2000 10th Mediterranean Electrotechnical Conference. Information Technology and Electrotechnology for the Mediterranean Countries. Proceedings. MeleCon 2000 (Cat. No.00CH37099)最新文献
Pub Date : 2000-05-29DOI: 10.1109/MELCON.2000.879968
B. Todorovic, M. Stankovic, S. Todorovic-Zarkula
Sequential adaptation of RBF network parameters and structure is achieved using extended Kalman filter (EKF). Criterion for network growing is obtained from Kalman filter's consistency test The optimal brain surgeon and optimal brain damage pruning methods are derived for networks which parameters are estimated by EKF. Criteria for neurons/connections pruning are based on the statistical parameter significance test.
{"title":"On-line adaptive RBF network in stationary and nonstationary environment","authors":"B. Todorovic, M. Stankovic, S. Todorovic-Zarkula","doi":"10.1109/MELCON.2000.879968","DOIUrl":"https://doi.org/10.1109/MELCON.2000.879968","url":null,"abstract":"Sequential adaptation of RBF network parameters and structure is achieved using extended Kalman filter (EKF). Criterion for network growing is obtained from Kalman filter's consistency test The optimal brain surgeon and optimal brain damage pruning methods are derived for networks which parameters are estimated by EKF. Criteria for neurons/connections pruning are based on the statistical parameter significance test.","PeriodicalId":151424,"journal":{"name":"2000 10th Mediterranean Electrotechnical Conference. Information Technology and Electrotechnology for the Mediterranean Countries. Proceedings. MeleCon 2000 (Cat. No.00CH37099)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117241585","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 : 2000-05-29DOI: 10.1109/MELCON.2000.880414
N. Males-Ilic, V. Markovic, O. Pronic
This paper presents a new procedure for noise modeling of microwave transistors based on the wave approach. The correlation matrix elements are calculated in terms of three equivalent noise temperatures. The strength of noise wave sources and correlation coefficient are shown graphically as a function of frequency and discussed. Also, the transistor noise parameters are determined from calculated noise wave sources by using microwave circuit simulator Libra.
{"title":"Noise wave modeling of microwave transistors [MESFETs]","authors":"N. Males-Ilic, V. Markovic, O. Pronic","doi":"10.1109/MELCON.2000.880414","DOIUrl":"https://doi.org/10.1109/MELCON.2000.880414","url":null,"abstract":"This paper presents a new procedure for noise modeling of microwave transistors based on the wave approach. The correlation matrix elements are calculated in terms of three equivalent noise temperatures. The strength of noise wave sources and correlation coefficient are shown graphically as a function of frequency and discussed. Also, the transistor noise parameters are determined from calculated noise wave sources by using microwave circuit simulator Libra.","PeriodicalId":151424,"journal":{"name":"2000 10th Mediterranean Electrotechnical Conference. Information Technology and Electrotechnology for the Mediterranean Countries. Proceedings. MeleCon 2000 (Cat. No.00CH37099)","volume":"191 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133276517","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 : 2000-05-29DOI: 10.1109/MELCON.2000.879750
A.N. Al-Zeftawi, K.M. Abd El-Fattah, H. Shanan, T. Kamel
In the neuromorphic arena, different engineering problems require different neural network topologies. In view of this concept, the motivation was to build a reconfigurable neural network chip. The distributed Gaussian-neuron synapse is introduced as a new type of synapses. Also a new improved resolution current-mode winner-takes-all circuit is added to realize a self-organizing topology. The chip is organized into 4 partially connected tiles with 4/spl times/3 fully connected neurons per tile. The chip was fabricated through MOSIS in 1.2 /spl mu/m AMI CMOS process occupying an area of 2 mm /spl times/2 mm.
在神经形态领域，不同的工程问题需要不同的神经网络拓扑结构。基于这个概念，我们的动机是构建一个可重构的神经网络芯片。分布式高斯神经元突触是一种新的突触类型。此外，还增加了一种新的改进分辨率的电流模式赢家通吃电路，以实现自组织拓扑结构。芯片被组织成4个部分连接的块，每个块有4/spl倍/3个完全连接的神经元。该芯片采用1.2 /spl mu/m AMI CMOS工艺，面积为2mm /spl × / 2mm，采用MOSIS工艺制备。
{"title":"CMOS mixed digital analog reconfigurable neural network with Gaussian synapses","authors":"A.N. Al-Zeftawi, K.M. Abd El-Fattah, H. Shanan, T. Kamel","doi":"10.1109/MELCON.2000.879750","DOIUrl":"https://doi.org/10.1109/MELCON.2000.879750","url":null,"abstract":"In the neuromorphic arena, different engineering problems require different neural network topologies. In view of this concept, the motivation was to build a reconfigurable neural network chip. The distributed Gaussian-neuron synapse is introduced as a new type of synapses. Also a new improved resolution current-mode winner-takes-all circuit is added to realize a self-organizing topology. The chip is organized into 4 partially connected tiles with 4/spl times/3 fully connected neurons per tile. The chip was fabricated through MOSIS in 1.2 /spl mu/m AMI CMOS process occupying an area of 2 mm /spl times/2 mm.","PeriodicalId":151424,"journal":{"name":"2000 10th Mediterranean Electrotechnical Conference. Information Technology and Electrotechnology for the Mediterranean Countries. Proceedings. MeleCon 2000 (Cat. No.00CH37099)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124341140","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 : 2000-05-29DOI: 10.1109/MELCON.2000.880384
M. Achilleos, G. Ioannou
The Cyprus Telecommunications Authority's (CYTA) modernisation programme focuses on the use of business process re-engineering tools in order to improve the organisation's customer focus and people focus orientation with parallel improvements in productivity, and the ability to develop and offer products and services with market improvements in operational flexibility. The Authority, in its search to find a modern management model able to support this modernisation programme and its path towards excellence, has opted for the European Foundation for Quality Management excellence model. In a parallel but not separated move, the Authority has decided to embark on the development and implementation of the ISO 9000 quality systems standard in its customer service operations. The first such system to be certified in June 1999, was the Authority's Limassol Customer Order Fulfillment Department and the second was the whole of the Customer Services in the area of Larnaca. The purpose of this paper is firstly to define how an ISO 9000 certified business unit can be measured against the requirements of the EFQM model and secondly outline a plan of action that could be used to guide this business unit towards the EFQM model of excellence.
{"title":"The development of an ISO 9000 quality management system to meet the requirements of the European Foundation for Quality Management (EFQM) model-the Cyprus Telecommunications Authority's case","authors":"M. Achilleos, G. Ioannou","doi":"10.1109/MELCON.2000.880384","DOIUrl":"https://doi.org/10.1109/MELCON.2000.880384","url":null,"abstract":"The Cyprus Telecommunications Authority's (CYTA) modernisation programme focuses on the use of business process re-engineering tools in order to improve the organisation's customer focus and people focus orientation with parallel improvements in productivity, and the ability to develop and offer products and services with market improvements in operational flexibility. The Authority, in its search to find a modern management model able to support this modernisation programme and its path towards excellence, has opted for the European Foundation for Quality Management excellence model. In a parallel but not separated move, the Authority has decided to embark on the development and implementation of the ISO 9000 quality systems standard in its customer service operations. The first such system to be certified in June 1999, was the Authority's Limassol Customer Order Fulfillment Department and the second was the whole of the Customer Services in the area of Larnaca. The purpose of this paper is firstly to define how an ISO 9000 certified business unit can be measured against the requirements of the EFQM model and secondly outline a plan of action that could be used to guide this business unit towards the EFQM model of excellence.","PeriodicalId":151424,"journal":{"name":"2000 10th Mediterranean Electrotechnical Conference. Information Technology and Electrotechnology for the Mediterranean Countries. Proceedings. MeleCon 2000 (Cat. No.00CH37099)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133927972","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 : 2000-05-29DOI: 10.1109/MELCON.2000.880073
D. Dres, P. Constantinou, A. Kastereli
The paper examines the conditions under which analog television and a spread spectrum system can share spectrum. After a preliminary assessment and a limited number of laboratory measurements which support the conclusions of the paper, the paper concludes that the interference caused by a constant amplitude spread spectrum system should be comparable to that caused by a conventional, narrowband FM signal of same total power, provided the spread spectrum signal has an RF bandwidth less than 2 MHz. With spectrum spreads greater than 8 MHz the spread spectrum system should have some advantage. Furthermore, in order to examine the interference caused by the TV signal in the spread spectrum system a simple mathematical equation representing the power spectrum of the TV signal is derived, and a general formulation of the bit error rate of a conventional BPSK/QPSK spread spectrum system is represented.
{"title":"Spectral overlay of spread spectrum broadcasting system for digital video delivery on analog TV band: a preliminary estimate","authors":"D. Dres, P. Constantinou, A. Kastereli","doi":"10.1109/MELCON.2000.880073","DOIUrl":"https://doi.org/10.1109/MELCON.2000.880073","url":null,"abstract":"The paper examines the conditions under which analog television and a spread spectrum system can share spectrum. After a preliminary assessment and a limited number of laboratory measurements which support the conclusions of the paper, the paper concludes that the interference caused by a constant amplitude spread spectrum system should be comparable to that caused by a conventional, narrowband FM signal of same total power, provided the spread spectrum signal has an RF bandwidth less than 2 MHz. With spectrum spreads greater than 8 MHz the spread spectrum system should have some advantage. Furthermore, in order to examine the interference caused by the TV signal in the spread spectrum system a simple mathematical equation representing the power spectrum of the TV signal is derived, and a general formulation of the bit error rate of a conventional BPSK/QPSK spread spectrum system is represented.","PeriodicalId":151424,"journal":{"name":"2000 10th Mediterranean Electrotechnical Conference. Information Technology and Electrotechnology for the Mediterranean Countries. Proceedings. MeleCon 2000 (Cat. No.00CH37099)","volume":"195 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123013138","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 : 2000-05-29DOI: 10.1109/MELCON.2000.880408
C. Pantjiaros, C. Combes, R. van Wolfswinkel, P. McDonagh, K.I. Sletta, S. Panis, N. Charalambous
The specification of a cost-effective full services access network (FSAN) has been the target and ambition of telecommunications operators. With such fully managed architecture the telecommunications operator can be sure of providing the variety of narrowband and broadband services including digital broadcast services, video on demand, IP services and traditional telecommunication services including POTs, ISDN, ATM and circuit emulation. In 1999, EURESCOM has launched the BOBAN project which considers the evaluation and testing of new broadband access technologies in a field, or lab trial environment. A primary consideration is the evaluation of FSAN-like systems and the interconnection to service platforms for the provisioning of symmetric and asymmetric broadband services, including point-to-point and point-to-multipoint broadcast services. More specifically, the scope of part of this program is to evaluate, in the field or laboratory, FTTCab/B/H solutions with connections to service platforms. The document presents a description of this on-going project.
{"title":"Broadband services delivery over an ATM PON FTTx system","authors":"C. Pantjiaros, C. Combes, R. van Wolfswinkel, P. McDonagh, K.I. Sletta, S. Panis, N. Charalambous","doi":"10.1109/MELCON.2000.880408","DOIUrl":"https://doi.org/10.1109/MELCON.2000.880408","url":null,"abstract":"The specification of a cost-effective full services access network (FSAN) has been the target and ambition of telecommunications operators. With such fully managed architecture the telecommunications operator can be sure of providing the variety of narrowband and broadband services including digital broadcast services, video on demand, IP services and traditional telecommunication services including POTs, ISDN, ATM and circuit emulation. In 1999, EURESCOM has launched the BOBAN project which considers the evaluation and testing of new broadband access technologies in a field, or lab trial environment. A primary consideration is the evaluation of FSAN-like systems and the interconnection to service platforms for the provisioning of symmetric and asymmetric broadband services, including point-to-point and point-to-multipoint broadcast services. More specifically, the scope of part of this program is to evaluate, in the field or laboratory, FTTCab/B/H solutions with connections to service platforms. The document presents a description of this on-going project.","PeriodicalId":151424,"journal":{"name":"2000 10th Mediterranean Electrotechnical Conference. Information Technology and Electrotechnology for the Mediterranean Countries. Proceedings. MeleCon 2000 (Cat. No.00CH37099)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124536656","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 : 2000-05-29DOI: 10.1109/MELCON.2000.880033
Y. Grishin, A. Zankiewicz
A new compression filter for binary coded wideband digital signals with sidelobe reduction capabilities using a feedforward time-delay neural network is considered. This filter uses powers-of-two synaptic weights and the backpropagation learning algorithm. Using digital hardware implementation of such a filter for pulse compression is easier owing to elimination of multipliers. The simulation results showed that the time sidelobes of the output signal can be reduced up to about 60 dB. The quantization of the filter weights causes additional losses of about 6-14 dB depending on the input signal to noise ratio.
{"title":"A neural network sidelobe suppression filter for a pulse-compression radar with powers-of-two weights","authors":"Y. Grishin, A. Zankiewicz","doi":"10.1109/MELCON.2000.880033","DOIUrl":"https://doi.org/10.1109/MELCON.2000.880033","url":null,"abstract":"A new compression filter for binary coded wideband digital signals with sidelobe reduction capabilities using a feedforward time-delay neural network is considered. This filter uses powers-of-two synaptic weights and the backpropagation learning algorithm. Using digital hardware implementation of such a filter for pulse compression is easier owing to elimination of multipliers. The simulation results showed that the time sidelobes of the output signal can be reduced up to about 60 dB. The quantization of the filter weights causes additional losses of about 6-14 dB depending on the input signal to noise ratio.","PeriodicalId":151424,"journal":{"name":"2000 10th Mediterranean Electrotechnical Conference. Information Technology and Electrotechnology for the Mediterranean Countries. Proceedings. MeleCon 2000 (Cat. No.00CH37099)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128676491","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 : 2000-05-29DOI: 10.1109/MELCON.2000.880055
S. Amon, D. Vrtacnik, D. Rsnik, D. Križaj, U. Aljancic, M. Mozek
A new PTAT temperature sensor is studied. Sensor structure is based on the recently introduced SJFET approach, enabling device isolation/integration on the same chip and being compatible with micromachining. The approach is based on the well-established discrete silicon device bipolar technology. Test PTAT structures were designed, fabricated and characterized. Measurements on fabricated test PTAT structures revealed good sensitivity, stability and linearity of sensor response.
{"title":"PTAT sensors based on SJFETs","authors":"S. Amon, D. Vrtacnik, D. Rsnik, D. Križaj, U. Aljancic, M. Mozek","doi":"10.1109/MELCON.2000.880055","DOIUrl":"https://doi.org/10.1109/MELCON.2000.880055","url":null,"abstract":"A new PTAT temperature sensor is studied. Sensor structure is based on the recently introduced SJFET approach, enabling device isolation/integration on the same chip and being compatible with micromachining. The approach is based on the well-established discrete silicon device bipolar technology. Test PTAT structures were designed, fabricated and characterized. Measurements on fabricated test PTAT structures revealed good sensitivity, stability and linearity of sensor response.","PeriodicalId":151424,"journal":{"name":"2000 10th Mediterranean Electrotechnical Conference. Information Technology and Electrotechnology for the Mediterranean Countries. Proceedings. MeleCon 2000 (Cat. No.00CH37099)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115840199","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 : 2000-05-29DOI: 10.1109/MELCON.2000.879677
A. Lazkano, J. Ruiz, L. Leturiondo, E. Aramendi
A new approach to a high impedance fault (HIF) detector is presented, suitable for the European scene where the power distribution systems are usually three-phase and three-wire configured. This paper aims to be a contribution to the proposals that, in the last twenty years, have been trying to solve the HIF problem with no definitive solution known yet. The purpose of the study presented is to design an electric arc detector and characterise the danger of the fault looking at fault context conditions. The detector system input signals are the three individual phase currents which comply with 3I/sub 0/=I/sub 1/+I/sub 2/+I/sub 3//spl ne/0 at the three-wire configuration. First, a continuous HIF context conditions study is proposed: overcurrent or reclosing in every phase, noticeable load variation monitoring and 3I/sub 0/ monitoring. Secondly, a short, medium and long-term statistical analysis is performed both with odd harmonics (third, fifth, seventh and ninth) and even harmonics (second and fourth) of the I/sub 0/ current. Thirdly, the estimated arc probability is calculated and combined with context conditions in order to determine a diagnosis. The proposed detector has been tested on 100 unfaulted condition event records (some have leakage current) and 32 staged fault records on different surfaces. The test results presented in the paper are satisfactory both in the sense of dependability and sensitivity.
{"title":"High impedance arcing fault detector for three-wire power distribution networks","authors":"A. Lazkano, J. Ruiz, L. Leturiondo, E. Aramendi","doi":"10.1109/MELCON.2000.879677","DOIUrl":"https://doi.org/10.1109/MELCON.2000.879677","url":null,"abstract":"A new approach to a high impedance fault (HIF) detector is presented, suitable for the European scene where the power distribution systems are usually three-phase and three-wire configured. This paper aims to be a contribution to the proposals that, in the last twenty years, have been trying to solve the HIF problem with no definitive solution known yet. The purpose of the study presented is to design an electric arc detector and characterise the danger of the fault looking at fault context conditions. The detector system input signals are the three individual phase currents which comply with 3I/sub 0/=I/sub 1/+I/sub 2/+I/sub 3//spl ne/0 at the three-wire configuration. First, a continuous HIF context conditions study is proposed: overcurrent or reclosing in every phase, noticeable load variation monitoring and 3I/sub 0/ monitoring. Secondly, a short, medium and long-term statistical analysis is performed both with odd harmonics (third, fifth, seventh and ninth) and even harmonics (second and fourth) of the I/sub 0/ current. Thirdly, the estimated arc probability is calculated and combined with context conditions in order to determine a diagnosis. The proposed detector has been tested on 100 unfaulted condition event records (some have leakage current) and 32 staged fault records on different surfaces. The test results presented in the paper are satisfactory both in the sense of dependability and sensitivity.","PeriodicalId":151424,"journal":{"name":"2000 10th Mediterranean Electrotechnical Conference. Information Technology and Electrotechnology for the Mediterranean Countries. Proceedings. MeleCon 2000 (Cat. No.00CH37099)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116767252","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 : 2000-05-29DOI: 10.1109/MELCON.2000.880404
S. Holgado, S. López-Buedo, A. Pearmain
One of the main problems in modern broadband networks is the variation of quality of service (QoS) that can occur. A very common technology used for broadband networks is ATM (asynchronous transfer mode). ATM can offer QoS guarantees for a number of different traffic classes. In an ATM switch it is possible to discard low-priority cells when the buffer is full. This can be done using logic implemented on a FPGA (field programmable gate array) chip, used because of its flexibility and easy re-configuration. This paper presents the FPGA implementation of an ATM cell priority classifier, which can be used in QoS management. The circuit directly receives a 155 Mbps ATM serial stream from a physical medium device, and performs cell delineation, serial to parallel conversion and classification according to the cell loss priority (CLP) bit. It has been implemented on a Xilinx Virtex XCV50PQ240-6 FPGA occupying 8252 equivalent gates. Simulation results show that the circuit can directly process a 155 Mbps ATM stream.
{"title":"FPGA implementation of an ATM traffic classifier for quality of service management","authors":"S. Holgado, S. López-Buedo, A. Pearmain","doi":"10.1109/MELCON.2000.880404","DOIUrl":"https://doi.org/10.1109/MELCON.2000.880404","url":null,"abstract":"One of the main problems in modern broadband networks is the variation of quality of service (QoS) that can occur. A very common technology used for broadband networks is ATM (asynchronous transfer mode). ATM can offer QoS guarantees for a number of different traffic classes. In an ATM switch it is possible to discard low-priority cells when the buffer is full. This can be done using logic implemented on a FPGA (field programmable gate array) chip, used because of its flexibility and easy re-configuration. This paper presents the FPGA implementation of an ATM cell priority classifier, which can be used in QoS management. The circuit directly receives a 155 Mbps ATM serial stream from a physical medium device, and performs cell delineation, serial to parallel conversion and classification according to the cell loss priority (CLP) bit. It has been implemented on a Xilinx Virtex XCV50PQ240-6 FPGA occupying 8252 equivalent gates. Simulation results show that the circuit can directly process a 155 Mbps ATM stream.","PeriodicalId":151424,"journal":{"name":"2000 10th Mediterranean Electrotechnical Conference. Information Technology and Electrotechnology for the Mediterranean Countries. Proceedings. MeleCon 2000 (Cat. No.00CH37099)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116719046","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}
2000 10th Mediterranean Electrotechnical Conference. Information Technology and Electrotechnology for the Mediterranean Countries. Proceedings. MeleCon 2000 (Cat. No.00CH37099)
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