Pub Date : 2009-12-01DOI: 10.1109/ICCIT.2009.5407260
Md. Ashik Khan, Md Liakot Ali
Now-a-days mobile is part of our daily life. So mobile browsing is becoming popular issue day by day. Today most web pages are written in HTML. Mobile Browsers are optimized for displaying web content. It has low-memory capacity and low-bandwidth. So, mobile browser cannot render all html documents in its limited area. Specific information of particular web page needs to visualize for mobile users. So the effective conversion from HTML to WML becomes a key issue for reducing tedious work. In this technique, not only convert static content, but also some sort of dynamic content will be converted and it improved the conversion effectively in speed and accurate rate, whilst presented the useful information conveniently to the users.
{"title":"Development of a translation model from HTML to WML using component based information extraction technique","authors":"Md. Ashik Khan, Md Liakot Ali","doi":"10.1109/ICCIT.2009.5407260","DOIUrl":"https://doi.org/10.1109/ICCIT.2009.5407260","url":null,"abstract":"Now-a-days mobile is part of our daily life. So mobile browsing is becoming popular issue day by day. Today most web pages are written in HTML. Mobile Browsers are optimized for displaying web content. It has low-memory capacity and low-bandwidth. So, mobile browser cannot render all html documents in its limited area. Specific information of particular web page needs to visualize for mobile users. So the effective conversion from HTML to WML becomes a key issue for reducing tedious work. In this technique, not only convert static content, but also some sort of dynamic content will be converted and it improved the conversion effectively in speed and accurate rate, whilst presented the useful information conveniently to the users.","PeriodicalId":443258,"journal":{"name":"2009 12th International Conference on Computers and Information Technology","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115284791","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 : 2009-12-01DOI: 10.1109/ICCIT.2009.5407129
Md. Rashedul Islam, M. S. Azam, Saleh Ahmed
This paper presents a speech-based speaker identification system and an efficient approach for selection of acoustic parameters closely related to the vocal track shape of the speaker. Speech endpoint detection algorithm is developed in order to discard the room noise and non-speech signal to achieve high accuracy of the system. Windowing and Fast Fourier Transform (FFT) are used to determine the spectrum of the speech signal and PCA has been used to extract feature of speech of individual speaker. Eigenface algorithm has been used here as a classification and recognation tool. Eigenspace of individual speaker is generated by the feature of the speech signal. The experimental results show the noticeable performance of the proposed system.
{"title":"Speaker identification system using PCA & eigenface","authors":"Md. Rashedul Islam, M. S. Azam, Saleh Ahmed","doi":"10.1109/ICCIT.2009.5407129","DOIUrl":"https://doi.org/10.1109/ICCIT.2009.5407129","url":null,"abstract":"This paper presents a speech-based speaker identification system and an efficient approach for selection of acoustic parameters closely related to the vocal track shape of the speaker. Speech endpoint detection algorithm is developed in order to discard the room noise and non-speech signal to achieve high accuracy of the system. Windowing and Fast Fourier Transform (FFT) are used to determine the spectrum of the speech signal and PCA has been used to extract feature of speech of individual speaker. Eigenface algorithm has been used here as a classification and recognation tool. Eigenspace of individual speaker is generated by the feature of the speech signal. The experimental results show the noticeable performance of the proposed system.","PeriodicalId":443258,"journal":{"name":"2009 12th International Conference on Computers and Information Technology","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115863079","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 : 2009-12-01DOI: 10.1109/ICCIT.2009.5407171
Ramin Tajallipour, D. Teng, S. Ko, K. Wahid
The paper presents a new and fast algorithm to efficiently compute radix-10 logarithm of a decimal number. The algorithm uses 32-bit floating-point arithmetic, and is based on a digit-by-digit iterative computation that does not require look-up tables, curve fitting, decimal-binary conversion, or division operations; the number of iterations depends on the user defined precision. The algorithm produces error-free (infinite precision) results up to 7 decimal digits. A numerical example is shown for the purpose of illustration. The accuracy is analyzed for several decimal digits showing compliance with the IEEE 754-2008 standard. When implemented on to the Xilinx VirtexII FPGA, the architecture costs only 1,053 logic cells, runs at a maximum frequency of 44 MHz, and consumes 79 mW of power.
{"title":"On the fast computation of decimal logarithm","authors":"Ramin Tajallipour, D. Teng, S. Ko, K. Wahid","doi":"10.1109/ICCIT.2009.5407171","DOIUrl":"https://doi.org/10.1109/ICCIT.2009.5407171","url":null,"abstract":"The paper presents a new and fast algorithm to efficiently compute radix-10 logarithm of a decimal number. The algorithm uses 32-bit floating-point arithmetic, and is based on a digit-by-digit iterative computation that does not require look-up tables, curve fitting, decimal-binary conversion, or division operations; the number of iterations depends on the user defined precision. The algorithm produces error-free (infinite precision) results up to 7 decimal digits. A numerical example is shown for the purpose of illustration. The accuracy is analyzed for several decimal digits showing compliance with the IEEE 754-2008 standard. When implemented on to the Xilinx VirtexII FPGA, the architecture costs only 1,053 logic cells, runs at a maximum frequency of 44 MHz, and consumes 79 mW of power.","PeriodicalId":443258,"journal":{"name":"2009 12th International Conference on Computers and Information Technology","volume":"609 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132469823","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 : 2009-12-01DOI: 10.1109/ICCIT.2009.5407264
Md. Selim Hossain, Md. Jahangir Hossain
This paper presents a novel speed control scheme of an Interior Permanent Magnet Synchronous Motor (IPMSM) using Fuzzy logic controller considering variable direct and quadrature axis inductances. The Fuzzy logic controller (FLC) has been designed on the basis of indirect vector control scheme of the IPMSM drive. The complete vector control scheme of the IPMSM drive incorporating the FLC is simulated for a IPMSM using Matlab/Simulink. The performances of the proposed FLC based IPMSM drive are investigated and compared to those obtained from the maximum torque per ampere (MTPA) based drive at various dynamic operating conditions, such as, certain change in command speed, step change in load, etc. The comparative results show that the FLC is more robust and, hence, found to be a suitable replacement of the MTPA control for the high performance industrial drive applications.
{"title":"Performance analysis of a novel fuzzy logic and MTPA based speed control for IPMSM drive with variable d- and q-axis inductances","authors":"Md. Selim Hossain, Md. Jahangir Hossain","doi":"10.1109/ICCIT.2009.5407264","DOIUrl":"https://doi.org/10.1109/ICCIT.2009.5407264","url":null,"abstract":"This paper presents a novel speed control scheme of an Interior Permanent Magnet Synchronous Motor (IPMSM) using Fuzzy logic controller considering variable direct and quadrature axis inductances. The Fuzzy logic controller (FLC) has been designed on the basis of indirect vector control scheme of the IPMSM drive. The complete vector control scheme of the IPMSM drive incorporating the FLC is simulated for a IPMSM using Matlab/Simulink. The performances of the proposed FLC based IPMSM drive are investigated and compared to those obtained from the maximum torque per ampere (MTPA) based drive at various dynamic operating conditions, such as, certain change in command speed, step change in load, etc. The comparative results show that the FLC is more robust and, hence, found to be a suitable replacement of the MTPA control for the high performance industrial drive applications.","PeriodicalId":443258,"journal":{"name":"2009 12th International Conference on Computers and Information Technology","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131560585","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 : 2009-12-01DOI: 10.1109/ICCIT.2009.5407139
I. Jahangir, D. Hasan, Nahian Alam Siddique, Shajid Islam, Mehedi Hasan
Using a novel quaternary algebra, several sequential circuits are designed. The quaternary logic scheme used here is obtained by extending Boolean algebra into quaternary domain. A set of operators capable of handling both coupled-binary and ordinary inputs are used to design the sequential circuit elements such as latches, flip-flops, registers and counters. Sufficient conditions for stable operation of the sequential blocks are derived mathematically and demonstrated graphically using simulated timing diagrams.
{"title":"Design of quaternary sequential circuits using a newly proposed quaternary algebra","authors":"I. Jahangir, D. Hasan, Nahian Alam Siddique, Shajid Islam, Mehedi Hasan","doi":"10.1109/ICCIT.2009.5407139","DOIUrl":"https://doi.org/10.1109/ICCIT.2009.5407139","url":null,"abstract":"Using a novel quaternary algebra, several sequential circuits are designed. The quaternary logic scheme used here is obtained by extending Boolean algebra into quaternary domain. A set of operators capable of handling both coupled-binary and ordinary inputs are used to design the sequential circuit elements such as latches, flip-flops, registers and counters. Sufficient conditions for stable operation of the sequential blocks are derived mathematically and demonstrated graphically using simulated timing diagrams.","PeriodicalId":443258,"journal":{"name":"2009 12th International Conference on Computers and Information Technology","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130912447","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 : 2009-12-01DOI: 10.1109/ICCIT.2009.5407155
K. Banerjee, A. Numan-Al-Mobin, K. M. Morshed
A millimeter band microstrip patch antenna was developed to achieve a bandwidth of 2GHz from 58.995GHz to 60.995GHz with linear polarization capability. In this paper the key configuration of the antenna consists of two loops having an opening at opposite side. The bandwidth of the antenna is enhanced by taking the advantage of this double loop arrangement and the mutual coupling between the inner and outer loops. In this paper, properties of the proposed two loop antenna are investigated in the frequency range from 58.995 GHz to 60.995 GHz which is efficient for satellite millimeter band applications.
{"title":"A compact loop type antenna for millimeter band applications","authors":"K. Banerjee, A. Numan-Al-Mobin, K. M. Morshed","doi":"10.1109/ICCIT.2009.5407155","DOIUrl":"https://doi.org/10.1109/ICCIT.2009.5407155","url":null,"abstract":"A millimeter band microstrip patch antenna was developed to achieve a bandwidth of 2GHz from 58.995GHz to 60.995GHz with linear polarization capability. In this paper the key configuration of the antenna consists of two loops having an opening at opposite side. The bandwidth of the antenna is enhanced by taking the advantage of this double loop arrangement and the mutual coupling between the inner and outer loops. In this paper, properties of the proposed two loop antenna are investigated in the frequency range from 58.995 GHz to 60.995 GHz which is efficient for satellite millimeter band applications.","PeriodicalId":443258,"journal":{"name":"2009 12th International Conference on Computers and Information Technology","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123168676","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 : 2009-12-01DOI: 10.1109/ICCIT.2009.5407158
G. Ali, R. Shahin, Nushrika Mowna
This paper is a research work to find out an efficient algorithm for slots assignments of multiple access points (APs) of IEEE 802.11 wireless LANs in a framework for seeking an approach which balances between quality of services (QoS) and fairness while achieving maximum network throughput. The explosive growth of wireless systems coupled with the extensive use of laptop and palmtop computers indicate bright future for wireless networks both as standalone systems and as part of large networking infrastructure. IEEE 802.11 wireless LAN has been improving in terms of data rates, radio services, security etc. ever since. Now-a-days WLAN is an essential part for providing both real time and non-real time services to a massive mobile users. But there are still lacking for WLAN to provide both QoS guarantee and fairness which makes it inappropriate for real time applications such as voice and video services. We analyze for a new framework which based on centralized coordination of APs, is a complementary to the emerging 802.11e standard for QoS and guarantee to overcome the hidden node and overlapping cell problems. We simulate three algorithms for slots assignment of multiple APs during contention-free period (CFP) of IEEE 802.11 point coordination function (PCF) medium access control (MAC) mode for ensuring the QoS, inter-AP fairness with maximizing the network throughput.
{"title":"Fair slots assignment mechanisms of IEEE 802.11 networks for multiple access points","authors":"G. Ali, R. Shahin, Nushrika Mowna","doi":"10.1109/ICCIT.2009.5407158","DOIUrl":"https://doi.org/10.1109/ICCIT.2009.5407158","url":null,"abstract":"This paper is a research work to find out an efficient algorithm for slots assignments of multiple access points (APs) of IEEE 802.11 wireless LANs in a framework for seeking an approach which balances between quality of services (QoS) and fairness while achieving maximum network throughput. The explosive growth of wireless systems coupled with the extensive use of laptop and palmtop computers indicate bright future for wireless networks both as standalone systems and as part of large networking infrastructure. IEEE 802.11 wireless LAN has been improving in terms of data rates, radio services, security etc. ever since. Now-a-days WLAN is an essential part for providing both real time and non-real time services to a massive mobile users. But there are still lacking for WLAN to provide both QoS guarantee and fairness which makes it inappropriate for real time applications such as voice and video services. We analyze for a new framework which based on centralized coordination of APs, is a complementary to the emerging 802.11e standard for QoS and guarantee to overcome the hidden node and overlapping cell problems. We simulate three algorithms for slots assignment of multiple APs during contention-free period (CFP) of IEEE 802.11 point coordination function (PCF) medium access control (MAC) mode for ensuring the QoS, inter-AP fairness with maximizing the network throughput.","PeriodicalId":443258,"journal":{"name":"2009 12th International Conference on Computers and Information Technology","volume":"141-142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124034990","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 : 2009-12-01DOI: 10.1109/ICCIT.2009.5407138
M. Islam, Abdullah-Al Baki, Md. Shahidul Haque Palash
Based on some simple arithmetic operation, an efficient lossless image compression technique is proposed. We use repeat reduction and arithmetic coding to improve the results of compression. We get better results than Log-Exp based compression and Arithmetic modulo based compression. From the experimental results, it can be seen that the performance of proposed method is better for all standard images. The complexity of our proposed method with respect to compression ratio has also been analyzed. The proposed method is most applicable for those images where lossy compression is to be avoided.
{"title":"A new image compression scheme using repeat reduction and arithmetic coding","authors":"M. Islam, Abdullah-Al Baki, Md. Shahidul Haque Palash","doi":"10.1109/ICCIT.2009.5407138","DOIUrl":"https://doi.org/10.1109/ICCIT.2009.5407138","url":null,"abstract":"Based on some simple arithmetic operation, an efficient lossless image compression technique is proposed. We use repeat reduction and arithmetic coding to improve the results of compression. We get better results than Log-Exp based compression and Arithmetic modulo based compression. From the experimental results, it can be seen that the performance of proposed method is better for all standard images. The complexity of our proposed method with respect to compression ratio has also been analyzed. The proposed method is most applicable for those images where lossy compression is to be avoided.","PeriodicalId":443258,"journal":{"name":"2009 12th International Conference on Computers and Information Technology","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121897582","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 : 2009-12-01DOI: 10.1109/ICCIT.2009.5407157
A. Chowdhury, M. Gregory
It is a universally stated design requirement that next generation mobile systems will be compatible and inter-operable with IPv6 and with various access technologies such as 802.11x. The current growth of WLANs worldwide has yielded a demand to integrate with existing 3G mobile technologies. Interworking incorporates all of the best features of an individual network into a single integrated system thus providing ubiquitous data services with high data rates in WLAN hotspots. The attempt to build hybrid networks has been linked with many technical challenges such as seamless vertical handovers across WLAN/3G radio technologies, security, common authentication, unified accounting & billing, etc. This paper evaluates the performance of two 3G/WLAN integration schemes: Tight and Loose Coupling. Mobile IP is used as a mobility management scheme and EAP-AKA for common authentication.
{"title":"Performance evaluation of heterogeneous network for next generation mobile","authors":"A. Chowdhury, M. Gregory","doi":"10.1109/ICCIT.2009.5407157","DOIUrl":"https://doi.org/10.1109/ICCIT.2009.5407157","url":null,"abstract":"It is a universally stated design requirement that next generation mobile systems will be compatible and inter-operable with IPv6 and with various access technologies such as 802.11x. The current growth of WLANs worldwide has yielded a demand to integrate with existing 3G mobile technologies. Interworking incorporates all of the best features of an individual network into a single integrated system thus providing ubiquitous data services with high data rates in WLAN hotspots. The attempt to build hybrid networks has been linked with many technical challenges such as seamless vertical handovers across WLAN/3G radio technologies, security, common authentication, unified accounting & billing, etc. This paper evaluates the performance of two 3G/WLAN integration schemes: Tight and Loose Coupling. Mobile IP is used as a mobility management scheme and EAP-AKA for common authentication.","PeriodicalId":443258,"journal":{"name":"2009 12th International Conference on Computers and Information Technology","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115586126","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 : 2009-12-01DOI: 10.1109/ICCIT.2009.5407147
Md Iftakharul Islam, M. Akbar
This paper presents two heuristic algorithms of the MMKP (a variant of 0–1 knapsack problem) for cluster computing. We present an architecture of a cluster, such that algorithm requires small message passing. The algorithms divide the problem among computational nodes. Each node solves its sub problem using a sequential heuristic. This naïve divide and conquer approach cannot achieve good revenue. The revenue is the value achieved by the solution of MMKP. To improve the revenue, it accumulates the unused resources from every node, and assigns to the node, which gives maximum revenue over all nodes. This is the residue exploitation (RE) strategy. The solution quality can be improved by a novel resource-division policy rather than equal division. The policy divides the resource among all nodes such that total revenue increases. A sequential heuristic calculates the solution incrementally for different amounts of resource capacity, and the best combination is taken as the solution. This is the resource adjustment (RA) strategy. We experiment the algorithm using MPI (Message Passing Interface). The proposed algorithms show encouraging results.
{"title":"Heuristic algorithm of the multiple-choice multidimensional knapsack problem (MMKP) for cluster computing","authors":"Md Iftakharul Islam, M. Akbar","doi":"10.1109/ICCIT.2009.5407147","DOIUrl":"https://doi.org/10.1109/ICCIT.2009.5407147","url":null,"abstract":"This paper presents two heuristic algorithms of the MMKP (a variant of 0–1 knapsack problem) for cluster computing. We present an architecture of a cluster, such that algorithm requires small message passing. The algorithms divide the problem among computational nodes. Each node solves its sub problem using a sequential heuristic. This naïve divide and conquer approach cannot achieve good revenue. The revenue is the value achieved by the solution of MMKP. To improve the revenue, it accumulates the unused resources from every node, and assigns to the node, which gives maximum revenue over all nodes. This is the residue exploitation (RE) strategy. The solution quality can be improved by a novel resource-division policy rather than equal division. The policy divides the resource among all nodes such that total revenue increases. A sequential heuristic calculates the solution incrementally for different amounts of resource capacity, and the best combination is taken as the solution. This is the resource adjustment (RA) strategy. We experiment the algorithm using MPI (Message Passing Interface). The proposed algorithms show encouraging results.","PeriodicalId":443258,"journal":{"name":"2009 12th International Conference on Computers and Information Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115352196","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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