{"title":"A protocol for Internet of Things : IETF 6TİSCH","authors":"Sedat Görmüs, A. Yavuz","doi":"10.1109/SIU.2017.7960606","DOIUrl":"https://doi.org/10.1109/SIU.2017.7960606","url":null,"abstract":"In recent years, there is an increased interest toward Wireless Sensor Networks (WSNs) with the introduction of application areas such as industrial internet, m-Health and Smart Grid. WSNs consist of sensors with wireless capability operating autonomously and reporting application specific parameters to a central entity. Many applications including industrial applications require the WSN to have a low and deterministic delay. Having a deterministic network delay in a WSN is challenging in the best case when traditional Medium Access Control (MAC) protocols are employed. To enable low power, high reliability and deterministic WSNs, IETF recently proposed 6TiSCH protocol which uses time slotted channel hopping (TSCH) MAC with IPv6 addressing. This protocol dynamically assigns bandwidth resources to the nodes in the network according to the application requirements. This paper describes an implementation of 6TiSCH protocol in Contiki OS and a distributed scheduling mechanism for this protocol. We evaluate the protocol performance using Cooja simulator for different networking scenarios and compare it to that of a slotted Aloha type access mechanism.","PeriodicalId":217576,"journal":{"name":"2017 25th Signal Processing and Communications Applications Conference (SIU)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125955838","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":"The effect of contrast enhancement techniques on mutual information based image registration","authors":"Ibrahim Atli, A. Saracoglu, O. S. Gedik","doi":"10.1109/SIU.2017.7960558","DOIUrl":"https://doi.org/10.1109/SIU.2017.7960558","url":null,"abstract":"Mutual Information (MI) is one of the main methods for efficient registration of multiband images in the literature. Since images on different bands are often expressed in different numbers of bits, contrast enhancement is inevitable before MI-based image registration. Although the contrast enhancement method used has a significant effect on the registration performance due to MI metric, this problem is not sufficiently addressed in the literature. In this paper, the effect of the outstanding contrast enhancement methods is examined on image registration performance. For this purpose, 16-bit thermal and 8-bit visible band satellite images were used and Monte Carlo tests were performed. First, random rotation and translation is applied to the image which is converted from 16-bit to 8-bit by contrast enhancement methods, then the transformation is tried to be estimated with MI and Multi-Level Single-Linkage (MLSL) optimization algorithm. Consequently, it is found that contrast enhancement methods have an effect on MI based image registration. Contrast limited adaptive histogram equalization (CLAHE) and AHE methods have the highest registration performance according to the tests performed.","PeriodicalId":217576,"journal":{"name":"2017 25th Signal Processing and Communications Applications Conference (SIU)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127014309","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":"Road-types classification using audio signal processing and SVM method","authors":"Daghan Dogan","doi":"10.1109/SIU.2017.7960154","DOIUrl":"https://doi.org/10.1109/SIU.2017.7960154","url":null,"abstract":"In this study, a low-cost system which classifies different road conditions (asphalt, gravel, snowy and stony road) using acoustic signal processing is proposed. Thus it is aimed to estimate road/tire friction forces in the active safety systems. Classical acoustic signal processing methods which are linear predictive coding (LPC), power spectrum (PSC) and mel-frequency cepstrum coefficients (MFCC) are used with minimum variance and maximum distance principle in this system. The classification process is also executed by support vector machine (SVM).","PeriodicalId":217576,"journal":{"name":"2017 25th Signal Processing and Communications Applications Conference (SIU)","volume":"172 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115281366","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":"Laser barcode-based surgical instrument tracking system","authors":"Ali Findik, Ozgun Pinarer, S. Turhan","doi":"10.1109/SIU.2017.7960441","DOIUrl":"https://doi.org/10.1109/SIU.2017.7960441","url":null,"abstract":"New technologies involve in health domain as in every field of our entire life. This paper presents a study on the surgical instruments which are an indispensable part of health institutions. In the study, an application-based software approach is introduced to track the surgical instruments on which square barcodes were placed via laser printers. Either in the literature or in the industrial sense, the surgical instrument tracking systems are at the prototype stage. The result of the feasibility studies clearly indicates the major requirements of this industrial domain: Turkish and user-friendly interface, efficiency and dynamic surgical instrument tracking system. In order to answer these needs, in this paper, Surgical Instrument Tracking System (CATS), which performs the monitoring/tracking of surgical instruments in health institutions, is presented. In particular, the track of these tools is provided via optic barcode readers and user-friendly workstations that are placed in various units of the healthcare institution (especially in centralized sterilization unit). With this study, every phase of sterilization cycle can be controlled. The system also aims to prevent the loss (and theft) of surgical instruments and to determine missing/incomplete surgical containers more quickly and effectively.","PeriodicalId":217576,"journal":{"name":"2017 25th Signal Processing and Communications Applications Conference (SIU)","volume":"235 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115582578","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":"Hardware friendly early stopping structure for polar code","authors":"Cemaleddin Şimşek, Cenk Albayrak, K. Türk","doi":"10.1109/SIU.2017.7960600","DOIUrl":"https://doi.org/10.1109/SIU.2017.7960600","url":null,"abstract":"Polar code has become a major milestone in information theory field in recent times. Researchers are still observing more efficient encoding and decoding structures. In this study, a new WIB based structure is proposed which reduces the computational complexity of WIB introduced as an early termination method for BP polar decoder in literature. Both proposed and WIB methods are implemented with VHDL and hardware complexities are compared via XILINX ISE synthesis tool. Most important complexity reduction came with removing unnecessary addition operations which make early termination method possible to implement only with bit-wise logical operations. Results show that along with complexity reduction proposed approach can also acquire same performance in half time compared to previous counterpart with fewer logic gates.","PeriodicalId":217576,"journal":{"name":"2017 25th Signal Processing and Communications Applications Conference (SIU)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115779756","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}
Huseyin Ugur Yildiz, B. Tavlı, Behnam Ojaghi Kahjogh
{"title":"Assessment of wireless sensor network lifetime reduction due to elimination of critical node sets","authors":"Huseyin Ugur Yildiz, B. Tavlı, Behnam Ojaghi Kahjogh","doi":"10.1109/SIU.2017.7960228","DOIUrl":"https://doi.org/10.1109/SIU.2017.7960228","url":null,"abstract":"Wireless Sensor Networks (WSN) are used in various critical monitoring applications such as military safety, environmental surveillance, etc. In such scenarios, it is common that WSN nodes are threatened by potential adversaries. Since the network lifetime is known to be the one of the most important performance metrics in WSNs, capturing the most critical nodes and incapacitating these nodes by various attacks may significantly reduce network lifetime. WSN lifetime reduction due to the elimination of the most critical sensor node set has never been investigated in the literature. In this study, we proposed two Linear Programming (LP) based algorithms to analyze the impact of capturing multiple critical nodes on WSN lifetime through numeric evaluations. Our results reveal that capturing the multiple critical nodes in WSN degrades the network lifetime greatly.","PeriodicalId":217576,"journal":{"name":"2017 25th Signal Processing and Communications Applications Conference (SIU)","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116400592","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":"Quadrature spatial modulation for large scale MIMO systems","authors":"Zehra Yiggit, E. Başar","doi":"10.1109/SIU.2017.7960233","DOIUrl":"https://doi.org/10.1109/SIU.2017.7960233","url":null,"abstract":"In this paper, a new multiple-input multiple-output (MIMO) transmission system, which is called space-time quadrature spatial modulation (ST-QSM), and combines quadrature spatial modulation (QSM) with space time block codes (STBCs) in order to achieve second order transmit diversity gain, is proposed. In the proposed ST-QSM scheme, the number of transmit antennas is subdivided into two groups and STBC systems with two, four and eight antennas, depending on the number of antennas in each group, are used to transmit real and imaginary parts of two M-ary quadrature amplitude modulation (M-QAM) symbols. The theoretical error probability analysis of the ST-QSM system is performed and the average bit error probability (ABEP) is obtained. Moreover, it is shown by extensive computer simulations that the ST-QSM system shows better error performance than QSM, space-time coded spatial modulation (STBC-SM) and Alamouti STBC systems.","PeriodicalId":217576,"journal":{"name":"2017 25th Signal Processing and Communications Applications Conference (SIU)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116241551","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":"Effects of autaptic coupling stregth and ion channel blockage on firing regularity in a Hodgkin-Huxley neuron","authors":"Rukiye Uzun, M. Ozer","doi":"10.1109/SIU.2017.7960153","DOIUrl":"https://doi.org/10.1109/SIU.2017.7960153","url":null,"abstract":"We investigate how firing dynamics of neuron changes with the autpse's coupling strength for different ratio of the blockage of potassium and sodium ion channels embedded in membranes affects, with using a biophysically more realistic Hodgkin-Huxley neuron model. In the study, we assume that neuron has an excitatory chemical autapse. It is found that the neuron dynamics does not change for too small coupling strength whether it increases after a certain coupling strength' value in case of different ion channel blockage case. Besides, it is determined that potassium ion channel blockage has a healing effect whereas sodium ion channel blockage has a destructive effect on the neuron dynamics increasing with the autaptic coupling strength.","PeriodicalId":217576,"journal":{"name":"2017 25th Signal Processing and Communications Applications Conference (SIU)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116659321","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":"Bit allocation with visual attention and visual distortion sensitivity","authors":"Mesut Pak, U. Bayazit","doi":"10.1109/SIU.2017.7960291","DOIUrl":"https://doi.org/10.1109/SIU.2017.7960291","url":null,"abstract":"In this work, a novel bit allocation method based on visual attention and distortion sensitivity is developed for JPEG2000. Although, visual attention map for an image can be measured by using well-known saliency map methods, true visual attention map can be obtained by conducting experiments to determine fixation points and their durations. A perception model might turn these duration of fixations into visual attention levels. Besides visual attention, visual distortion sensitivity may guide the bit allocation process effectively. This is because human visual system is more sensitive to the distortion around the edges than the distortion in the complex textured areas. In this work, a novel visual distortion sensitivity method that considers all edges without using a threshold for gradient magnitude and uses local entropy of gradient orientation distribution is proposed. Thus, the visual attention and the distortion sensitivity level of each code-block determine its quantization parameters. Using bit allocation based on the visual attention map provides higher subjective evaluation score than using bit allocation based on the post compression rate-distortion optimization method or on a previously proposed method based on the saliency map. Secondly, it is shown that the use of visual distortion sensitivity allows higher objective evaluation scores to be attained.","PeriodicalId":217576,"journal":{"name":"2017 25th Signal Processing and Communications Applications Conference (SIU)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131083955","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":"Sleep stage detection using sensor integration","authors":"Ipek Karakurt, M. Sarikaya, G. Ince","doi":"10.1109/SIU.2017.7960391","DOIUrl":"https://doi.org/10.1109/SIU.2017.7960391","url":null,"abstract":"Sleep, once thought to form a passive process in human life, is recently discovered to be not so passive with respect to brain activity at all. It has been possible to diagnose both physiological and psychological disorders by the inspection of sleep stages. This paper presents a model for sleep stage detection using EEG, heart rate and galvanic skin response sensors that are affordable and easily accessible. Sleep stage detection system was tested on human subjects using support vector machine and has achieved accuracy of over 87% in sleep stage detection.","PeriodicalId":217576,"journal":{"name":"2017 25th Signal Processing and Communications Applications Conference (SIU)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128037985","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}