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2015 International Conference on Signal Processing and Communication (ICSC)最新文献

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Dielectric resonator antenna for angle diversity 用于角度分集的介质谐振器天线
2015 International Conference on Signal Processing and Communication (ICSC) Pub Date : 2015-03-16 DOI: 10.1109/ICSPCOM.2015.7150624
K. Mohit, V. Gupta, S. K. Rout
{"title":"Dielectric resonator antenna for angle diversity","authors":"K. Mohit, V. Gupta, S. K. Rout","doi":"10.1109/ICSPCOM.2015.7150624","DOIUrl":"https://doi.org/10.1109/ICSPCOM.2015.7150624","url":null,"abstract":"This paper presents a two element dielectric resonator antenna configuration, designed by using a magneto-dielectric material, excited by single co-axial feeding technique, by keeping them at the both sides of the co-axial probe for achieving the angle diversity. This material has been designed such that its temperature coefficient value is -1.02ppm/°C, which is near to zero. The microwave dielectric constant (εr) and permeability (μr) are determined by Hakki-Coleman dielectric resonator method and Nicholson-Ross-Weir conversion technique and found to be 8.02 and 1.64 respectively. The designed antenna shows its radiation toward two directions 46° and 308° at the resonance frequency of 4.81GHz, hence can be utilised for angle diversity. The bandwidth of the antenna is 400MHz, which is suitable for the application of Radiolocation and Fixed Mobile & Satellite communication. The obtained gain on both radiated directions is 2.93 dB and 3.72 dB respectively. This proposed antenna has been fabricated and there is good agreement between the simulated and measured results.","PeriodicalId":318875,"journal":{"name":"2015 International Conference on Signal Processing and Communication (ICSC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129268842","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
Double threshold energy detection using sequential cooperative spectrum sensing in Rayleigh fading 基于顺序协同频谱感知的瑞利衰落双阈值能量检测
2015 International Conference on Signal Processing and Communication (ICSC) Pub Date : 2015-03-16 DOI: 10.1109/ICSPCOM.2015.7150625
Libin K. Mathew, Pankaj Verma
{"title":"Double threshold energy detection using sequential cooperative spectrum sensing in Rayleigh fading","authors":"Libin K. Mathew, Pankaj Verma","doi":"10.1109/ICSPCOM.2015.7150625","DOIUrl":"https://doi.org/10.1109/ICSPCOM.2015.7150625","url":null,"abstract":"Spectrum sensing is the primary essentiality to monitor the presence of primary user in cognitive radios. Among all the spectrum sensing techniques energy detection is preferable because it is simple and prior knowledge of primary user is not required, but conventional energy detection is not preferable in low SNR regions. In this paper we discuss a cooperative double threshold method with two thresholds which are decided by an uncertainty parameter. In the confusion region we use a weighted sequential energy detection (WSED) method which considers a fixed number of past observations. For making a decision in confusion region, both the current and past observations are weighted and aggregated. Equations for probability of detection and probability of false alarm in Rayleigh channel are derived for the discussed scheme. Numerical results shows that the scheme gives better performance as compared to the conventional method.","PeriodicalId":318875,"journal":{"name":"2015 International Conference on Signal Processing and Communication (ICSC)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115294241","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: 3
Analysis of outage capacity of cognitive radio network with partial channel state information 考虑部分信道状态信息的认知无线网络中断容量分析
2015 International Conference on Signal Processing and Communication (ICSC) Pub Date : 2015-03-16 DOI: 10.1109/ICSPCOM.2015.7150612
Bindu Bharti, G. Singh
{"title":"Analysis of outage capacity of cognitive radio network with partial channel state information","authors":"Bindu Bharti, G. Singh","doi":"10.1109/ICSPCOM.2015.7150612","DOIUrl":"https://doi.org/10.1109/ICSPCOM.2015.7150612","url":null,"abstract":"In this paper, we have explored a potential spectrum sharing technique based on the power allocation in fading environment under transmit power constraint at secondary user/cognitive user (SU) and the interference power constraint at the primary user (PU). In addition to this, we have also analyzed the outage capacity limits over the fading channel, when the partial channel state information is provided to SU by the PU in the form of mean and variance. However, the minimum mean square error (MMSE) channel estimation technique is used to estimate the channel gain of SU and PU link. The outage capacity limit is analyzed under joint transmit power and interference outage power constraints. Moreover, the effect of error variance and outage constraint over the fading channel is also analyzed with constant peak transmit power of the SU.","PeriodicalId":318875,"journal":{"name":"2015 International Conference on Signal Processing and Communication (ICSC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116477931","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: 6
A hybrid-cascaded framework for MLEM based image reconstruction 基于MLEM的混合级联图像重建框架
2015 International Conference on Signal Processing and Communication (ICSC) Pub Date : 2015-03-16 DOI: 10.1109/ICSPCOM.2015.7150663
Shailendra Tiwari, R. Srivastava
{"title":"A hybrid-cascaded framework for MLEM based image reconstruction","authors":"Shailendra Tiwari, R. Srivastava","doi":"10.1109/ICSPCOM.2015.7150663","DOIUrl":"https://doi.org/10.1109/ICSPCOM.2015.7150663","url":null,"abstract":"This paper proposed a hybrid-cascaded framework for image reconstruction. This framework consists of breaking the reconstruction process into two parts viz. primary and secondary. The primary part consists of simple algebraic iterative technique using Simultaneous Algebraic Reconstruction Technique (SART) for image reconstruction. The task of primary reconstruction will be to provide an enhanced image to secondary part to be used as an initial estimate for reconstruction process. The secondary part is a hybrid combination of two parts namely the reconstruction part and the prior part. The reconstruction is done using Maximum Likelihood Expectation Maximization (MLEM) while median anisotropic diffusion (MedAD) filter is used as prior to deal with ill-posedness. Using primary and secondary reconstruction steps in a cascaded manner, yields significant improvements in reconstructed image quality. It also accelerates the convergence and provides enhanced results using the projection data. The obtained results justify the applicability of the proposed method.","PeriodicalId":318875,"journal":{"name":"2015 International Conference on Signal Processing and Communication (ICSC)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117013018","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
High-speed distribution network for delivering signals to subscribers of the mobile communication 用于向移动通信用户发送信号的高速分配网络
2015 International Conference on Signal Processing and Communication (ICSC) Pub Date : 2015-03-16 DOI: 10.1109/ICSPCom.2015.7150645
K. Sunduchkov, N. Bubnov, A. Golik, A. Sunduchkov
{"title":"High-speed distribution network for delivering signals to subscribers of the mobile communication","authors":"K. Sunduchkov, N. Bubnov, A. Golik, A. Sunduchkov","doi":"10.1109/ICSPCom.2015.7150645","DOIUrl":"https://doi.org/10.1109/ICSPCom.2015.7150645","url":null,"abstract":"Implementation of the proposed new technical solutions will provide delivery for 2000 users multimedia services ditta signals with up to 12 Mhit/s speed for each subscriber.","PeriodicalId":318875,"journal":{"name":"2015 International Conference on Signal Processing and Communication (ICSC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128624601","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 wideband coupled E-shaped patch antenna for RF energy harvesting 一种用于射频能量收集的宽带耦合e形贴片天线
2015 International Conference on Signal Processing and Communication (ICSC) Pub Date : 2015-03-16 DOI: 10.1109/ICSPCOM.2015.7150683
Gaurav Rai, A. Johari, R. Shamim
{"title":"A wideband coupled E-shaped patch antenna for RF energy harvesting","authors":"Gaurav Rai, A. Johari, R. Shamim","doi":"10.1109/ICSPCOM.2015.7150683","DOIUrl":"https://doi.org/10.1109/ICSPCOM.2015.7150683","url":null,"abstract":"Wireless energy harvesting of incident waves for electronic devices through rectenna investigated in recent years has proved to be efficient. In work published till date antennas used in rectenna are of limited bandwidth or bulky. This paper presents an E-patch antenna with improved bandwidth and efficiency. Techniques to make trade-offs required for widening the frequency band without variation in efficiency are introduced. The E-patch is electro-magnetically coupled with similar patches and the feeding point location is decided for further increase in bandwidth. An increase of 33% in bandwidth is noticeable with an advantage of multiband operation. The Epatch is investigated for WLAN frequency bands and the coupled patch is investigated for ISM as well as WLAN frequencies.","PeriodicalId":318875,"journal":{"name":"2015 International Conference on Signal Processing and Communication (ICSC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115100747","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
Finger gesture and pattern recognition based device security system 基于手指手势和模式识别的设备安全系统
2015 International Conference on Signal Processing and Communication (ICSC) Pub Date : 2015-03-16 DOI: 10.1109/ICSPCOM.2015.7150694
Shivam Khare
{"title":"Finger gesture and pattern recognition based device security system","authors":"Shivam Khare","doi":"10.1109/ICSPCOM.2015.7150694","DOIUrl":"https://doi.org/10.1109/ICSPCOM.2015.7150694","url":null,"abstract":"This research aims at introduction of a hand gesture recognition based system to recognize real time gestures in natural environment and compare patterns with image database for matching of image pairs to trigger unlocking of mobile devices. The efforts made in this direction during past relating to security systems for mobile devices has been a major concern and methods like draw pattern unlock, passcodes, facial and voice recognition technologies have already been employed to a fair level of extent, but these are quiet susceptible to hacks and greater ratio of recognition failure errors (especially in cases of voice and facial). A next step in HMI would be use of fingertip tracking based unlocking mechanism, which would employ minimalistic hardware like webcam or smartphone front camera. Image acquisition through MATLAB is followed up by conversion to grayscale and application of optimal filter for edge detection utilized in different conditions for optimal results in recognizing fingertips up to a precise level of accuracy. Pattern is traced at 60 fps for tracking and tracing and therefore cross referenced with the training image by deployment of neural networks for improved recognition efficiency. Data is registered in real time and device is unlocked at instance when SSIM takes a value above predefined threshold percentage or number. The aforementioned mechanism is employed in applications via user friendly GUI frontend and computational modelling through MATLAB for backend.","PeriodicalId":318875,"journal":{"name":"2015 International Conference on Signal Processing and Communication (ICSC)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117333951","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: 6
Surface waves minimisation in microstrip patch antenna using EBG substrate EBG基板微带贴片天线的表面波最小化
2015 International Conference on Signal Processing and Communication (ICSC) Pub Date : 2015-03-16 DOI: 10.1109/ICSPCOM.2015.7150631
Naveen Jaglan, Samir Dev Gupta
{"title":"Surface waves minimisation in microstrip patch antenna using EBG substrate","authors":"Naveen Jaglan, Samir Dev Gupta","doi":"10.1109/ICSPCOM.2015.7150631","DOIUrl":"https://doi.org/10.1109/ICSPCOM.2015.7150631","url":null,"abstract":"Bandwidth enhancement is a key research area in design of microstrip patch antennas. Electromagnetic Band Gap (EBG) structures can assist in bandwidth enhancement by effectively reducing surface waves excitation in patch antennas. Unlike normal surface, EBG surface are selective in supporting surface waves. The same is affected in this paper to design patch antenna with its resonant frequency lying in the band gap of EBG substrate. The paper analyses the performance of single patch antenna and patch antenna array embedded with EBG substrate. It is observed that the performance of the realized antenna is found to be better as compared to microstrip patch antenna using conventional substrates. Simulation results show improvements in the return loss, gain, directivity, front to back ratio and the radiation efficiency. Further reduction in mutual coupling between different antenna elements is also realized.","PeriodicalId":318875,"journal":{"name":"2015 International Conference on Signal Processing and Communication (ICSC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125721257","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: 8
Development of the concept of recycling of light 光的循环利用概念的发展
2015 International Conference on Signal Processing and Communication (ICSC) Pub Date : 2015-03-16 DOI: 10.1109/ICSPCOM.2015.7150613
B. Harmer, B. Rawat
{"title":"Development of the concept of recycling of light","authors":"B. Harmer, B. Rawat","doi":"10.1109/ICSPCOM.2015.7150613","DOIUrl":"https://doi.org/10.1109/ICSPCOM.2015.7150613","url":null,"abstract":"Research on increases in efficiency in illumination systems has been mainly focused on the luminaires used. This paper describes how optical fibers can be placed in a room to collect unused light and then transmit it to an area needing the illumination. By this method an efficiency can be realized by a reduction in the number or power consumption of luminaires. The light that is emitted from the fiber is measured in relation to fiber-to-source distances and alignments. The emission profiles of the optical fibers at different fiber-to-source distances and misalignments, as well as fiber-end preparation, affect the lighting distribution in the receiving area.","PeriodicalId":318875,"journal":{"name":"2015 International Conference on Signal Processing and Communication (ICSC)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131744273","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
Single MCCTA based single input three output electronically tunable current-mode Active-C biquad filter 基于单MCCTA的单输入三输出电子可调谐电流模式Active-C双组滤波器
2015 International Conference on Signal Processing and Communication (ICSC) Pub Date : 2015-03-16 DOI: 10.1109/ICSPCOM.2015.7150660
S. V. Singh, R. Tomar, D. Chauhan
{"title":"Single MCCTA based single input three output electronically tunable current-mode Active-C biquad filter","authors":"S. V. Singh, R. Tomar, D. Chauhan","doi":"10.1109/ICSPCOM.2015.7150660","DOIUrl":"https://doi.org/10.1109/ICSPCOM.2015.7150660","url":null,"abstract":"In this paper a new realization of electronically tunable current-mode Active-C biquad filter is presented. In the proposed current-mode biquad filter, only a single modified current conveyor transconductance amplifier (MCCTA) as active building block and two grounded capacitors as passive elements are used. The proposed filter can realize three filtering functions namely, low pass (LP), band pass (BP) and high pass (HP), simultaneously. It is also capable of realizing band reject (BR) and all pass (AP) responses. The pole frequency and quality factor of the proposed circuit can be electronically and orthogonally tuned via only biasing currents of the MCCTA. The theoretical results of the filter are verified by P-SPICE simulation where standard 0.25um CMOS process parameters from TSMC were used.","PeriodicalId":318875,"journal":{"name":"2015 International Conference on Signal Processing and Communication (ICSC)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131894186","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
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