R. A. Fayadh, H. Fadhil, Sameer A. Dawood, F. Malek, F. S. Abdullah
{"title":"UWB selective rake receiver using multiple comparators","authors":"R. A. Fayadh, H. Fadhil, Sameer A. Dawood, F. Malek, F. S. Abdullah","doi":"10.1109/ICED.2014.7015760","DOIUrl":"https://doi.org/10.1109/ICED.2014.7015760","url":null,"abstract":"Recently, many literatures were presented to mitigate the noises or to suppress inter-symbol interference (ISI) and inter-frame interference (IFI) with systems operate in time hopping spread spectrum. The structure of the conventional rake-receiver is more complex that based on large number of multiple paths in wireless ultra wideband (UWB) communication systems. In this paper we proposed low complexity of rake-receiver that includes four fingers with additional finger used to support the outputs of other fingers by comparison process. This design is called multiple comparators rake-receiver. Low complexity receiver of maximum ratio combining (MRC) technique was simulated with perfect channel estimation. From simulation results, the optimized performance of the proposed scheme is presented by reducing the bit error rate (BER) with respect to conventional rake-receiver.","PeriodicalId":143806,"journal":{"name":"2014 2nd International Conference on Electronic Design (ICED)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126633262","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}
A. Shafura, N. Azhar, I. Saurdi, M. H. Mamat, M. Uzer, M. Rusop
{"title":"Oxygen-sensing characteristics of nanostructured Al-doped ZnO thin films","authors":"A. Shafura, N. Azhar, I. Saurdi, M. H. Mamat, M. Uzer, M. Rusop","doi":"10.1109/ICED.2014.7015847","DOIUrl":"https://doi.org/10.1109/ICED.2014.7015847","url":null,"abstract":"Nanostructured Aluminium (Al) doped Zinc Oxide (ZnO) was prepared by sol-gel spin-coating method to fabricate ZnO-based sensors. The oxygen-sensing characteristics were studied by varying the gas flow rate at room temperature. The electrical and structural properties of the films were carried out using current-voltage (IV) measurement, Atomic Force Microscopy (AFM) and Field Emission Scanning Electron Microscopy (FESEM), respectively. The porous nanostructures exhibited good sensitivity, of 73%, in the presence of 50 sccm of O2 flow rate. From this study, it is known that, ZnO thin film that was observed to have porous structure might enhance gas sensing performance.","PeriodicalId":143806,"journal":{"name":"2014 2nd International Conference on Electronic Design (ICED)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122164038","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}
Maziidah Mukhtar Ahmad, A. B. Jambek, Mohd Yusoff bin Mashor
{"title":"A study on microarray image gridding techniques for DNA analysis","authors":"Maziidah Mukhtar Ahmad, A. B. Jambek, Mohd Yusoff bin Mashor","doi":"10.1109/ICED.2014.7015793","DOIUrl":"https://doi.org/10.1109/ICED.2014.7015793","url":null,"abstract":"Microarray is one of the most promising tools available for researchers in the life sciences to study gene expression profiles. Through microarray analysis, gene expression levels can be obtained, and the biological information of a disease can be identified. The gene expression information embedded in the microarray is extracted using image-processing techniques. Gridding is one of the important processes used to extract features in DNA microarray, by assigning each spot in the microarray with individual coordinates for further data interpretation. This paper evaluates popular techniques of DNA microarray image gridding in the literature with an emphasis on gridding accuracy, speed, and the ability to remove noise. Based on our evaluation, the Otsu method can provide a better performance in terms of processing speed, accuracy, and ability to remove noise compared to other methods discussed in this paper.","PeriodicalId":143806,"journal":{"name":"2014 2nd International Conference on Electronic Design (ICED)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130955880","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":"Noninvasive diagnosis of carbon monoxide poisoning using Extended Modified Lambert Beer Model","authors":"A. Huong, X. Ngu","doi":"10.1109/ICED.2014.7015811","DOIUrl":"https://doi.org/10.1109/ICED.2014.7015811","url":null,"abstract":"We aim to demonstrate the feasibility of using Extended Modified Lambert Beer model (EMLB) to detect differences in percent mean blood oxyhemoglobin (SmO2) and carboxyhemoglobin (SmCO) saturations between smoking and nonsmoking populations. The value of these parameters is given by those that produced the closest agreement between the EMLB and the measured data optimized using the developed fitting routine. This fitting algorithm used extinction coefficients of light absorbing hemoglobin species in the wavelength range of 520-600 nm as the background information. The reflectance spectroscopy measurement on left thumb of five smokers and four nonsmokers at rest condition revealed percent SmO2 and SmCO with mean value of 81.9 ± 8.8% and 16.2 ± 4.8%, respectively, for smoking population. Meanwhile a higher mean SmO2 of 86.5 ± 1.6% and lower mean SmCO of 11.7 ± 1.6% are observed for nonsmoking individuals. These values are compared to that reported in the literature. This study concluded that the proposed model and fitting strategy is able to detect differences in percent blood saturations of smoking and nonsmoking volunteers, hence potentially be used to clinically detect carbon monoxide poisoning in men.","PeriodicalId":143806,"journal":{"name":"2014 2nd International Conference on Electronic Design (ICED)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116803020","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}
M. N. Nurol, A. R. Arief, M. Anuar, S. Aljunid, N. Din Keraf, Suki Arif
{"title":"Performance analysis of 2-D Extended-EDW Code for optical CDMA system","authors":"M. N. Nurol, A. R. Arief, M. Anuar, S. Aljunid, N. Din Keraf, Suki Arif","doi":"10.1109/ICED.2014.7015815","DOIUrl":"https://doi.org/10.1109/ICED.2014.7015815","url":null,"abstract":"Two-dimensional Optical Code Division Multiple Access (2-D OCDMA) has gained great interest among researchers in optical communication systems. This work is aimed to present an alternative way of formulating the spectral/spatial incoherent two-dimensional Extended Enhanced Double Weight (2-D Extended-EDW) code. This code is proposed to suppress the phase induced intensity noise (PIIN) by using multiple access interference (MAI) cancellation property. The numerical analysis shows that 2-D EDW code has a better performance, in terms of bit error rate (BER) and the cardinality compared with one-dimensional Enhanced Double Weight (1-D EDW) code. In comparison with different combinations of spatial and spectral code length for 2-D Extended-EDW code, we found that by increasing the number of time chip, it significantly enhances the performance of the system.","PeriodicalId":143806,"journal":{"name":"2014 2nd International Conference on Electronic Design (ICED)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126057677","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}
M. A. Yusof, M. Othman, S. Lee, M. Roslan, J. Leong
{"title":"Three-phase multilevel inverter with reduced number of active power semiconductor switches for solar PV modules","authors":"M. A. Yusof, M. Othman, S. Lee, M. Roslan, J. Leong","doi":"10.1109/ICED.2014.7015824","DOIUrl":"https://doi.org/10.1109/ICED.2014.7015824","url":null,"abstract":"This paper presents a three-phase switched-battery multilevel (SBM) inverter for solar photovoltaic (PV) applications. The proposed inverter requires less number of power MOSFETs and gate drivers, and therefore, it is expected to be more compact and reliable than the conventional cascaded H-bridge multilevel (CHBM) inverter. For example, sixty units of power MOSFETs are required to construct a three-phase 11-level CHBM inverter, whilst a SBM inverter with the same number of levels needs only 27 units. The switching losses of the SBM inverter are expected to be lower than that in conventional PWM-controlled inverters because the power MOSFETs in the SBM inverter are switched at a much lower frequency. In addition, the proposed inverter has an integrated charge mode operation which is very suitable for solar PV applications. The performance of an 11-level SBM inverter has been evaluated using PSIM software and the simulation results confirm that the proposed inverter is capable of producing low total harmonic distortion (THD) AC voltages without the need of bulky filters.","PeriodicalId":143806,"journal":{"name":"2014 2nd International Conference on Electronic Design (ICED)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115121910","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}
Mohd Shahidan Mohamad, Mohamad Halim Abd Wahid, Mohd Azarulsani Md Azidin, Nur Hidayah Abd Rahman, N. R. Yusof, N. Hambali
{"title":"Analysis of OTDM data for high speed all optical shift register","authors":"Mohd Shahidan Mohamad, Mohamad Halim Abd Wahid, Mohd Azarulsani Md Azidin, Nur Hidayah Abd Rahman, N. R. Yusof, N. Hambali","doi":"10.1109/ICED.2014.7015825","DOIUrl":"https://doi.org/10.1109/ICED.2014.7015825","url":null,"abstract":"All-optical shift register is the fundamental of building modules in order to develop the ultra-high speed optical time division network. This work shows the progresses that have been made, focusing on employing of semiconductor optical amplifier (SOA) to produce the all-optical shift register at a higher data rate. Using high-speed signal causes the shift register to partially work due to the limitation imposes by the SOA. Its bandwidth is further dropped if optic-electronic-optic conversions exist in the system. Optical time division multiplexing (OTDM) is introduced as a technique to improve this limitation thus increases data transmission and also its switching capability. In this paper, we analyze the behavior of the optical shift register base on the SOA's injection currents and input powers of the OTDM channels. The analysis is conducted by varying these two parameters while observing the best output from the shift register. Alternating block of pulses `zeros' and `ones' are measured and analyzed with the optimum number of OTDM channels. The highest data speed is recorded at 100 Gb/s.","PeriodicalId":143806,"journal":{"name":"2014 2nd International Conference on Electronic Design (ICED)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121684212","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}
Mohd Shuhanaz Zanar Azalan, M. Paulraj, Sazali bin Yaacob
{"title":"Classification of hand movement imagery tasks for brain machine interface using feed-forward network","authors":"Mohd Shuhanaz Zanar Azalan, M. Paulraj, Sazali bin Yaacob","doi":"10.1109/ICED.2014.7015844","DOIUrl":"https://doi.org/10.1109/ICED.2014.7015844","url":null,"abstract":"In this paper, a simple Brain Machine Interface (BMI) system that translates a change of rhythm from brain signal while performing a simulation of hand movement mentally into a real activity movement command is proposed. Four different imaginary tasks are used in the analysis process. A non-stimulus-based BCI approach is used to acquire the brain signal from ten different subjects using 19 channel EEG electrodes. Five spectral band features from each channel are extracted and associated to the respective mental tasks. The features are then classified using Feed-Forward Neural Network. The training is conducted using different ratio of training/testing data set. The developed network models are then tested for its validity. The performance of the developed network models are evaluated through simulation. The result shows that the proposed of both protocol approach and frequency sub band range selection can be an alternative general procedure to classify motor imagery task for a simple BMI system.","PeriodicalId":143806,"journal":{"name":"2014 2nd International Conference on Electronic Design (ICED)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122761660","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}
H. F. Liew, M. Mazalan, S. Johari, N. Safari, Y. Wahab
{"title":"Development of microstrip chebyshev low pass filters using laser micromachining","authors":"H. F. Liew, M. Mazalan, S. Johari, N. Safari, Y. Wahab","doi":"10.1109/ICED.2014.7015853","DOIUrl":"https://doi.org/10.1109/ICED.2014.7015853","url":null,"abstract":"This paper describes the development of the 5th order Chebyshev microstrip low pass filter using both Advanced Design Software (ADS) simulation and laser micromachining fabrication technique. The significance of this work is the introduction of a new concept used to fabricate low-pass filter which is using laser micromachine. At present, laser micromachine is used to complement conventional photolithography process in the production of MEMS devices. The use of laser micromachining can lead to finer finishes, improved accuracy and less process overhead. The fabrication is implemented using silicon substrate, as opposed to the commonly used FR4 substrate. The simulation and measurement results of microstrip low pass filter fabricated using the micromachine have been compared and excellent agreement is observed. The rejection performance of the filter is improved when the gain is approximately 40dB. The return loss matching response is observed to be near to -20dB. The fabricated circuit cut-off frequency is closer to the simulated design frequency of 2.5GHz.","PeriodicalId":143806,"journal":{"name":"2014 2nd International Conference on Electronic Design (ICED)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123892674","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":"Permittivity measurement of different types of soil for ground penetrating radar applications","authors":"M. Karim, M. Malek, M. Jamlos","doi":"10.1109/ICED.2014.7015854","DOIUrl":"https://doi.org/10.1109/ICED.2014.7015854","url":null,"abstract":"This paper discusses the permittivity measurement of different types of soil in Malaysia for Ground Penetrating Radar Application (GPR). Four different types of soil have been chosen as the samples which are wet sand, dry sand, wet clay and dry clay. The permittivity measurements of the samples are determined using Agilent Network Analyzer (E8362B) and Open ended coaxial probe method (Agilent Dielectric Probe). The detail process of the measurement and their results are discussed and explained. These measured data is very useful in detecting buried object underneath the ground surface for GPR application. In addition, the advantages and disadvantages using this method are also highlighted in this paper.","PeriodicalId":143806,"journal":{"name":"2014 2nd International Conference on Electronic Design (ICED)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115301885","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}