Pub Date : 2008-12-01DOI: 10.1109/ICIINFS.2008.4798481
S. R. K. Vadali, S. Chakrabarti, R. V. Rajakumar
Selected Mapping (SLM) is a well known distortionless phase control Peak-to-Average-Power-Ratio (PAPR) reduction technique for Orthogonal Frequency Division Multiplexing (OFDM) systems. A major limitation of SLM-OFDM systems is that the receiver requires exact information of the phase set used at the transmitter. Usually side information (SI) is either transmitted explicitly at the loss of data rate or avoided using Blind SLM (BSLM) techniques at the expense of computational complexity. In the present work we investigate four SLM based PAPR reduction techniques and propose a new technique for pilot based SLM-OFDM systems which avoids the requirement of SI with low complexity. The proposed scheme involves cyclic shifting of pilots for each of the independent mapping in SLM systems. We compute a minimum distance vector at the receiver to detect the exact phase set used in the transmitter and avoid explicit transmission of SI. Bit Error Rate (BER) performance of the proposed scheme is evaluated in AWGN channels.
{"title":"A Low Complexity PAPR Reduction Scheme without Side Information for Pilot Assisted OFDM Systems","authors":"S. R. K. Vadali, S. Chakrabarti, R. V. Rajakumar","doi":"10.1109/ICIINFS.2008.4798481","DOIUrl":"https://doi.org/10.1109/ICIINFS.2008.4798481","url":null,"abstract":"Selected Mapping (SLM) is a well known distortionless phase control Peak-to-Average-Power-Ratio (PAPR) reduction technique for Orthogonal Frequency Division Multiplexing (OFDM) systems. A major limitation of SLM-OFDM systems is that the receiver requires exact information of the phase set used at the transmitter. Usually side information (SI) is either transmitted explicitly at the loss of data rate or avoided using Blind SLM (BSLM) techniques at the expense of computational complexity. In the present work we investigate four SLM based PAPR reduction techniques and propose a new technique for pilot based SLM-OFDM systems which avoids the requirement of SI with low complexity. The proposed scheme involves cyclic shifting of pilots for each of the independent mapping in SLM systems. We compute a minimum distance vector at the receiver to detect the exact phase set used in the transmitter and avoid explicit transmission of SI. Bit Error Rate (BER) performance of the proposed scheme is evaluated in AWGN channels.","PeriodicalId":429889,"journal":{"name":"2008 IEEE Region 10 and the Third international Conference on Industrial and Information Systems","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133690650","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 : 2008-12-01DOI: 10.1109/ICIINFS.2008.4798366
K. Garje, Anil Kumar, S. Biswas, Amitava Banerjee, Pam Srikanth, S. Mukhopadhyay
Fault simulation is one of the elemental steps in test pattern generation and is widely used for digital circuits. In case of analog circuits, fault simulation is not generally adopted because of the lack of suitable fault models and the time required for the transistor level simulation of the entire circuit. In this paper, a macromodel level fault model, which is able to represent the faulty behavior of the linear circuits with opamp, is presented. Macromodel based platform is chosen for fault simulation because, as shown in this paper, they are much faster in simulation than transistor level models but fault behavior is captured within an adequate range of accuracy. The faults considered are mostly parametric and few are catastrophic in nature. For ease of the test engineers, the macromodel parameters of the faulty opamp used for linear circuits are obtained automatically by a parameter estimation tool, given the macromodel of the normal circuit and the fault.
{"title":"Macromodel Based Fault Simulation of Linear Circuits using Parameter Estimation","authors":"K. Garje, Anil Kumar, S. Biswas, Amitava Banerjee, Pam Srikanth, S. Mukhopadhyay","doi":"10.1109/ICIINFS.2008.4798366","DOIUrl":"https://doi.org/10.1109/ICIINFS.2008.4798366","url":null,"abstract":"Fault simulation is one of the elemental steps in test pattern generation and is widely used for digital circuits. In case of analog circuits, fault simulation is not generally adopted because of the lack of suitable fault models and the time required for the transistor level simulation of the entire circuit. In this paper, a macromodel level fault model, which is able to represent the faulty behavior of the linear circuits with opamp, is presented. Macromodel based platform is chosen for fault simulation because, as shown in this paper, they are much faster in simulation than transistor level models but fault behavior is captured within an adequate range of accuracy. The faults considered are mostly parametric and few are catastrophic in nature. For ease of the test engineers, the macromodel parameters of the faulty opamp used for linear circuits are obtained automatically by a parameter estimation tool, given the macromodel of the normal circuit and the fault.","PeriodicalId":429889,"journal":{"name":"2008 IEEE Region 10 and the Third international Conference on Industrial and Information Systems","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115964028","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 : 2008-12-01DOI: 10.1109/ICIINFS.2008.4798328
Anirudha N. Joshi
Anirudha conducts workshops on HCI for IT professionals where he helps thnem to institutionalize HCI in their organizations. Anirudha undertakles consulting assignments in user studies, interaction design and usabili evaluation. He has authored papers related to HCI in Indian and international conferences and journals. He was the co-chair of the programme committee of the first India HCI conference held in December, 2004 in Bangalore.
{"title":"Human-Computer Interaction","authors":"Anirudha N. Joshi","doi":"10.1109/ICIINFS.2008.4798328","DOIUrl":"https://doi.org/10.1109/ICIINFS.2008.4798328","url":null,"abstract":"Anirudha conducts workshops on HCI for IT professionals where he helps thnem to institutionalize HCI in their organizations. Anirudha undertakles consulting assignments in user studies, interaction design and usabili evaluation. He has authored papers related to HCI in Indian and international conferences and journals. He was the co-chair of the programme committee of the first India HCI conference held in December, 2004 in Bangalore.","PeriodicalId":429889,"journal":{"name":"2008 IEEE Region 10 and the Third international Conference on Industrial and Information Systems","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116076219","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 : 2008-12-01DOI: 10.1109/ICIINFS.2008.4798470
Jayanta K. Chandra, Pradipta K. Banerjee, A. K. Datta
Basic morphological processing i.e. erosion and dilation, often fails to detect various types of defects that may be present in woven fabric, mainly because of the presence of interlaced grating structure of the weft and warp of the fabric. In this paper basic grating structure is optically filtered and then gray scale morphological reconstruction operations are applied for the detection of defects. The results have shown the usefulness of the proposed method during detections of various types of defects in woven fabric, as illustrated by the portions given in this document.
{"title":"Morphological Reconstruction Operation for the Detection of Defects in Woven Fabric","authors":"Jayanta K. Chandra, Pradipta K. Banerjee, A. K. Datta","doi":"10.1109/ICIINFS.2008.4798470","DOIUrl":"https://doi.org/10.1109/ICIINFS.2008.4798470","url":null,"abstract":"Basic morphological processing i.e. erosion and dilation, often fails to detect various types of defects that may be present in woven fabric, mainly because of the presence of interlaced grating structure of the weft and warp of the fabric. In this paper basic grating structure is optically filtered and then gray scale morphological reconstruction operations are applied for the detection of defects. The results have shown the usefulness of the proposed method during detections of various types of defects in woven fabric, as illustrated by the portions given in this document.","PeriodicalId":429889,"journal":{"name":"2008 IEEE Region 10 and the Third international Conference on Industrial and Information Systems","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116223502","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 : 2008-12-01DOI: 10.1109/ICIINFS.2008.4798416
Anirban Krishna Bhattacharya, S. Bhattacharya, Tanushree Garai, S. Mukhopadhyay
RF seekers provide the relative kinematics between the target and the pursuer in terms of LOS rates which are used for homing guidance computation. The measurement noise of the seeker is non-stationary and correlated due to eclipsing, Glint, RCS fluctuation, Radome distortion, angular noise, Gyro drift, etc. Further, the track loop dynamics originated from the receiver, signal processing and the stabilization loop result in certain delay between the kinematic LOS rate and the measurements. These necessitate appropriate modeling of the LOS rate measurement dynamics and the noise characteristics to incorporate in the seeker estimator, rather than considering the measurements as kinematics with additive white and stationary noise. The modeling of measurement dynamics and non-stationary and correlated noise of the RF seeker noise are discussed in this paper. The results of simulation in a realistic engagement scenario show that implementation of suitable measurement dynamics and noise model improves estimation of LOS rates as compared to absence of such models.
{"title":"Modeling of RF Seeker Dynamics and Noise Characteristics for Estimator Design in Homing Guidance Applications","authors":"Anirban Krishna Bhattacharya, S. Bhattacharya, Tanushree Garai, S. Mukhopadhyay","doi":"10.1109/ICIINFS.2008.4798416","DOIUrl":"https://doi.org/10.1109/ICIINFS.2008.4798416","url":null,"abstract":"RF seekers provide the relative kinematics between the target and the pursuer in terms of LOS rates which are used for homing guidance computation. The measurement noise of the seeker is non-stationary and correlated due to eclipsing, Glint, RCS fluctuation, Radome distortion, angular noise, Gyro drift, etc. Further, the track loop dynamics originated from the receiver, signal processing and the stabilization loop result in certain delay between the kinematic LOS rate and the measurements. These necessitate appropriate modeling of the LOS rate measurement dynamics and the noise characteristics to incorporate in the seeker estimator, rather than considering the measurements as kinematics with additive white and stationary noise. The modeling of measurement dynamics and non-stationary and correlated noise of the RF seeker noise are discussed in this paper. The results of simulation in a realistic engagement scenario show that implementation of suitable measurement dynamics and noise model improves estimation of LOS rates as compared to absence of such models.","PeriodicalId":429889,"journal":{"name":"2008 IEEE Region 10 and the Third international Conference on Industrial and Information Systems","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114957788","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 : 2008-12-01DOI: 10.1109/ICIINFS.2008.4798319
A. Gumaste
The growth of broad and traffic and applications using the Internet has been exponential in the past few years. Internet working applications have significantly impacted human lives. The Internet and in particular the lower 2 layers have changed significantly in the past decade or so. To meet the emerging demands of end-users, networks have evolved from a bandwidth intensive and quality sensitive perspective. We discuss new technology choices that have emerged in the past few years and how these would impact network design in the near future. In particular, the colloquium discusses optical metro, access and long haul technologies including WDM and Carrier Ethernet. The technology choices in the optical and data layer have a strong impact on Future Internet design. Based on these technology choices we develop a road-map for Future Internet design and how it would impact services, applications, technologies and communities. We also discuss briefly the Indian broadband scenario from an access and metro perspective.
{"title":"Future Internet Design - Restructuring the Internet Economy","authors":"A. Gumaste","doi":"10.1109/ICIINFS.2008.4798319","DOIUrl":"https://doi.org/10.1109/ICIINFS.2008.4798319","url":null,"abstract":"The growth of broad and traffic and applications using the Internet has been exponential in the past few years. Internet working applications have significantly impacted human lives. The Internet and in particular the lower 2 layers have changed significantly in the past decade or so. To meet the emerging demands of end-users, networks have evolved from a bandwidth intensive and quality sensitive perspective. We discuss new technology choices that have emerged in the past few years and how these would impact network design in the near future. In particular, the colloquium discusses optical metro, access and long haul technologies including WDM and Carrier Ethernet. The technology choices in the optical and data layer have a strong impact on Future Internet design. Based on these technology choices we develop a road-map for Future Internet design and how it would impact services, applications, technologies and communities. We also discuss briefly the Indian broadband scenario from an access and metro perspective.","PeriodicalId":429889,"journal":{"name":"2008 IEEE Region 10 and the Third international Conference on Industrial and Information Systems","volume":"300 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115558430","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 : 2008-12-01DOI: 10.1109/ICIINFS.2008.4798383
A. Ganguly, A. Ganguly, Manik Bhoumic, A. Ganguly
High speed resonant cavity metal-semiconductor-metal (MSM) Schottky barrier photo detector is reported. Nickel is used as metal and quasi mono-crystalline silicon (QMS) with nanovoids is used as semiconductor material. QMS is sandwiched between thin nickel plates to obtain heterodyne characterization of MSM photo detector. QMS of suitable dimension shows significant enhancement of optical absorptance which in turn provides higher efficiency of the photo detector. A theoretical model of the photo diode is designed with a resonant cavity. The resonant cavity is chosen for obtaining higher quantum efficiency and the Schottky effect provides high speed to this photo detector. The micro cavity also causes wavelength selectivity accompanied by a drastic increase of the electric field at the resonant wavelength. The enhanced optical field provides high efficiency for faster transit time limited photodiodes with thinner absorption region. Appreciable improvement in results on speed, efficiency and responsivity is observed.
{"title":"High-Speed Metal-Semiconductor-Metal Photo diode","authors":"A. Ganguly, A. Ganguly, Manik Bhoumic, A. Ganguly","doi":"10.1109/ICIINFS.2008.4798383","DOIUrl":"https://doi.org/10.1109/ICIINFS.2008.4798383","url":null,"abstract":"High speed resonant cavity metal-semiconductor-metal (MSM) Schottky barrier photo detector is reported. Nickel is used as metal and quasi mono-crystalline silicon (QMS) with nanovoids is used as semiconductor material. QMS is sandwiched between thin nickel plates to obtain heterodyne characterization of MSM photo detector. QMS of suitable dimension shows significant enhancement of optical absorptance which in turn provides higher efficiency of the photo detector. A theoretical model of the photo diode is designed with a resonant cavity. The resonant cavity is chosen for obtaining higher quantum efficiency and the Schottky effect provides high speed to this photo detector. The micro cavity also causes wavelength selectivity accompanied by a drastic increase of the electric field at the resonant wavelength. The enhanced optical field provides high efficiency for faster transit time limited photodiodes with thinner absorption region. Appreciable improvement in results on speed, efficiency and responsivity is observed.","PeriodicalId":429889,"journal":{"name":"2008 IEEE Region 10 and the Third international Conference on Industrial and Information Systems","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121377806","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 : 2008-12-01DOI: 10.1109/ICIINFS.2008.4798465
Ratnakar Dash, Rutuparna Panda, B. Acharya, B. Majhi
In this paper direct design of generalized B-spline filters has been presented. It has been shown how to choose filter parameters to meet the desired specifications. These filters exhibit maximally flat magnitude response and low side lobe energy as compared to Kaiser Window filter. Also a new type of adaptive B-spline filter has been developed in this paper. The application of the proposed filters for hybrid echo cancellation on digital cellular has been extensively studied. Results reveal the suitability of the proposed filters for such applications. This filter minimizes the mean square error using proportionate adaptive LMS algorithm. The proposed adaptive filter makes a perfect estimate of the hybrid echo.
{"title":"Novel Adaptive B-Spline Filter for Hybrid Echo Cancellation","authors":"Ratnakar Dash, Rutuparna Panda, B. Acharya, B. Majhi","doi":"10.1109/ICIINFS.2008.4798465","DOIUrl":"https://doi.org/10.1109/ICIINFS.2008.4798465","url":null,"abstract":"In this paper direct design of generalized B-spline filters has been presented. It has been shown how to choose filter parameters to meet the desired specifications. These filters exhibit maximally flat magnitude response and low side lobe energy as compared to Kaiser Window filter. Also a new type of adaptive B-spline filter has been developed in this paper. The application of the proposed filters for hybrid echo cancellation on digital cellular has been extensively studied. Results reveal the suitability of the proposed filters for such applications. This filter minimizes the mean square error using proportionate adaptive LMS algorithm. The proposed adaptive filter makes a perfect estimate of the hybrid echo.","PeriodicalId":429889,"journal":{"name":"2008 IEEE Region 10 and the Third international Conference on Industrial and Information Systems","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121766920","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 : 2008-12-01DOI: 10.1109/ICIINFS.2008.4798454
B. Pal, Somsubhra Gupta
In this article, the efficient use of a genetic algorithm (GA) to the goal programming (GP) formulation of interval valued multiobjective fractional programming problems (MOFPPs) is presented. In the proposed approach, first the interval arithmetic technique [1] is used to transform the fractional objectives with interval coefficients into the standard form of an interval programming problem with fractional criteria. Then, the redefined problem is converted into the conventional fractional goal objectives by using interval programming approach [2] and then introducing under-and over-deviational variables to each of the objectives. In the model formulation of the problem, both the aspects of GP methodologies, minsum GP and minimax GP [3] are taken into consideration to construct the interval function (achievement function) for accommodation within the ranges of the goal intervals specified in the decision situation where minimization of the regrets (deviations from the goal levels) to the extent possible within the decision environment is considered. In the solution process, instead of using conventional transformation approaches [4, 5, 6] to fractional programming, a GA approach is introduced directly into the GP framework of the proposed problem. In using the proposed GA, based on mechanism of natural selection and natural genetics, the conventional roulette wheel selection scheme and arithmetic crossover are used for achievement of the goal levels in the solution space specified in the decision environment. Here the chromosome representation of a candidate solution in the population of the GA method is encoded in binary form. Again, the interval function defined for the achievement of the fractional goal objectives is considered the fitness function in the reproduction process of the proposed GA. A numerical example is solved to illustrate the proposed approach and the model solution is compared with the solutions of the approaches [6, 7] studied previously.
{"title":"A Goal Programming approach for solving Interval valued Multiobjective Fractional Programming problems using Genetic Algorithm","authors":"B. Pal, Somsubhra Gupta","doi":"10.1109/ICIINFS.2008.4798454","DOIUrl":"https://doi.org/10.1109/ICIINFS.2008.4798454","url":null,"abstract":"In this article, the efficient use of a genetic algorithm (GA) to the goal programming (GP) formulation of interval valued multiobjective fractional programming problems (MOFPPs) is presented. In the proposed approach, first the interval arithmetic technique [1] is used to transform the fractional objectives with interval coefficients into the standard form of an interval programming problem with fractional criteria. Then, the redefined problem is converted into the conventional fractional goal objectives by using interval programming approach [2] and then introducing under-and over-deviational variables to each of the objectives. In the model formulation of the problem, both the aspects of GP methodologies, minsum GP and minimax GP [3] are taken into consideration to construct the interval function (achievement function) for accommodation within the ranges of the goal intervals specified in the decision situation where minimization of the regrets (deviations from the goal levels) to the extent possible within the decision environment is considered. In the solution process, instead of using conventional transformation approaches [4, 5, 6] to fractional programming, a GA approach is introduced directly into the GP framework of the proposed problem. In using the proposed GA, based on mechanism of natural selection and natural genetics, the conventional roulette wheel selection scheme and arithmetic crossover are used for achievement of the goal levels in the solution space specified in the decision environment. Here the chromosome representation of a candidate solution in the population of the GA method is encoded in binary form. Again, the interval function defined for the achievement of the fractional goal objectives is considered the fitness function in the reproduction process of the proposed GA. A numerical example is solved to illustrate the proposed approach and the model solution is compared with the solutions of the approaches [6, 7] studied previously.","PeriodicalId":429889,"journal":{"name":"2008 IEEE Region 10 and the Third international Conference on Industrial and Information Systems","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123345578","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 : 2008-12-01DOI: 10.1109/ICIINFS.2008.4798488
T. De, Puneet Jain, A. Pal, I. Sengupta
In the wavelength division multiplexing (WDM) optical networks, user's requirement is much less (in Mbps range) than the capacity of a wavelength channel (in Gbps range) and number of wavelength channels is limited in a fiber due to several constraints. Each wavelength channel between end nodes requires a pair of transmitter and receiver for digital to optical conversion. In order to decrease the cost of network resources (bandwidth, transceivers, etc.), it has become necessary to groom or multiplex traffic request efficiently over the given network topology. Most of work found in the literatures focus on single objective either maximize throughput or minimize transceivers or delay. In this study, we have presented a multi objective evolutionary algorithm (MOEA) based approach which is capable of optimizing multiple objectives i. e. throughput, transceiver requirement and intermediate propagation delay simultaneously. The performance of our approach has been evaluated through extensive simulation on different sets of traffic demands with different bandwidth granularities under various network topologies. The efficacy of our proposed approach has been established by comparing its performance with respect to existing algorithms.
{"title":"A Multi Objective Evolutionary Algorithm Based Approach for Traffic Grooming, Routing and Wavelength Assignment in Optical WDM Networks","authors":"T. De, Puneet Jain, A. Pal, I. Sengupta","doi":"10.1109/ICIINFS.2008.4798488","DOIUrl":"https://doi.org/10.1109/ICIINFS.2008.4798488","url":null,"abstract":"In the wavelength division multiplexing (WDM) optical networks, user's requirement is much less (in Mbps range) than the capacity of a wavelength channel (in Gbps range) and number of wavelength channels is limited in a fiber due to several constraints. Each wavelength channel between end nodes requires a pair of transmitter and receiver for digital to optical conversion. In order to decrease the cost of network resources (bandwidth, transceivers, etc.), it has become necessary to groom or multiplex traffic request efficiently over the given network topology. Most of work found in the literatures focus on single objective either maximize throughput or minimize transceivers or delay. In this study, we have presented a multi objective evolutionary algorithm (MOEA) based approach which is capable of optimizing multiple objectives i. e. throughput, transceiver requirement and intermediate propagation delay simultaneously. The performance of our approach has been evaluated through extensive simulation on different sets of traffic demands with different bandwidth granularities under various network topologies. The efficacy of our proposed approach has been established by comparing its performance with respect to existing algorithms.","PeriodicalId":429889,"journal":{"name":"2008 IEEE Region 10 and the Third international Conference on Industrial and Information Systems","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123778590","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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