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J. Inform. and Commun. Convergence Engineering最新文献

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Decimation Chain Modeling for Dual-Band Radio Receiver and Its Operation for Continuous Packet Connectivity 双频无线电接收机抽取链建模及其连续分组连接操作
J. Inform. and Commun. Convergence Engineering Pub Date : 2015-12-31 DOI: 10.6109/jicce.2015.13.4.235
C. Park, Sungkyung Park
{"title":"Decimation Chain Modeling for Dual-Band Radio Receiver and Its Operation for Continuous Packet Connectivity","authors":"C. Park, Sungkyung Park","doi":"10.6109/jicce.2015.13.4.235","DOIUrl":"https://doi.org/10.6109/jicce.2015.13.4.235","url":null,"abstract":"A decimation chain for multi-standard reconfigurable radios is presented for 900-MHz and 1,900-MHz dual-band cellular standards with a data interpolator based on the Lagrange method for adjusting the variable data rate to a fixed data rate appropriate for each standard. The two proposed configurations are analyzed and compared to provide insight into aliasing and the signal bandwidth by means of a newly introduced measure called interpolation error. The average interpolation error is reduced as the ratio of the sampling frequency to the signal BW is increased. The decimation chain and the multi-rate analogto-digital converter are simulated to compute the interpolation error and the output signal-to-noise ratio. Further, a method to operate the above-mentioned chain under a compressed mode of operation is proposed in order to guarantee continuous packet connectivity for inter-radio-access technologies. The presented decimation chain can be applied to LTE, WCDMA, GSM multi-mode multi-band digital front-end which will ultimately lead to the software-defined radio.","PeriodicalId":272551,"journal":{"name":"J. Inform. and Commun. Convergence Engineering","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133778541","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}
引用次数: 0
A Comparison of Spectrum-Sensing Algorithms Based on Eigenvalues 基于特征值的频谱感知算法比较
J. Inform. and Commun. Convergence Engineering Pub Date : 2015-12-31 DOI: 10.6109/jicce.2015.13.4.241
Syed Sajjad Ali, Jialong Liu, Chang Liu, Minglu Jin
{"title":"A Comparison of Spectrum-Sensing Algorithms Based on Eigenvalues","authors":"Syed Sajjad Ali, Jialong Liu, Chang Liu, Minglu Jin","doi":"10.6109/jicce.2015.13.4.241","DOIUrl":"https://doi.org/10.6109/jicce.2015.13.4.241","url":null,"abstract":"Cognitive radio has been attracting increased attention as an effective approach to improving spectrum efficiency. One component of cognitive radio, spectrum sensing, has an important relationship with the performance of cognitive radio. In this paper, after a summary and analysis of the existing spectrum-sensing algorithms, we report that the existing eigenvalue-based semi-blind detection algorithm and blind detection algorithm have not made full use of the eigenvalues of the received signals. Applying multi-antenna systems to cognitive users, we design a variety of spectrum-sensing algorithms based on the joint distribution of the eigenvalues of the received signal. Simulation results validate that the proposed algorithms in this paper are able to detect whether the signal of the primary user exists or not with high probability of detection in an environment with a low signal-to-noise ratio. Compared with traditional algorithms, the new algorithms have the advantages of high detection performance and strong robustness.","PeriodicalId":272551,"journal":{"name":"J. Inform. and Commun. Convergence Engineering","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121819588","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}
引用次数: 0
Pseudo-symmetrically Dispersion-Managed Optical Transmission Links with Midway OPC for Compensating for Distorted WDM Signals 利用中间OPC补偿WDM失真信号的伪对称色散管理光传输链路
J. Inform. and Commun. Convergence Engineering Pub Date : 2015-12-31 DOI: 10.6109/jicce.2015.13.4.228
Seong-Real Lee
{"title":"Pseudo-symmetrically Dispersion-Managed Optical Transmission Links with Midway OPC for Compensating for Distorted WDM Signals","authors":"Seong-Real Lee","doi":"10.6109/jicce.2015.13.4.228","DOIUrl":"https://doi.org/10.6109/jicce.2015.13.4.228","url":null,"abstract":"The system performance improvement in dispersion managed (DM) links combined with optical phase conjugator (OPC) for compensating for optical signal distortion due to group velocity dispersion and nonlinear fiber effects has been reported. However, in DM link combined OPC, the equalities of the lengths of single-mode fibers (SMFs), the length of dispersion compensating fibers (DCFs), the dispersion coefficient of DCF, and the residual dispersion per span (RDPS) with respect to an OPC restrict a flexible link configuration. Thus, in this paper, we propose a flexible optical link configuration with inequalities of link parameters, the so-called “pseudo-symmetric configuration.” Simulation results show that, in the restricted RDPS range of 450 ps/nm to 800 ps/nm, the improvement in the system performance of the proposed pseudo-symmetrically configured optical links is better than that of the asymmetrically configured optical links. Consequently, we confirmed that the proposed pseudo-symmetric configuration is effective and useful for implementing a reconfigurable long-haul wavelength-division multiplexing (WDM) network.","PeriodicalId":272551,"journal":{"name":"J. Inform. and Commun. Convergence Engineering","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121739829","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}
引用次数: 0
Improved 3D Resolution Analysis of N-Ocular Imaging Systems with the Defocusing Effect of an Imaging Lens 具有成像透镜散焦效应的n眼成像系统的改进三维分辨率分析
J. Inform. and Commun. Convergence Engineering Pub Date : 2015-12-31 DOI: 10.6109/jicce.2015.13.4.270
Min-Chul Lee, Kotaro Inoue, M. Cho
{"title":"Improved 3D Resolution Analysis of N-Ocular Imaging Systems with the Defocusing Effect of an Imaging Lens","authors":"Min-Chul Lee, Kotaro Inoue, M. Cho","doi":"10.6109/jicce.2015.13.4.270","DOIUrl":"https://doi.org/10.6109/jicce.2015.13.4.270","url":null,"abstract":"In this paper, we propose an improved framework to analyze an N-ocular imaging system under fixed constrained resources such as the number of image sensors, the pixel size of image sensors, the distance between adjacent image sensors, the focal length of image sensors, and field of view of image sensors. This proposed framework takes into consideration, for the first time, the defocusing effect of the imaging lenses according to the object distance. Based on the proposed framework, the Nocular imaging system such as integral imaging is analyzed in terms of depth resolution using two-point-source resolution analysis. By taking into consideration the defocusing effect of the imaging lenses using ray projection model, it is shown that an improved depth resolution can be obtained near the central depth plane as the number of cameras increases. To validate the proposed framework, Monte Carlo simulations are carried out and the results are analyzed.","PeriodicalId":272551,"journal":{"name":"J. Inform. and Commun. Convergence Engineering","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125037971","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}
引用次数: 0
Key Phase Mask Updating Scheme with Spatial Light Modulator for Secure Double Random Phase Encryption 基于空间光调制器的安全双随机相位加密密钥相位掩码更新方案
J. Inform. and Commun. Convergence Engineering Pub Date : 2015-12-31 DOI: 10.6109/JICCE.2015.13.4.280
S. Kwon, In-Ho Lee
{"title":"Key Phase Mask Updating Scheme with Spatial Light Modulator for Secure Double Random Phase Encryption","authors":"S. Kwon, In-Ho Lee","doi":"10.6109/JICCE.2015.13.4.280","DOIUrl":"https://doi.org/10.6109/JICCE.2015.13.4.280","url":null,"abstract":"Double random phase encryption (DRPE) is one of the well-known optical encryption techniques, and many techniques with DRPE have been developed for information security. However, most of these techniques may not solve the fundamental security problem caused by using fixed phase masks for DRPE. Therefore, in this paper, we propose a key phase mask updating scheme for DRPE to improve its security, where a spatial light modulator (SLM) is used to implement key phase mask updating. In the proposed scheme, updated key data are obtained by using previous image data and the first phase mask used in encryption. The SLM with the updated key is used as the second phase mask for encryption. We provide a detailed description of the method of encryption and decryption for a DRPE system using the proposed key updating scheme, and simulation results are also shown to verify that the proposed key updating scheme can enhance the security of the original DRPE.","PeriodicalId":272551,"journal":{"name":"J. Inform. and Commun. Convergence Engineering","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121812670","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}
引用次数: 0
Touch Screen Sensing Circuit with Rotating Auto-Zeroing Offset Cancellation 带有旋转自动调零偏移抵消的触摸屏传感电路
J. Inform. and Commun. Convergence Engineering Pub Date : 2015-08-28 DOI: 10.6109/jicce.2015.13.3.189
Dong-Min Won, Hyungwon Kim
{"title":"Touch Screen Sensing Circuit with Rotating Auto-Zeroing Offset Cancellation","authors":"Dong-Min Won, Hyungwon Kim","doi":"10.6109/jicce.2015.13.3.189","DOIUrl":"https://doi.org/10.6109/jicce.2015.13.3.189","url":null,"abstract":"In this paper, we present a rotating auto-zeroing offset cancellation technique, which can improve the performance of touch screen sensing circuits. Our target touch screen detection method employs multiple continuous sine waves to achieve a high speed for large touch screens. While conventional auto-zeroing schemes cannot handle such continuous signals properly, the proposed scheme does not suffer from switching noise and provides effective offset cancellation for continuous signals. Experimental results show that the proposed technique improves the signal-to-noise ratio by 14 dB compared to a conventional offset cancellation scheme. For the realistic simulation results, we used Cadence SPECTRE with an accurate TSP model and noise source. We also applied an asymmetric device size (10% MOS size mismatch) to the OP Amp design in order to measure the effectiveness of offset cancellation. We implemented the proposed circuit as part of a touch screen controller system-on-chip by using a Magnachip/SK Hynix 0.18-μm complementary metal-oxide semiconductor (CMOS) process.","PeriodicalId":272551,"journal":{"name":"J. Inform. and Commun. Convergence Engineering","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122421194","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}
引用次数: 5
Maximum Likelihood (ML)-Based Quantizer Design for Distributed Systems 基于最大似然(ML)的分布式系统量化器设计
J. Inform. and Commun. Convergence Engineering Pub Date : 2015-08-28 DOI: 10.6109/jicce.2015.13.3.152
Y. Kim
{"title":"Maximum Likelihood (ML)-Based Quantizer Design for Distributed Systems","authors":"Y. Kim","doi":"10.6109/jicce.2015.13.3.152","DOIUrl":"https://doi.org/10.6109/jicce.2015.13.3.152","url":null,"abstract":"We consider the problem of designing independently operating local quantizers at nodes in distributed estimation systems, where many spatially distributed sensor nodes measure a parameter of interest, quantize these measurements, and send the quantized data to a fusion node, which conducts the parameter estimation. Motivated by the discussion that the estimation accuracy can be improved by using the quantized data with a high probability of occurrence, we propose an iterative algorithm with a simple design rule that produces quantizers by searching boundary values with an increased likelihood. We prove that this design rule generates a considerably reduced interval for finding the next boundary values, yielding a low design complexity. We demonstrate through extensive simulations that the proposed algorithm achieves a significant performance gain with respect to traditional quantizer designs. A comparison with the recently published novel algorithms further illustrates the benefit of the proposed technique in terms of performance and design complexity.","PeriodicalId":272551,"journal":{"name":"J. Inform. and Commun. Convergence Engineering","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134409258","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}
引用次数: 1
CRF-Based Figure/Ground Segmentation with Pixel-Level Sparse Coding and Neighborhood Interactions 基于crf的像素级稀疏编码和邻域交互图/地分割
J. Inform. and Commun. Convergence Engineering Pub Date : 2015-08-28 DOI: 10.6109/jicce.2015.13.3.205
L. Zhang, Yongri Piao
{"title":"CRF-Based Figure/Ground Segmentation with Pixel-Level Sparse Coding and Neighborhood Interactions","authors":"L. Zhang, Yongri Piao","doi":"10.6109/jicce.2015.13.3.205","DOIUrl":"https://doi.org/10.6109/jicce.2015.13.3.205","url":null,"abstract":"In this paper, we propose a new approach to learning a discriminative model for figure/ground segmentation by incorporating the bag-of-features and conditional random field (CRF) techniques. We advocate the use of image patches instead of superpixels as the basic processing unit. The latter has a homogeneous appearance and adheres to object boundaries, while an image patch often contains more discriminative information (e.g., local image structure) to distinguish its categories. We use pixel-level sparse coding to represent an image patch. With the proposed feature representation, the unary classifier achieves a considerable binary segmentation performance. Further, we integrate unary and pairwise potentials into the CRF model to refine the segmentation results. The pairwise potentials include color and texture potentials with neighborhood interactions, and an edge potential. High segmentation accuracy is demonstrated on three benchmark datasets: the Weizmann horse dataset, the VOC2006 cow dataset, and the MSRC multiclass dataset. Extensive experiments show that the proposed approach performs favorably against the state-of-the-art approaches.","PeriodicalId":272551,"journal":{"name":"J. Inform. and Commun. Convergence Engineering","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126580652","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}
引用次数: 0
Full-Chip Power/Performance Benefits of Carbon Nanotube-Based Circuits 基于碳纳米管电路的全芯片功率/性能优势
J. Inform. and Commun. Convergence Engineering Pub Date : 2015-08-28 DOI: 10.6109/jicce.2015.13.3.180
Taigon Song, S. Lim
{"title":"Full-Chip Power/Performance Benefits of Carbon Nanotube-Based Circuits","authors":"Taigon Song, S. Lim","doi":"10.6109/jicce.2015.13.3.180","DOIUrl":"https://doi.org/10.6109/jicce.2015.13.3.180","url":null,"abstract":"As a potential alternative to the complementary metal-oxide semiconductor (CMOS) technology, many researchers are focusing on carbon-nanotube field-effect transistors (CNFETs) for future electronics. However, existing studies report the advantages of CNFETs over CMOS at the device level by using small-scale circuits, or over outdated CMOS technology. In this paper, we propose a methodology of analyzing CNFET-based circuits and study its impact at the full-chip scale. First, we design CNFET standard cells and use them to construct large-scale designs. Second, we perform parasitic extraction of CNFET devices and characterize their timing and power behaviors. Then, we perform a full-chip analysis and show the benefits of CNFET over CMOS in 45-nm and 20-nm designs. Our full-chip study shows that in the 45-nm design, CNFET circuits achieve a 5.91×/3.87× (delay/power) benefit over CMOS circuits at a density of 200 CNTs/μm. In the 20-nm design, CNFET achieves a 6.44×/3.01× (delay/power) benefit over CMOS at a density of 200 CNTs/μm.","PeriodicalId":272551,"journal":{"name":"J. Inform. and Commun. Convergence Engineering","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132992566","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}
引用次数: 0
Die-to-Die Parasitic Extraction Targeting Face-to-Face Bonded 3D ICs 针对面对面键合三维集成电路的模对模寄生提取
J. Inform. and Commun. Convergence Engineering Pub Date : 2015-08-28 DOI: 10.6109/jicce.2015.13.3.172
Taigon Song, S. Lim
{"title":"Die-to-Die Parasitic Extraction Targeting Face-to-Face Bonded 3D ICs","authors":"Taigon Song, S. Lim","doi":"10.6109/jicce.2015.13.3.172","DOIUrl":"https://doi.org/10.6109/jicce.2015.13.3.172","url":null,"abstract":"Face-to-face (F2F) bonding in three-dimensional integrated circuits (3D ICs), compared with other bonding styles, is closer to commercialization because of its benefits in terms of density, yield, and cost. However, despite the benefits that F2F bonding expect to provide, it’s physical nature has not been studied thoroughly. In this study, we, for the first time, extract cross-die (inter-die) parasitic elements from F2F bonds on the full-chip scale and compare them with the intra-die elements. This allows us to demonstrate the significant impact of field sharing across dies in F2F bonding on full-chip noise and critical path delay values. The baseline method used is the die-by-die method, where the parasitic elements of individual dies are extracted separately and the cross-die parasitic elements are ignored. Compared with this inaccurate method, which was the only method available until now, our first-of-its-kind holistic method corrects the delay error by 25.48% and the noise error by 175%.","PeriodicalId":272551,"journal":{"name":"J. Inform. and Commun. Convergence Engineering","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133731755","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}
引用次数: 2
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