{"title":"Power Control for Massive Multiuser MIMO Systems With Finite-Dimensional Channel","authors":"O. Saatlou, M. Ahmad, M. Swamy","doi":"10.1109/NEWCAS.2018.8585509","DOIUrl":"https://doi.org/10.1109/NEWCAS.2018.8585509","url":null,"abstract":"This paper considers a power control problem for multiuser massive multiple-input multiple-output systems, where a base station with a massive number of antennas simultaneously receives data signals from the various users. A physical channel model is studied in this paper, where the angular domain is divided into a finite number of distinct directions. It is assumed that the perfect channel-state information is available at the base station and each user has the knowledge of only the geometric attenuation and shadow fading of the channel-state information. The lower capacity bound of uplink channel for zero-forcing detector is derived. According to the geometric attenuation and shadow fading of each user's channel, the power among the users is controlled in such a way that the spectral efficiency is maximized and the minimum energy per bit is achieved in the cell. It is shown that the proposed power control method outperforms the existing works addressed in the literature.","PeriodicalId":112526,"journal":{"name":"2018 16th IEEE International New Circuits and Systems Conference (NEWCAS)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128777683","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}
{"title":"Comparison of CRC and KECCAK Based Message Authentication for Resource-Constrained Devices","authors":"Yang Yu, S. Tao, E. Dubrova","doi":"10.1109/NEWCAS.2018.8585692","DOIUrl":"https://doi.org/10.1109/NEWCAS.2018.8585692","url":null,"abstract":"With the growth of Internet-of-Things (IoT), billions of low-end devices become connected to provide new services appealing to users. The value of the information to which these devices have access via network is increasing, too, making them an attractive target for cyberattacks. Low-end IoT devices typically have very limited computing, storage and energy resources. Therefore, it is not always possible to use conventional cryptographic algorithms for their protection. In this paper, we investigate whether a cryptographically secure Cyclic Redundancy Check (CRC)-based Message Authentication Code (CMAC) and a KECCAK-based Message Authentication Code (KMAC) satisfy limitations of resource-constrained IoT devices. We implement the 128-bits CMAC and the 128-bits KMAC in 65nm CMOS and compare their performance. To our best knowledge, no hardware implementations of CMAC and KMAC have been presented so far. Our evaluation shows that, for 1.2V operating voltage and clock frequencies above 1 MHz, the CMAC128 is at least 32 times more area-efficient and at least 21 times more power-efficient than the KMAC128.","PeriodicalId":112526,"journal":{"name":"2018 16th IEEE International New Circuits and Systems Conference (NEWCAS)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133528772","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}
{"title":"Rapid prototyping of microfluidic devices and their applications","authors":"A. Rezaei, R. Izquierdo","doi":"10.1109/NEWCAS.2018.8585472","DOIUrl":"https://doi.org/10.1109/NEWCAS.2018.8585472","url":null,"abstract":"In this paper, rapid prototyping techniques for microfluidic master mold fabrication, using copper clads micromachining and 3D printing technologies are presented. Copper clad is a promising material for microfluidic mold fabrication due to its: smooth surface, availability of different copper and dielectric layer thicknesses, affordability and easiness of machining. In addition, 3D printing technology was investigated as a rapid prototyping technique to achieve appropriate master mold fabrication. Several molds with different channel features (width and height) were fabricated from each technique and were compared from the stand point of channel resolution, minimum space between channels, surface roughness, fabrication time and cost. Finally, microfluidic chips were fabricated using those molds by using molding technique based on Poly (dimethylsiloxane) (PDMS). The collection of these techniques offers precise channel heights starting from 15 m and different channel width ranging from 50 m in a short time fabrication process (i.e., 5min), without needing clean room equipment for molds fabrication.","PeriodicalId":112526,"journal":{"name":"2018 16th IEEE International New Circuits and Systems Conference (NEWCAS)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114684210","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}
{"title":"VCO-Based ADC With Digital Background Calibration in 65nm CMOS","authors":"Sulin Li, Jianping Gong, J. McNeill","doi":"10.1109/NEWCAS.2018.8585486","DOIUrl":"https://doi.org/10.1109/NEWCAS.2018.8585486","url":null,"abstract":"This paper presents a mostly digital Voltage-Controlled-Oscillator(VCO)-based Analog-to-Digital Converter (ADC) with digital background calibration. “Split ADC” architecture containing two channels is utilized for the calibration technique. In each split ADC channel, two equivalent pseudo-differential VCOs are used to construct a differential system to alleviate the even order distortions, and a lookup-table based digital correction with 1st order interpolation is implemented in the ADC’s backend for distortions and noise improvement. The proposed ADC combining VCOs and digital calibration engine simplifies the analog design procedure and takes advantage of scaling of CMOS to nanometer dimension. Simulation results in a 65 nm CMOS process targeting 13-b resolution achieves 12.5-b ENOB. DNL and INL are both within 1 LSB.","PeriodicalId":112526,"journal":{"name":"2018 16th IEEE International New Circuits and Systems Conference (NEWCAS)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124521250","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}
{"title":"TIA Linearity Analysis for Current Mode Receivers","authors":"M. Ghanad, C. Dehollain, Michael M. Green","doi":"10.1109/NEWCAS.2018.8585587","DOIUrl":"https://doi.org/10.1109/NEWCAS.2018.8585587","url":null,"abstract":"Current-mode signal processing offers superior linearity and flexibility in front-end implementation. The linearity of a low-input-impedance Trans-Impedance Amplifier (TIA), which is used as a buffer stage that follows a passive mixer, is important in determining the overall receiver performance. In this paper, the analysis for optimizing the linearity of the feedback TIA is presented. The results helps to estimate the minimum required amplifier gain for a targeted linearity. The accuracy of the analysis is validated by simulating different TIA parameters.","PeriodicalId":112526,"journal":{"name":"2018 16th IEEE International New Circuits and Systems Conference (NEWCAS)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122379718","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}