider web based localization protocol, where we can know event up to the sector of a level. The motivation behind this algorithm is spider web, where the sensor network is divided in to the levels and then into sectors which resembles a web.
{"title":"Energy efficient sectoring based routing in Wireless Sensor Networks for delay constrained applications: A mixed approach","authors":"M. Mirza, A.F. Mohed, R. Garimella","doi":"10.1109/TENCON.2008.4766480","DOIUrl":"https://doi.org/10.1109/TENCON.2008.4766480","url":null,"abstract":"In this paper we consider the problem of designing localization algorithm in a wireless sensor network where location information of the sensor nodes in the network is unknown. In previous localization techniques they pinpoint the co-ordinates of each and every node in network, which makes it complex and energy inefficient. But in most of the cases it is sufficient to know the area, sector in which the event has occurred. For this purpose we have proposed a new idea of the spider web based localization protocol, where we can know event up to the sector of a level. The motivation behind this algorithm is spider web, where the sensor network is divided in to the levels and then into sectors which resembles a web.","PeriodicalId":22230,"journal":{"name":"TENCON 2008 - 2008 IEEE Region 10 Conference","volume":"58 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79556234","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 : 2008-11-01DOI: 10.1109/TENCON.2008.4766666
M. K. Nath, J. S. Sahambi
Functional Magnetic Resonance Imaging (fMRI) is a non-invasive technique that has been used by neuroscientists as a powerful tool to study human brain functions in response to stimuli. By generating high quality movies of the brain in action, it helps to determine which parts of human brain are activated by different task performances. The process can be modeled as a linear mixture of independent localized sources of oxygenation, where no a priori information is known about their properties. Here independent component analysis (ICA) is used to understand the brain functions and to explore spatiotemporal features in fMRI data. It has been especially successful to recover brain function related signals (task related and physiology related signals) from recorded mixtures of unrelated signals (noise). Due to the high dimensionality, high noise level and spikes (due to high sensitivity of MR scanners) analysis of fMRI data and order selection, i.e., estimation of independent component is critical. We have tried to find the independent components by a number of ICA algorithms from which Extended Efficient FastICA and Combi ICA are found to have better performance as they are robust to outliers (caused due to high sensitivity of MR scanners) and the accuracy in terms of Amari Performance Index is more as compared to others. In this paper we 1) describe fMRI data and its properties, 2) and show that the combi ICA faithfully separates the independent components from fMRI data.
{"title":"Independent component analysis of functional MRI data","authors":"M. K. Nath, J. S. Sahambi","doi":"10.1109/TENCON.2008.4766666","DOIUrl":"https://doi.org/10.1109/TENCON.2008.4766666","url":null,"abstract":"Functional Magnetic Resonance Imaging (fMRI) is a non-invasive technique that has been used by neuroscientists as a powerful tool to study human brain functions in response to stimuli. By generating high quality movies of the brain in action, it helps to determine which parts of human brain are activated by different task performances. The process can be modeled as a linear mixture of independent localized sources of oxygenation, where no a priori information is known about their properties. Here independent component analysis (ICA) is used to understand the brain functions and to explore spatiotemporal features in fMRI data. It has been especially successful to recover brain function related signals (task related and physiology related signals) from recorded mixtures of unrelated signals (noise). Due to the high dimensionality, high noise level and spikes (due to high sensitivity of MR scanners) analysis of fMRI data and order selection, i.e., estimation of independent component is critical. We have tried to find the independent components by a number of ICA algorithms from which Extended Efficient FastICA and Combi ICA are found to have better performance as they are robust to outliers (caused due to high sensitivity of MR scanners) and the accuracy in terms of Amari Performance Index is more as compared to others. In this paper we 1) describe fMRI data and its properties, 2) and show that the combi ICA faithfully separates the independent components from fMRI data.","PeriodicalId":22230,"journal":{"name":"TENCON 2008 - 2008 IEEE Region 10 Conference","volume":"169 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82668459","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 : 2008-11-01DOI: 10.1109/TENCON.2008.4766463
H. Venkataraman, Gabriel-Miro Muntean
Spatial reuse TDMA (time division multiple access) in multihop ad hoc network is a subject of intense research interest for next generation wireless systems. In this paper, the selection of concurrent communication pairs, that utilize the same resources, is formulated as a non-linear mixed integer programming problem. However, it has been found that the solution to this non-linear programming problem is NP-hard. Recently, a random data hopping (RDH) technique applied over a time slot partitioned system has been proposed by the authors as a novel heuristic algorithm. This random data hopping scheme is further studied in this paper for different values of traffic loads, and its performance is evaluated under realistic propagation conditions. It has been found that the variation of the system throughput with the traffic load follows a concave function, and it reaches its peak when the traffic load is around 30%.
{"title":"Analysis of random data hopping in distributed multihop wireless networks","authors":"H. Venkataraman, Gabriel-Miro Muntean","doi":"10.1109/TENCON.2008.4766463","DOIUrl":"https://doi.org/10.1109/TENCON.2008.4766463","url":null,"abstract":"Spatial reuse TDMA (time division multiple access) in multihop ad hoc network is a subject of intense research interest for next generation wireless systems. In this paper, the selection of concurrent communication pairs, that utilize the same resources, is formulated as a non-linear mixed integer programming problem. However, it has been found that the solution to this non-linear programming problem is NP-hard. Recently, a random data hopping (RDH) technique applied over a time slot partitioned system has been proposed by the authors as a novel heuristic algorithm. This random data hopping scheme is further studied in this paper for different values of traffic loads, and its performance is evaluated under realistic propagation conditions. It has been found that the variation of the system throughput with the traffic load follows a concave function, and it reaches its peak when the traffic load is around 30%.","PeriodicalId":22230,"journal":{"name":"TENCON 2008 - 2008 IEEE Region 10 Conference","volume":"4 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88353455","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 : 2008-11-01DOI: 10.1109/TENCON.2008.4766552
R. Sawant, M. Chandorkar
It has been established that a voltage source converter when used as a power quality compensator can be used for bidirectional active power exchange across the dc bus, simultaneously. However, it may not be possible to execute all the tasks together to their fullest requirements, if the converter operation is restricted within a specified kVA rating. To ensure the safety of the semiconductor devices and the filter components, the converter operation is always restricted within the maximum specified apparent power. While performing one type of task completely, the other tasks may have to be limited. Therefore, it is a challenging and essential task to study the limits of multifunctional converter operation in terms of the power boundaries. The paper deals with a study of power boundaries in multifunctional operation of the voltage source converter using the instantaneous p-q-r theory. The case studies for the multifunctional compensator operation with the most common linear/non-linear loads on a three-phase four-wire power system are presented. The operation boundaries are plotted with the help of power quality indices.
{"title":"Power boundaries in multifunctional converter control for three-phase four-wire systems","authors":"R. Sawant, M. Chandorkar","doi":"10.1109/TENCON.2008.4766552","DOIUrl":"https://doi.org/10.1109/TENCON.2008.4766552","url":null,"abstract":"It has been established that a voltage source converter when used as a power quality compensator can be used for bidirectional active power exchange across the dc bus, simultaneously. However, it may not be possible to execute all the tasks together to their fullest requirements, if the converter operation is restricted within a specified kVA rating. To ensure the safety of the semiconductor devices and the filter components, the converter operation is always restricted within the maximum specified apparent power. While performing one type of task completely, the other tasks may have to be limited. Therefore, it is a challenging and essential task to study the limits of multifunctional converter operation in terms of the power boundaries. The paper deals with a study of power boundaries in multifunctional operation of the voltage source converter using the instantaneous p-q-r theory. The case studies for the multifunctional compensator operation with the most common linear/non-linear loads on a three-phase four-wire power system are presented. The operation boundaries are plotted with the help of power quality indices.","PeriodicalId":22230,"journal":{"name":"TENCON 2008 - 2008 IEEE Region 10 Conference","volume":"94 6","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91424914","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 : 2008-11-01DOI: 10.1109/TENCON.2008.4766582
D. Thukaram, C. Vyjayanthi
The paper presents a method for transmission loss charge allocation in deregulated power systems based on Relative Electrical Distance (RED) concept. Based on RED between the generator and load nodes and the predefined bilateral power contracts, charge evaluation is carried out. Generally through some power exchange mechanism a set of bilateral contracts are determined that facilitate bilateral agreements between the generation and distribution entities. In this paper the possible charges incurred in meeting loads like generation charge, transmission charge and charge due to losses are evaluated. Case studies have been carried out on a few practical equivalent systems. Due to space limitation results for a sample 5 bus system are presented considering ideal load/generation power contracts and deviated load/generation power contracts. Extensive numerical testing indicates that the proposed allocation scheme produces loss allocations that are appropriate and that behave in a physically reasonable manner.
{"title":"Evaluation of charges for power transmission and losses in bilateral power contracts","authors":"D. Thukaram, C. Vyjayanthi","doi":"10.1109/TENCON.2008.4766582","DOIUrl":"https://doi.org/10.1109/TENCON.2008.4766582","url":null,"abstract":"The paper presents a method for transmission loss charge allocation in deregulated power systems based on Relative Electrical Distance (RED) concept. Based on RED between the generator and load nodes and the predefined bilateral power contracts, charge evaluation is carried out. Generally through some power exchange mechanism a set of bilateral contracts are determined that facilitate bilateral agreements between the generation and distribution entities. In this paper the possible charges incurred in meeting loads like generation charge, transmission charge and charge due to losses are evaluated. Case studies have been carried out on a few practical equivalent systems. Due to space limitation results for a sample 5 bus system are presented considering ideal load/generation power contracts and deviated load/generation power contracts. Extensive numerical testing indicates that the proposed allocation scheme produces loss allocations that are appropriate and that behave in a physically reasonable manner.","PeriodicalId":22230,"journal":{"name":"TENCON 2008 - 2008 IEEE Region 10 Conference","volume":"307 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91456289","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 : 2008-11-01DOI: 10.1109/TENCON.2008.4766445
G. K. Harng, T. S. Kiong, J. Koh, D. Yap
WiMAX (IEEE 802.16) is a broadband wireless access technology that enables convergence of mobile and fixed broadband networks through scalable OFDMA (Orthogonal Frequency Division Multiple Access) technology. This paper presents an analytical study of WiMAX propagation channel and estimates the channel capacity through simulation. WiMAX channel performance of different spectrum frequency bands applied in Asia Pacific region are investigated and evaluated in this paper.
{"title":"WiMAX channel characteristic analysis and capacity estimation","authors":"G. K. Harng, T. S. Kiong, J. Koh, D. Yap","doi":"10.1109/TENCON.2008.4766445","DOIUrl":"https://doi.org/10.1109/TENCON.2008.4766445","url":null,"abstract":"WiMAX (IEEE 802.16) is a broadband wireless access technology that enables convergence of mobile and fixed broadband networks through scalable OFDMA (Orthogonal Frequency Division Multiple Access) technology. This paper presents an analytical study of WiMAX propagation channel and estimates the channel capacity through simulation. WiMAX channel performance of different spectrum frequency bands applied in Asia Pacific region are investigated and evaluated in this paper.","PeriodicalId":22230,"journal":{"name":"TENCON 2008 - 2008 IEEE Region 10 Conference","volume":"10 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91504685","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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