Pub Date : 2019-03-15DOI: 10.23883/IJRTER.2019.5033.LL72M
Achind Pandey, J. Virdi, S. Panaskar
EGG is abnormal, it confirms that the problem probably is with the stomach’s muscles or the nerves that control the muscles. EGG is a non-invasive method for the recording of gastric myoelectrical activity that controls gastric motility. Abnormality in EGG arises due to recurrent nausea, vomiting, dyspepsia, stomach ulcer, cyclic vomiting syndrome, etc which signals that the stomach is not emptying food normally. If the EGG is similar to an electrocardiogram of the heart. It is the recording of the electrical signals that travel through the muscles of the stomach and control the muscle’s contraction. EGG used when there is a suspicion that the muscles of the stomach or the nerves controlling the muscles are not working normally. Recording is done by placing the electrode cutaneously over the stomach and the electrical signals from the stomach’s muscles are sensed by the electrode and recorded on a computer for analysis. In normal individuals, EGG is a regular electrical rhythm generated by the muscles of the stomach and the strength of the electrical current increases after the meal. In patients with abnormalities of the muscles or nerves of the stomach, the rhythm often is irregular or there is no post-meal increase in electric power.
{"title":"Electrogastrography- A Non-Invasive technique","authors":"Achind Pandey, J. Virdi, S. Panaskar","doi":"10.23883/IJRTER.2019.5033.LL72M","DOIUrl":"https://doi.org/10.23883/IJRTER.2019.5033.LL72M","url":null,"abstract":"EGG is abnormal, it confirms that the problem probably is with the stomach’s muscles or the nerves that control the muscles. EGG is a non-invasive method for the recording of gastric myoelectrical activity that controls gastric motility. Abnormality in EGG arises due to recurrent nausea, vomiting, dyspepsia, stomach ulcer, cyclic vomiting syndrome, etc which signals that the stomach is not emptying food normally. If the EGG is similar to an electrocardiogram of the heart. It is the recording of the electrical signals that travel through the muscles of the stomach and control the muscle’s contraction. EGG used when there is a suspicion that the muscles of the stomach or the nerves controlling the muscles are not working normally. Recording is done by placing the electrode cutaneously over the stomach and the electrical signals from the stomach’s muscles are sensed by the electrode and recorded on a computer for analysis. In normal individuals, EGG is a regular electrical rhythm generated by the muscles of the stomach and the strength of the electrical current increases after the meal. In patients with abnormalities of the muscles or nerves of the stomach, the rhythm often is irregular or there is no post-meal increase in electric power.","PeriodicalId":143099,"journal":{"name":"INTERNATIONAL JOURNAL OF RECENT TRENDS IN ENGINEERING & RESEARCH","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130817208","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 : 2019-03-15DOI: 10.23883/IJRTER.CONF.20190322.093.4XT7P
E. Ramkumar, R. Vani
{"title":"Education 4.0: Bridging the Gap between the Fresher’s & Industrial Expectations","authors":"E. Ramkumar, R. Vani","doi":"10.23883/IJRTER.CONF.20190322.093.4XT7P","DOIUrl":"https://doi.org/10.23883/IJRTER.CONF.20190322.093.4XT7P","url":null,"abstract":"","PeriodicalId":143099,"journal":{"name":"INTERNATIONAL JOURNAL OF RECENT TRENDS IN ENGINEERING & RESEARCH","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125953025","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 : 2019-03-04DOI: 10.23883/ijrter.conf.20190304.031.cp2lq
M. Saravanakumar, S. Ramesh, R. Ramya
{"title":"A Modified Three phase Current Source Inverter for Modular Photovoltaic Applications","authors":"M. Saravanakumar, S. Ramesh, R. Ramya","doi":"10.23883/ijrter.conf.20190304.031.cp2lq","DOIUrl":"https://doi.org/10.23883/ijrter.conf.20190304.031.cp2lq","url":null,"abstract":"","PeriodicalId":143099,"journal":{"name":"INTERNATIONAL JOURNAL OF RECENT TRENDS IN ENGINEERING & RESEARCH","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124975539","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 : 2019-03-04DOI: 10.23883/ijrter.conf.20190304.002.vdfj0
Aiswerya S.B, P. Deepa
Video copy-move forgery detection is used in multimedia forensics to protect digital videos from malicious use. Based on multiple similarity calculations and unstable image features the detection efficiency, robustness and applicability can be balanced. A novel approach has been proposed to detect frame copy-move forgeries. A coarse-to-fine detection strategy based on optical flow and stable parameters is designed. Coarse detection analyzes OF sum consistency to find suspected tampered points. Fine detection is then conducted for precise location of forgery, including duplicated frames pair matching based on OF correlation and validation checks to further reduce the false detections. The proposed approach is effective and efficient in detecting both unsmooth and common smooth forgery. Also it has high robustness. Keywords—Copy-move forgery, optical flow, coarse–to-fine detection, video passive forensics.
{"title":"COPY MOVE FORGERY DETECTION IN VIDEO FORENSICS USING OPTICAL FLOW FOR COARSE TO FINE DETECTION","authors":"Aiswerya S.B, P. Deepa","doi":"10.23883/ijrter.conf.20190304.002.vdfj0","DOIUrl":"https://doi.org/10.23883/ijrter.conf.20190304.002.vdfj0","url":null,"abstract":"Video copy-move forgery detection is used in multimedia forensics to protect digital videos from malicious use. Based on multiple similarity calculations and unstable image features the detection efficiency, robustness and applicability can be balanced. A novel approach has been proposed to detect frame copy-move forgeries. A coarse-to-fine detection strategy based on optical flow and stable parameters is designed. Coarse detection analyzes OF sum consistency to find suspected tampered points. Fine detection is then conducted for precise location of forgery, including duplicated frames pair matching based on OF correlation and validation checks to further reduce the false detections. The proposed approach is effective and efficient in detecting both unsmooth and common smooth forgery. Also it has high robustness. Keywords—Copy-move forgery, optical flow, coarse–to-fine detection, video passive forensics.","PeriodicalId":143099,"journal":{"name":"INTERNATIONAL JOURNAL OF RECENT TRENDS IN ENGINEERING & RESEARCH","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126363805","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 : 2019-03-04DOI: 10.23883/ijrter.conf.20190304.036.vaek3
C. P. Nirmal, Sindha Mathar, M. Thamaraikani, K. Sridhar
Optical character recognition (OCR) is the identification of printed characters using photoelectricdevices and computer software. It coverts images of typed, handwritten or printed text into machine encoded text from scanned document or from subtitle text superimposed on an image. In this research these images are converted into audio output. OCR is used in machine process such as cognitive computing, machine translation, text to speech ,key data and text mining. It is mainly used in the field of research in Character recognition , Artificial intelligence and computer vision .In this research , as the recognition process is done using OCR the character code in text files are processed using Raspberry Pi device on which it recognizes character using tesseract algorithm and python programming and audio output is listened. To use OCR for pattern recognition to perform Document image analysis (DIA) we use information in grid format in virtual digital library’s design and construction. This research mainly focuses on the OCR based automatic book reader for the visually impaired using Raspberry PI. Raspberry PI features a Broadcom system on a chip (SOC) which includes ARM compatible CPU and an on chip graphics processing unit GPU. It promotes Python programming as main programming language with support for BBC BASIC
{"title":"Raspberry Pi Based Reader for Blind Peoples","authors":"C. P. Nirmal, Sindha Mathar, M. Thamaraikani, K. Sridhar","doi":"10.23883/ijrter.conf.20190304.036.vaek3","DOIUrl":"https://doi.org/10.23883/ijrter.conf.20190304.036.vaek3","url":null,"abstract":"Optical character recognition (OCR) is the identification of printed characters using photoelectricdevices and computer software. It coverts images of typed, handwritten or printed text into machine encoded text from scanned document or from subtitle text superimposed on an image. In this research these images are converted into audio output. OCR is used in machine process such as cognitive computing, machine translation, text to speech ,key data and text mining. It is mainly used in the field of research in Character recognition , Artificial intelligence and computer vision .In this research , as the recognition process is done using OCR the character code in text files are processed using Raspberry Pi device on which it recognizes character using tesseract algorithm and python programming and audio output is listened. To use OCR for pattern recognition to perform Document image analysis (DIA) we use information in grid format in virtual digital library’s design and construction. This research mainly focuses on the OCR based automatic book reader for the visually impaired using Raspberry PI. Raspberry PI features a Broadcom system on a chip (SOC) which includes ARM compatible CPU and an on chip graphics processing unit GPU. It promotes Python programming as main programming language with support for BBC BASIC","PeriodicalId":143099,"journal":{"name":"INTERNATIONAL JOURNAL OF RECENT TRENDS IN ENGINEERING & RESEARCH","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130909867","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 : 2019-03-04DOI: 10.23883/ijrter.conf.20190304.006.atcmf
M. Subha, T. Rani
@IJRTER-2019, All Rights Reserved 33 (· ·) ( ∈ Abstract— Under rainy conditions the impact of rain streaks on images and video is often undesirable. The effects of rain can also severely affect the performance of outdoor vision system. The quality of the image is degraded by rain streaks. Hence it is necessary to remove rain streaks from single image which is a challenging problem. Towards fixing this problem the deep decompositioncomposition network is proposed. This paper designs a novel multi-task leaning architecture in an end-to-end manner to reduce the mapping range from input to output and boost the performance. Concretely, a decomposition net is built to split rain images into clean background and rain layers. Different from previous architectures, this model consists of, besides a component representing the desired clean image, an extra component for the rain layer. During the training phase, further employ a composition structure to reproduce the input by the separated clean image and rain information for improving the quality of decomposition. Furthermore, this design is also applicable to other layer decomposition tasks like dust removal. More importantly, this method only requires about 50ms, significantly faster than the competitors, to process a testing image in VGA resolution on a GTX 1080 GPU, making it attractive for practical use
{"title":"SINGLE IMAGE DE RAINING USING DEEP DECOMPOSITION COMPOSITION NETWORK","authors":"M. Subha, T. Rani","doi":"10.23883/ijrter.conf.20190304.006.atcmf","DOIUrl":"https://doi.org/10.23883/ijrter.conf.20190304.006.atcmf","url":null,"abstract":"@IJRTER-2019, All Rights Reserved 33 (· ·) ( ∈ Abstract— Under rainy conditions the impact of rain streaks on images and video is often undesirable. The effects of rain can also severely affect the performance of outdoor vision system. The quality of the image is degraded by rain streaks. Hence it is necessary to remove rain streaks from single image which is a challenging problem. Towards fixing this problem the deep decompositioncomposition network is proposed. This paper designs a novel multi-task leaning architecture in an end-to-end manner to reduce the mapping range from input to output and boost the performance. Concretely, a decomposition net is built to split rain images into clean background and rain layers. Different from previous architectures, this model consists of, besides a component representing the desired clean image, an extra component for the rain layer. During the training phase, further employ a composition structure to reproduce the input by the separated clean image and rain information for improving the quality of decomposition. Furthermore, this design is also applicable to other layer decomposition tasks like dust removal. More importantly, this method only requires about 50ms, significantly faster than the competitors, to process a testing image in VGA resolution on a GTX 1080 GPU, making it attractive for practical use","PeriodicalId":143099,"journal":{"name":"INTERNATIONAL JOURNAL OF RECENT TRENDS IN ENGINEERING & RESEARCH","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115460726","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 : 2019-03-04DOI: 10.23883/ijrter.conf.20190304.014.mbgxp
M. Moses, K. Yogeshvaran
LTE is widely used mobile communication technology. Long Term Evolution (LTE) standard is conceived as an all IP network to achieve higher data rate, low latency, scalable bandwidth, mobility and extended coverage. The network guarantees Quality of Service (QoS) for diverse applications such as VoIP, video and web browsing according to the Third Generation Partnership Project (3GPP) specifications. The Radio Resource Management (RRM) techniques such as packet scheduling algorithm play a vital role in providing such guarantees. The LTE introduces enhanced data link mechanisms to support successful implementation of new data services across the network. This paper presents a survey of downlink scheduling algorithms. The following scheduling algorithms are considered: Round Robin, Proportional Fair, Best CQI, Resource Fair and MaxMin. The comparative analysis of these algorithms is also presented. Keywords— LTE, downlink scheduling, Round Robin, Proportional Fair, Best CQI, Resource Fair
{"title":"A Comparative study of LTE Downlink Scheduling Algorithm","authors":"M. Moses, K. Yogeshvaran","doi":"10.23883/ijrter.conf.20190304.014.mbgxp","DOIUrl":"https://doi.org/10.23883/ijrter.conf.20190304.014.mbgxp","url":null,"abstract":"LTE is widely used mobile communication technology. Long Term Evolution (LTE) standard is conceived as an all IP network to achieve higher data rate, low latency, scalable bandwidth, mobility and extended coverage. The network guarantees Quality of Service (QoS) for diverse applications such as VoIP, video and web browsing according to the Third Generation Partnership Project (3GPP) specifications. The Radio Resource Management (RRM) techniques such as packet scheduling algorithm play a vital role in providing such guarantees. The LTE introduces enhanced data link mechanisms to support successful implementation of new data services across the network. This paper presents a survey of downlink scheduling algorithms. The following scheduling algorithms are considered: Round Robin, Proportional Fair, Best CQI, Resource Fair and MaxMin. The comparative analysis of these algorithms is also presented. Keywords— LTE, downlink scheduling, Round Robin, Proportional Fair, Best CQI, Resource Fair","PeriodicalId":143099,"journal":{"name":"INTERNATIONAL JOURNAL OF RECENT TRENDS IN ENGINEERING & RESEARCH","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114660593","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 : 2019-03-04DOI: 10.23883/ijrter.conf.20190304.040.7oz7o
S. S., Dhanesh Raj.T, P.Priyanka Darling Rosita
This paper deals with the deployment of a local three-phase four-wire (3P4W) electrical power distribution system (EPDS), using a singleto three-phase unified power quality conditioner (UPQC) topology, called UPQC-1Ph-to-3Ph. The topology is indicated for applications in rural or remote areas in which, for economic reasons, only EPDS with single-wire earth return are accessible to the consumer. Since the use of three-phase loads is increasing in these areas, access to a threephase distribution system becomes preponderant. By adopting a dual compensation strategy, the proposed UPQC-1Ph-to-3Ph is able of draining from the single-phase electrical grid a sinusoidal current and in phase with the voltage, resulting high-power factor. Furthermore, the system is also able to suppress grid voltage harmonics, as well as to compensate for other disturbance, such as voltage sags. Thus, a 3P4W system with regulated, balanced, and sinusoidal voltages with low-harmonic contents is provided for singleand three-phase loads. An analysis of the power flow through the series and parallel converters is performed in order to aid the designing of the power converters. Experimental results are presented for validating the proposal, as well as evaluating the static and dynamic performances of the proposed topology.
{"title":"SINGLE PHASE TO THREE PHASE UNIFIED POWER QUALITY CONDITIONER APPLIED IN SWER ELECTRIC POWER DISTRIBUTION GRIDS","authors":"S. S., Dhanesh Raj.T, P.Priyanka Darling Rosita","doi":"10.23883/ijrter.conf.20190304.040.7oz7o","DOIUrl":"https://doi.org/10.23883/ijrter.conf.20190304.040.7oz7o","url":null,"abstract":"This paper deals with the deployment of a local three-phase four-wire (3P4W) electrical power distribution system (EPDS), using a singleto three-phase unified power quality conditioner (UPQC) topology, called UPQC-1Ph-to-3Ph. The topology is indicated for applications in rural or remote areas in which, for economic reasons, only EPDS with single-wire earth return are accessible to the consumer. Since the use of three-phase loads is increasing in these areas, access to a threephase distribution system becomes preponderant. By adopting a dual compensation strategy, the proposed UPQC-1Ph-to-3Ph is able of draining from the single-phase electrical grid a sinusoidal current and in phase with the voltage, resulting high-power factor. Furthermore, the system is also able to suppress grid voltage harmonics, as well as to compensate for other disturbance, such as voltage sags. Thus, a 3P4W system with regulated, balanced, and sinusoidal voltages with low-harmonic contents is provided for singleand three-phase loads. An analysis of the power flow through the series and parallel converters is performed in order to aid the designing of the power converters. Experimental results are presented for validating the proposal, as well as evaluating the static and dynamic performances of the proposed topology.","PeriodicalId":143099,"journal":{"name":"INTERNATIONAL JOURNAL OF RECENT TRENDS IN ENGINEERING & RESEARCH","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123456591","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 : 2019-03-04DOI: 10.23883/ijrter.conf.20190304.037.u7ci1
M. Soosai Vimal, K. Selva, N. Lingeswaran, S. Prabhu
{"title":"Smart Farming","authors":"M. Soosai Vimal, K. Selva, N. Lingeswaran, S. Prabhu","doi":"10.23883/ijrter.conf.20190304.037.u7ci1","DOIUrl":"https://doi.org/10.23883/ijrter.conf.20190304.037.u7ci1","url":null,"abstract":"","PeriodicalId":143099,"journal":{"name":"INTERNATIONAL JOURNAL OF RECENT TRENDS IN ENGINEERING & RESEARCH","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123529045","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 : 2019-03-04DOI: 10.23883/ijrter.conf.20190304.024.mrhue
Jenish Dev, B. Mathumitha, M. A. Bharathi, M. Rachel, A. Anu
In cognitive radio (CR) networks, cooperative spectrum sensing is utilized to improve the sensing performance to avoid potential interference to primary users (PUs) and increase spectrum access opportunities for secondary users (SUs). The problem of how to collect sensing data should be solved for the implementation of the cooperative sensing. A cooperative spectrum sensing process is divided into three phases: individual sensing/detection, reporting/fusion, and data transmission. In the reporting phase, one or more reporting channels are needed to transmit individual sensing results to a fusion center (FC), and global spectrum sensing results are determined at the FC. The number of required reporting channels depends on the number of spectrum sensors or SUs, which relates to reporting channel efficiency and channel scheduling complexity. In the proposed scheme, random access is used to collect the spectrum sensing data of the secondary users during collection period and the length of the collection period is determined adaptively based on the sensing data collected so far. Thus, complex slot management for the collection of the sensing data is not necessary. Also we design a reporting channel scheme based on random access protocols, including slotted Aloha and reservation-Aloha. Performance evaluations in terms of PU detection probabilities and false alarm probabilities considering the proposed reporting channels are presented.
{"title":"COOPERATIVE SPECTRUM SENSING IN COGNITIVE RADIO","authors":"Jenish Dev, B. Mathumitha, M. A. Bharathi, M. Rachel, A. Anu","doi":"10.23883/ijrter.conf.20190304.024.mrhue","DOIUrl":"https://doi.org/10.23883/ijrter.conf.20190304.024.mrhue","url":null,"abstract":"In cognitive radio (CR) networks, cooperative spectrum sensing is utilized to improve the sensing performance to avoid potential interference to primary users (PUs) and increase spectrum access opportunities for secondary users (SUs). The problem of how to collect sensing data should be solved for the implementation of the cooperative sensing. A cooperative spectrum sensing process is divided into three phases: individual sensing/detection, reporting/fusion, and data transmission. In the reporting phase, one or more reporting channels are needed to transmit individual sensing results to a fusion center (FC), and global spectrum sensing results are determined at the FC. The number of required reporting channels depends on the number of spectrum sensors or SUs, which relates to reporting channel efficiency and channel scheduling complexity. In the proposed scheme, random access is used to collect the spectrum sensing data of the secondary users during collection period and the length of the collection period is determined adaptively based on the sensing data collected so far. Thus, complex slot management for the collection of the sensing data is not necessary. Also we design a reporting channel scheme based on random access protocols, including slotted Aloha and reservation-Aloha. Performance evaluations in terms of PU detection probabilities and false alarm probabilities considering the proposed reporting channels are presented.","PeriodicalId":143099,"journal":{"name":"INTERNATIONAL JOURNAL OF RECENT TRENDS IN ENGINEERING & RESEARCH","volume":"14 6 Pt 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123715794","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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