B. Rahul, V. A. Libi Mol, Biju Gopal, S. Prakash, C. Aanandan
High impedance surface has found promising application as antenna ground plane. This paper presents the analysis of a 2.6 GHz low profile folded dipole over High Impedance Surface. The antenna can operate over the frequency range(2.5GHz-2.7GHz) in the MMDS band. The unit cell of HIS, Folded dipole and its feed network has been modeled and optimized using FDTD tool. Feed network comprises of BALUN providing interconnection between coplanar and twin line. 8% impedance bandwidth is obtained. AMC characteristics of HIS made possible low profile configuration of antenna effectively replacing the role of PEC as ground plane. Reduction in antenna size together with improvement in gain, directivity has been achieved using new ground plane. The structure has been fabricated and measured results show good agreement with the simulated results.
{"title":"2.6 GHz Planar Dipole Antenna over High Impedance Surface","authors":"B. Rahul, V. A. Libi Mol, Biju Gopal, S. Prakash, C. Aanandan","doi":"10.1109/ICACC.2015.24","DOIUrl":"https://doi.org/10.1109/ICACC.2015.24","url":null,"abstract":"High impedance surface has found promising application as antenna ground plane. This paper presents the analysis of a 2.6 GHz low profile folded dipole over High Impedance Surface. The antenna can operate over the frequency range(2.5GHz-2.7GHz) in the MMDS band. The unit cell of HIS, Folded dipole and its feed network has been modeled and optimized using FDTD tool. Feed network comprises of BALUN providing interconnection between coplanar and twin line. 8% impedance bandwidth is obtained. AMC characteristics of HIS made possible low profile configuration of antenna effectively replacing the role of PEC as ground plane. Reduction in antenna size together with improvement in gain, directivity has been achieved using new ground plane. The structure has been fabricated and measured results show good agreement with the simulated results.","PeriodicalId":368544,"journal":{"name":"2015 Fifth International Conference on Advances in Computing and Communications (ICACC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124373145","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}
As semiconductor device geometry scales down, the Short Channel Effects (SCE) are dominating. To reduce the SCE, gate oxide thickness is reduced. This leads to increase in gate leakage current. To overcome the SCE and to control the gate leakage current, Gate All Around (GAA) structure is proposed with optimum values of fin dimensions and thickness of the gate oxide. The performance of GAA MOSFET with gate oxide HfO2 are simulated and compared with conventional gate oxide SiO2 for the same Effective Oxide Thickness (EOT) and fin dimensions. It has been shown here that the performance of the GAA structure with HfO2 as gate dielectric is comparable with the performance of the optimized GAA structure with the traditional SiO2 dielectric. According to International Technology Roadmap for Semiconductors (ITRS), the EOT for gate lengths below 9.7nm is less than 0.6nm. It becomes very difficult to maintain a thin interfacial layer of SiO2 of around 0.5nm along with High K such as HfO2, in turn it leads to increase in manufacturing complexity and cost. The threshold voltage gets affected as thickness of the gate oxide varies, but the proposed GAA structure has wrap around gate structure and thin fin width(height), which makes better electrostatic control over the channel, hence effect on the threshold voltage shift is nullified. All the simulations are performed using the 3D Sentaurus TCAD Device simulator. Here, we are concluding that proposed device structure has better performance over nominal structure with gate oxide HfO2.
{"title":"Design Space Exploration of 14nm Gate All around MOSFET","authors":"Rafeek Alas, K. Bailey","doi":"10.1109/ICACC.2015.76","DOIUrl":"https://doi.org/10.1109/ICACC.2015.76","url":null,"abstract":"As semiconductor device geometry scales down, the Short Channel Effects (SCE) are dominating. To reduce the SCE, gate oxide thickness is reduced. This leads to increase in gate leakage current. To overcome the SCE and to control the gate leakage current, Gate All Around (GAA) structure is proposed with optimum values of fin dimensions and thickness of the gate oxide. The performance of GAA MOSFET with gate oxide HfO2 are simulated and compared with conventional gate oxide SiO2 for the same Effective Oxide Thickness (EOT) and fin dimensions. It has been shown here that the performance of the GAA structure with HfO2 as gate dielectric is comparable with the performance of the optimized GAA structure with the traditional SiO2 dielectric. According to International Technology Roadmap for Semiconductors (ITRS), the EOT for gate lengths below 9.7nm is less than 0.6nm. It becomes very difficult to maintain a thin interfacial layer of SiO2 of around 0.5nm along with High K such as HfO2, in turn it leads to increase in manufacturing complexity and cost. The threshold voltage gets affected as thickness of the gate oxide varies, but the proposed GAA structure has wrap around gate structure and thin fin width(height), which makes better electrostatic control over the channel, hence effect on the threshold voltage shift is nullified. All the simulations are performed using the 3D Sentaurus TCAD Device simulator. Here, we are concluding that proposed device structure has better performance over nominal structure with gate oxide HfO2.","PeriodicalId":368544,"journal":{"name":"2015 Fifth International Conference on Advances in Computing and Communications (ICACC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117145041","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}
Verification has indisputably become the primary challenge today with recent industry studies estimating that half of all chips manufactured require one or more re-spins. Ideally the performance of the design should be verified for all possible circumstances under which it might be operated in the real world. Unfortunately, it requires a long time to generate and run test sequences. Under the time to market pressure, it is very time consuming to write all test programs manually. This brings about the necessity of developing a random test program generator (RTPG). Proposed RTPG is for verifying the SPARC processor architecture. The approach is in classifying general type of bugs that can get into the EXU unit of SPARC T1 processor design and introducing design defects in the RTL. Several defective models are developed covering the entire functional blocks in the EXU and several coverage models for the test cases run on the defective design were also developed. The direct and random test case generation is applied on the buggy model and various coverage reports are analyzed. This work tends to look back at the fact that verification is a process that is never truly complete. We understand that designs are error-prone and so, the objective of verification is to detect the errors. Yet, no one can really prove that the design is error-free.
{"title":"Design Defect Diagnosis in a Buggy Model of SPARC T1 Processor Using Random Test Program Generator","authors":"K. Brijmohan, Nutan Hegde, Lekha Pankaj","doi":"10.1109/ICACC.2015.80","DOIUrl":"https://doi.org/10.1109/ICACC.2015.80","url":null,"abstract":"Verification has indisputably become the primary challenge today with recent industry studies estimating that half of all chips manufactured require one or more re-spins. Ideally the performance of the design should be verified for all possible circumstances under which it might be operated in the real world. Unfortunately, it requires a long time to generate and run test sequences. Under the time to market pressure, it is very time consuming to write all test programs manually. This brings about the necessity of developing a random test program generator (RTPG). Proposed RTPG is for verifying the SPARC processor architecture. The approach is in classifying general type of bugs that can get into the EXU unit of SPARC T1 processor design and introducing design defects in the RTL. Several defective models are developed covering the entire functional blocks in the EXU and several coverage models for the test cases run on the defective design were also developed. The direct and random test case generation is applied on the buggy model and various coverage reports are analyzed. This work tends to look back at the fact that verification is a process that is never truly complete. We understand that designs are error-prone and so, the objective of verification is to detect the errors. Yet, no one can really prove that the design is error-free.","PeriodicalId":368544,"journal":{"name":"2015 Fifth International Conference on Advances in Computing and Communications (ICACC)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127249616","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. S. Pathma Priyaa, Adil Mohammed, C. Ambili, N. S. Anusree, Anne Varghese Thekekara, R. Mohan, S. Mridula
The paper presents a compact sensor antenna for soil moisture measurement. With a simple measurement setup, the method is valid for all types of soil. Overall structure of the antenna is 12mm × 12mm × 1.6mm. A 10 arm spiral antenna is embedded onto a 50 Ω Asymmetric Coplanar Strip transmission line. The antenna is fabricated on a substrate with εr =4.4 and loss tangent 0.02. The antenna resonates at 2.48 GHz with a bandwidth of 25 MHz. The resonant frequency of the antenna shifts depending on the material in which the antenna is placed. The soil moisture content is found by the relative shift of S11 of the sensor antenna. Sensors can be used in real environment especially in the agricultural domain to find the dry or humid nature of the soil in the field at any particular time of the year. It can also be used to sense the presence of water in remote areas.
{"title":"Microwave Sensor Antenna for Soil Moisture Measurement","authors":"A. S. Pathma Priyaa, Adil Mohammed, C. Ambili, N. S. Anusree, Anne Varghese Thekekara, R. Mohan, S. Mridula","doi":"10.1109/ICACC.2015.92","DOIUrl":"https://doi.org/10.1109/ICACC.2015.92","url":null,"abstract":"The paper presents a compact sensor antenna for soil moisture measurement. With a simple measurement setup, the method is valid for all types of soil. Overall structure of the antenna is 12mm × 12mm × 1.6mm. A 10 arm spiral antenna is embedded onto a 50 Ω Asymmetric Coplanar Strip transmission line. The antenna is fabricated on a substrate with εr =4.4 and loss tangent 0.02. The antenna resonates at 2.48 GHz with a bandwidth of 25 MHz. The resonant frequency of the antenna shifts depending on the material in which the antenna is placed. The soil moisture content is found by the relative shift of S11 of the sensor antenna. Sensors can be used in real environment especially in the agricultural domain to find the dry or humid nature of the soil in the field at any particular time of the year. It can also be used to sense the presence of water in remote areas.","PeriodicalId":368544,"journal":{"name":"2015 Fifth International Conference on Advances in Computing and Communications (ICACC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126041401","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}
Urinary tract infection is one of the most common bacterial infection in humans and a major cause for outpatient consults. Spotting of pathogens in urine smears is taken to be the first clue that infection is present. In this paper, a new algorithm is proposed for color-feature extraction of microorganisms present in urine smear images. The proposed method was implemented on 60 test image samples. The results indicate that our method is a promising approach towards fully automating segmentation, identification and counting of Candida, Gram-Negative Bacilli and Gram-Positive Cocci in urine smear images.
{"title":"A General Approach for Color Feature Extraction of Microorganisms in Urine Smear Images","authors":"Shaeez Usman Abdulla, Hridya T G, Vrinda V. Nair","doi":"10.1109/ICACC.2015.44","DOIUrl":"https://doi.org/10.1109/ICACC.2015.44","url":null,"abstract":"Urinary tract infection is one of the most common bacterial infection in humans and a major cause for outpatient consults. Spotting of pathogens in urine smears is taken to be the first clue that infection is present. In this paper, a new algorithm is proposed for color-feature extraction of microorganisms present in urine smear images. The proposed method was implemented on 60 test image samples. The results indicate that our method is a promising approach towards fully automating segmentation, identification and counting of Candida, Gram-Negative Bacilli and Gram-Positive Cocci in urine smear images.","PeriodicalId":368544,"journal":{"name":"2015 Fifth International Conference on Advances in Computing and Communications (ICACC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123677654","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}
Shot boundary detection (SBD) is the first step towards video indexing and content based video management. Due to availability of low cost storage media devices, and broadband data connection, digital videos are becoming widely used. However, the increasing availability of digital video has not been accompanied by an increase in its ease of accessibility. If we want to see a clip of interest, we have to sequentially browse through the video. This is an extremely time consuming and tedious process. So, accurate shot boundary detection plays vital role to organize video contents into meaningful parts for video scene analysis. A shot is defined as an unbroken sequence of frames taken from camera. Shot transitions can be either abrupt (cut) or gradual (fades, dissolves, wipes). In this paper, a new shot boundary detection (SBD) method is proposed using Structural SIMilarity (SSIM) Index. The abrupt cuts are identified using SSIM and gradual transitions(fades) are identified using standard deviation plot of the frames in the video. The proposed method only needs mean, standard deviation and co-variance of the frames as basic input parameters for detecting cuts and gradual transitions. The performance of the proposed method is comparable with that of the existing global and local histogram method for SBD.
{"title":"Shot Boundary Detection Using Structural Similarity Index","authors":"Index Srilakshmi","doi":"10.1109/ICACC.2015.94","DOIUrl":"https://doi.org/10.1109/ICACC.2015.94","url":null,"abstract":"Shot boundary detection (SBD) is the first step towards video indexing and content based video management. Due to availability of low cost storage media devices, and broadband data connection, digital videos are becoming widely used. However, the increasing availability of digital video has not been accompanied by an increase in its ease of accessibility. If we want to see a clip of interest, we have to sequentially browse through the video. This is an extremely time consuming and tedious process. So, accurate shot boundary detection plays vital role to organize video contents into meaningful parts for video scene analysis. A shot is defined as an unbroken sequence of frames taken from camera. Shot transitions can be either abrupt (cut) or gradual (fades, dissolves, wipes). In this paper, a new shot boundary detection (SBD) method is proposed using Structural SIMilarity (SSIM) Index. The abrupt cuts are identified using SSIM and gradual transitions(fades) are identified using standard deviation plot of the frames in the video. The proposed method only needs mean, standard deviation and co-variance of the frames as basic input parameters for detecting cuts and gradual transitions. The performance of the proposed method is comparable with that of the existing global and local histogram method for SBD.","PeriodicalId":368544,"journal":{"name":"2015 Fifth International Conference on Advances in Computing and Communications (ICACC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123775674","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}
Abhay M. Morey, S. Bhujade, Tapas K. Bhuiya, S. Thakur, T. Pandey
MRI scanner is the most important diagnostic tool that aids in the diagnosis of diseases and offers most sensitive and non-invasive way of Imaging. The sophisticated tool helps clinician to understand the cause of patient's particular health issue. RF Surface coils are used in MRI for better signal reception as they are more sensitive to signal close to the coil, thus detecting signals from organ of interest more efficiently. Hence attempts are made in order to improve the performance of the coil with respect to its signal to noise ratio, penetration depth, Specific Absorption Rate, etc. In this paper, we have designed, simulated and fabricated two designs of MRI surface coil for 1.5 Tesla scanner. A balun is designed to feed the unbalanced coaxial signal to a balanced coil. Significant improvement in the Q factor and reduction of the bandwidth was observed in Design B which improves SNR of the coil as compared to traditional surface coil Design A. Simulation and experimental result have been compared to validate the proposed design.
{"title":"Comparative Analysis on Surface Coil for 1.5T MRI Scanner","authors":"Abhay M. Morey, S. Bhujade, Tapas K. Bhuiya, S. Thakur, T. Pandey","doi":"10.1109/ICACC.2015.98","DOIUrl":"https://doi.org/10.1109/ICACC.2015.98","url":null,"abstract":"MRI scanner is the most important diagnostic tool that aids in the diagnosis of diseases and offers most sensitive and non-invasive way of Imaging. The sophisticated tool helps clinician to understand the cause of patient's particular health issue. RF Surface coils are used in MRI for better signal reception as they are more sensitive to signal close to the coil, thus detecting signals from organ of interest more efficiently. Hence attempts are made in order to improve the performance of the coil with respect to its signal to noise ratio, penetration depth, Specific Absorption Rate, etc. In this paper, we have designed, simulated and fabricated two designs of MRI surface coil for 1.5 Tesla scanner. A balun is designed to feed the unbalanced coaxial signal to a balanced coil. Significant improvement in the Q factor and reduction of the bandwidth was observed in Design B which improves SNR of the coil as compared to traditional surface coil Design A. Simulation and experimental result have been compared to validate the proposed design.","PeriodicalId":368544,"journal":{"name":"2015 Fifth International Conference on Advances in Computing and Communications (ICACC)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122888606","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}
The reliability of wave prediction is a crucial issue in coastal, harbor and ocean engineering. Support vector machine (SVM) is an appropriate and suitable method for significant wave height (Hs) prediction due to its best versatility, robustness, and effectiveness. In this present work, only significant wave height (Hs) of previous time steps were used as predictors during the period 01-01-2004 to 01-04-2004. The data used is processed significant wave height (Hs) of the station SW4(Latitude 12056'31" and longitude 74043'58") located near west coast of India.70% of the data used for calibration of model parameters and remaining 30% data used for validation using various input combinations. The performance of both the RBF and PUK models is assessed using different statistical indices. (E.g. CC (RBF -- SVR) = 0.82, CC (PUK-SVR) = 0.93, MAE (RBF -- SVR) = 0.04, MAE (PUK-SVR) =0.04 RMSE (RBF-SVR) =0.06, RMSE (PUK-SVR) =0.05. The results show that SVM can be successfully used for prediction of Hs.
波浪预报的可靠性是海岸、港口和海洋工程中的一个关键问题。支持向量机(SVM)具有通用性、鲁棒性和有效性，是有效波高预测的一种合适的方法。在本研究中，仅使用01-01-2004至01-04-2004期间的前时间步长的显著波高(Hs)作为预测因子。使用的数据是位于印度西海岸附近的SW4站(纬度12056’31”，经度74043’58”)处理过的有效波高(Hs)，其中70%的数据用于模型参数的校准，其余30%的数据用于使用各种输入组合进行验证。采用不同的统计指标对RBF模型和PUK模型的性能进行了评价。(例:CC (RBF-SVR) = 0.82, CC (PUK-SVR) = 0.93, MAE (RBF-SVR) =0.04, MAE (PUK-SVR) =0.04, RMSE (RBF-SVR) =0.06, RMSE (PUK-SVR) =0.05。结果表明，支持向量机可以成功地用于Hs的预测。
{"title":"Forecasting of Significant Wave Height Using Support Vector Regression","authors":"Ajeesh K, Chandra Paresh, Deka","doi":"10.1109/ICACC.2015.109","DOIUrl":"https://doi.org/10.1109/ICACC.2015.109","url":null,"abstract":"The reliability of wave prediction is a crucial issue in coastal, harbor and ocean engineering. Support vector machine (SVM) is an appropriate and suitable method for significant wave height (Hs) prediction due to its best versatility, robustness, and effectiveness. In this present work, only significant wave height (Hs) of previous time steps were used as predictors during the period 01-01-2004 to 01-04-2004. The data used is processed significant wave height (Hs) of the station SW4(Latitude 12056'31\" and longitude 74043'58\") located near west coast of India.70% of the data used for calibration of model parameters and remaining 30% data used for validation using various input combinations. The performance of both the RBF and PUK models is assessed using different statistical indices. (E.g. CC (RBF -- SVR) = 0.82, CC (PUK-SVR) = 0.93, MAE (RBF -- SVR) = 0.04, MAE (PUK-SVR) =0.04 RMSE (RBF-SVR) =0.06, RMSE (PUK-SVR) =0.05. The results show that SVM can be successfully used for prediction of Hs.","PeriodicalId":368544,"journal":{"name":"2015 Fifth International Conference on Advances in Computing and Communications (ICACC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122926314","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}
Among the linear precoding techniques block diagonalization (BD) based schemes are well-known transmit strategies employed in the downlink of multiuser MIMO (MUMIMO) systems. Employing BD type precoding algorithms at the transmit side suppresses multi-user interference (MUI) by converting a MU-MIMO broadcast channel into multiple single-user MIMO (SU-MIMO) channels and then decomposing the SU-MIMO channels into multiple independent parallel sub-channels. Substantial work has been done in designing linear precoding algorithms. However, the use of these techniques in the implementation of WLAN standards is an open question. In this paper both the traditional as well as the recent techniques for precoding are investigated and schemes proposed for their implementation in the framework of 802.11ac WLAN standard.
{"title":"Implementation of Block Diagonalization Type Precoding Algorithms for IEEE 802.11ac Systems","authors":"Ishhanie Majumdar","doi":"10.1109/ICACC.2015.59","DOIUrl":"https://doi.org/10.1109/ICACC.2015.59","url":null,"abstract":"Among the linear precoding techniques block diagonalization (BD) based schemes are well-known transmit strategies employed in the downlink of multiuser MIMO (MUMIMO) systems. Employing BD type precoding algorithms at the transmit side suppresses multi-user interference (MUI) by converting a MU-MIMO broadcast channel into multiple single-user MIMO (SU-MIMO) channels and then decomposing the SU-MIMO channels into multiple independent parallel sub-channels. Substantial work has been done in designing linear precoding algorithms. However, the use of these techniques in the implementation of WLAN standards is an open question. In this paper both the traditional as well as the recent techniques for precoding are investigated and schemes proposed for their implementation in the framework of 802.11ac WLAN standard.","PeriodicalId":368544,"journal":{"name":"2015 Fifth International Conference on Advances in Computing and Communications (ICACC)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126886569","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 microstrip bandstop filter rejecting 3.7GHz frequency of AMD A4-6300 Dual-Core processor is presented. The proposed notch is obtained by introducing perturbations on an equilateral triangular resonator. The filter exhibits a notch of depth -26dB at 3.7 GHz, while the insertion loss is 0dB in the pass band. The effects of varying the parameters of the structure have been studied and an equivalent circuit model of the filter is developed. The proposed filter can be tuned to different notch frequencies, resulting in numerous applications in ubiquity networks in wireless communication.
{"title":"Triangular Patch Bandstop Filter for Wireless Communication Applications","authors":"M. Vikas, A. Harikrishnan, S. Mridula","doi":"10.1109/ICACC.2015.70","DOIUrl":"https://doi.org/10.1109/ICACC.2015.70","url":null,"abstract":"A microstrip bandstop filter rejecting 3.7GHz frequency of AMD A4-6300 Dual-Core processor is presented. The proposed notch is obtained by introducing perturbations on an equilateral triangular resonator. The filter exhibits a notch of depth -26dB at 3.7 GHz, while the insertion loss is 0dB in the pass band. The effects of varying the parameters of the structure have been studied and an equivalent circuit model of the filter is developed. The proposed filter can be tuned to different notch frequencies, resulting in numerous applications in ubiquity networks in wireless communication.","PeriodicalId":368544,"journal":{"name":"2015 Fifth International Conference on Advances in Computing and Communications (ICACC)","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123990141","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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