2012 International Conference on Communication Systems and Network Technologies最新文献

{"title":"Battling the Fear of Heights: Pros and Cons of the 'Personal Cloud'","authors":"S. Bhattacharyya, M. Sen, S. Agarwal","doi":"10.1109/CSNT.2012.159","DOIUrl":"https://doi.org/10.1109/CSNT.2012.159","url":null,"abstract":"The ever-evolving technological world is undergoing a paradigm shift. After the older generations of the mainframe, the PC, the client-server architectures and the web, the fifth generation of computing now ushers itself in. Cloud computing has become the buzzword of the day and is being hailed by many as the technology of tomorrow. But despite its wide popularity and partial implementation and adoption in many companies with an avalanche of gray literature available, the concept of 'cloud computing' remains considerably shroud amidst ambiguity and vagueness. Almost every other article on cloud computing seems to have its own conception of the cloud. The first half of this paper tries to analyze the reason behind this situation. The second and main part of this paper focuses on the extended concept of the 'personal cloud'. Cloud computing is, no doubt, an excellent paradigm for enterprise computing but this paper considers the other side of the equation -- personal computing. Personal cloud computing services on a commercial basis abound on the web but in this paper we consider in depth whether cloud computing is really all that compatible to personal computing, if at all.","PeriodicalId":174433,"journal":{"name":"2012 International Conference on Communication Systems and Network Technologies","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114323614","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":"High Speed Average Power CMOS Current Comparator","authors":"V. Thrivikramaru, R. K. Baghel","doi":"10.1109/CSNT.2012.163","DOIUrl":"https://doi.org/10.1109/CSNT.2012.163","url":null,"abstract":"This work proposes the new CMOS Current Comparator circuit suitable for High Speed and Marginal Power applications. Proposed circuit had been simulated in a proprietary 180 nm CMOS process, using Cadence Spectre Simulator and UMC models. Current comparator circuit had impressed with current pulses ranging from Milli-Amperes to Nano-Amperes and its Speed and Power consumption had been simulated and measured. When made a comparison with the earlier reported circuits, our circuit achieves Very High Speed of operation and acceptable power consumption. For Micron range input currents the power consumption of the newly proposed current comparator is very much lower than the other earlier proposed circuits.","PeriodicalId":174433,"journal":{"name":"2012 International Conference on Communication Systems and Network Technologies","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126313746","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":"Identification of the Sensitive Sensors in ADITYA Tokamk","authors":"S. Kapoor, R. Daniel, S. Dhatterwal","doi":"10.1109/CSNT.2012.93","DOIUrl":"https://doi.org/10.1109/CSNT.2012.93","url":null,"abstract":"Position and shape of plasma current channel is determined by magnetic measurements in tokamak, a fusion device. To avoid the direct contact of hot plasma with the surrounding vacuum vessel, the position of this plasma current channel is controlled in a millisecond time-scale by feedback control system. It is therefore important to ensure the reliability of the magnetic sensors used to determine position and shape parameters. The sensitivity of each probe to these parameters is estimated by designing a physical model based on a multi-layered feed forward artificial neural network. Input to this network is simulated magnetic signals and the outputs are the position and shape parameters. In this paper first the neural network is trained with simulated data and later the identification of the sensitive sensor is done.","PeriodicalId":174433,"journal":{"name":"2012 International Conference on Communication Systems and Network Technologies","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126378783","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":"Stacked Microstrip Patch Antenna: Gain and Bandwidth Improvement, Effect of Patch Rotation","authors":"R. Trivedi, V. Dwivedi","doi":"10.1109/CSNT.2012.19","DOIUrl":"https://doi.org/10.1109/CSNT.2012.19","url":null,"abstract":"A rectangular micro strip patch antenna has been investigated and its performance has been analyzed with the aid of An soft HFSS. An additional rectangular conductive plate of comparable dimensions was placed above the patch in order to enhance the bandwidth. The package was used to analyse the effect of the top patch, in particular the variation of VSWR with two parameters, namely the distance between the two patches and the size of the upper patch. A bandwidth of 527 MHz for VSWR<;2 has been achieved for stacked rectangular patch designed to operate in the C-band.","PeriodicalId":174433,"journal":{"name":"2012 International Conference on Communication Systems and Network Technologies","volume":"184 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132480029","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":"Artificial Bandwidth Extension of Speech & Its Applications in Wireless Communication Systems: A Review","authors":"P. Gajjar, N. Bhatt, Y. Kosta","doi":"10.1109/CSNT.2012.127","DOIUrl":"https://doi.org/10.1109/CSNT.2012.127","url":null,"abstract":"In the recent scenario of wired and wireless communication systems, amongst many reasons for the overall degradation of recovered speech quality at receiver, one of the major reasons to be considered is utilization of Narrow Band (NB) end devices and NB transmission medium supporting bandwidth of 300 Hz-3400Hz. The inherent drawback of such NB speech signal is it sounds muffled and thin because of absence of High Band (HB) spectral components. With state of the art development of communication technologies and with increased availability of end terminals capable of transmitting and receiving Wide Band (WB) signals (having bandwidth from 50 Hz to 7000 Hz), end users prefer to listen to WB speech. In order to offer a fully WB communication over wired and wireless media, both end devices and network need to be made WB compatible. A long transition period has been elapsed for upgrading existing NB systems (both end terminals and network) to fully WB compatible systems. In-between new methods have been developed to artificially extend the bandwidth of NB telephonic speech at receiver for improving the quality of recovered speech. A major task of Artificial Bandwidth Extension (ABE) is to reconstruct missing WB spectral components at receiver with the use of available NB speech. This paper discusses motivation for developing ABE algorithm along with exhaustive comparative studies of implementing it with various approaches. Issues and limitations related to real time implementation of ABE algorithm are also addressed. Alternative approaches like usage of ABE with side information transmission along with coded NB speech are also demonstrated. Main objective of ABE with side information is to extract WB spectral components from WB input speech and to embed these derived spectral components into coded NB speech signal and finally transmit them onto a NB channel. Reverse procedure can be carried out at receiver to artificially produce WB speech. Here, it is to be noted that transmission channel is NB whereas end terminals are made WB compatible so this method provides alternative solution to coexisting state of the art WB coders (which require WB channels) while offering comparable speech quality and giving natural sounding in terms of intelligibility and naturalness.","PeriodicalId":174433,"journal":{"name":"2012 International Conference on Communication Systems and Network Technologies","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130196341","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":"Use of Information and Communication Technology (ICT) Tools by Rural Farmers in Ratnagiri District of Maharastra, India","authors":"L. Armstrong, N. Gandhi, K. Lanjekar","doi":"10.1109/CSNT.2012.202","DOIUrl":"https://doi.org/10.1109/CSNT.2012.202","url":null,"abstract":"This paper discusses the impact of information and communication technology (ICT) on the access for rural farmers from the Ratnagiri district to agricultural information. A study was undertaken in which more than one hundred randomly selected farmers completed a structured questionnaire to gather information at household level of the use of ICT. Interviews were also conducted with key stakeholders, service providers and government officials. Findings from the study indicated that farmers were most interested in obtaining market price information. Examination of the relationship between use of ICT tools and co factors such as age, qualifications and income indicated that only income was a determining factor of using ICT tools.","PeriodicalId":174433,"journal":{"name":"2012 International Conference on Communication Systems and Network Technologies","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131728682","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":"Low Complex Crypto Based Channel Coding","authors":"S. Nandan, P. Deepthi, C. Stuart","doi":"10.1109/CSNT.2012.186","DOIUrl":"https://doi.org/10.1109/CSNT.2012.186","url":null,"abstract":"A novel method to combine encryption and channel coding in such a way as to get increased security without any additional complexity is presented in this paper. A secure communication system usually consists of an encryption block followed by the channel coder. The encryption block here is a Shrinking generator which is a Linear Feedback Shift Register (LFSR) based stream cipher system. The channel coding technique used is Turbo codes or Low Density Parity Check Codes (LDPC) that performs very well and provides results near Shannon's Limit. Controlled randomness using Pseudo Random Bit Sequence (PRBS) generator is incorporated during encoding of these codes to provide additional level of security in the system without any additional complexity. To achieve optimum decoding, soft decision decoding algorithms are used rather than hard decisions. Bit Error Rate (BER) performance of the proposed channel coders with keyed randomness is well analyzed for intended and un-intended users. Security of the system is analyzed by mounting Improved Linear Consistency Attack and the results show that a significant increase in security is achieved in a stream cipher based secure communication system without any additional increase in complexity by introducing security in channel coding.","PeriodicalId":174433,"journal":{"name":"2012 International Conference on Communication Systems and Network Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130975811","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":"Improvement and Application of Grey Modeling Method in Decreasing Sequence","authors":"Q. He, Guiming Chen, Xiaohu Chen, Chunjiang Yao, Qing Yang","doi":"10.1109/CSNT.2012.72","DOIUrl":"https://doi.org/10.1109/CSNT.2012.72","url":null,"abstract":"The comparison principle of smooth degree about monotone decreasing sequence is put forward. Improved method of smooth degree about decreasing sequence is given, and proved in theory. The modeling mechanism of GM (1, 1) grey model is analyzed. The forecasting precision of grey model is improved by combining the methods of opposite direction accumulating algorithm and improved smooth degree of decreasing sequence. The validity of the method is proved by application example.","PeriodicalId":174433,"journal":{"name":"2012 International Conference on Communication Systems and Network Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131280219","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":"Bandwidth Enhancement of W Slot Microstrip Antenna Using Stacked Configuration","authors":"Z. Ali, V. K. Singh, A. K. Singh, S. Ayub","doi":"10.1109/CSNT.2012.16","DOIUrl":"https://doi.org/10.1109/CSNT.2012.16","url":null,"abstract":"In this paper, bandwidth of microstrip antenna is increased by introducing a slot of W shape and using stacked configuration. The proposed W slot MSA is suitable for high speed WLANs applications. By using different approach of bandwidth enhancement such as stacked configuration, cutting slot and changing the position of the coaxial probe bandwidth equal to 25.78% is achieved. The antenna is fed by coaxial probe feeding technique. The designed antenna operates in the frequency range of 4.381GHz to 5.668GHz covering the WLAN frequency band of 5.15 GHz - 5.35 GHz. The antenna is designed using air as a dielectric substrate between the two layers and simulated on the Zeland IE3D software.","PeriodicalId":174433,"journal":{"name":"2012 International Conference on Communication Systems and Network Technologies","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131313702","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":"Optimal Design of Single Fault Tolerant Candidate Set for a Communication Network","authors":"A. Q. Ansari, K. D. Gupta, M. Dabas","doi":"10.1109/CSNT.2012.133","DOIUrl":"https://doi.org/10.1109/CSNT.2012.133","url":null,"abstract":"The cost and reliability of a network are very much affected by its topology. Moreover, the network parameters like path length and link load are also dependent on the topology used for a network. These parameters are vital for any network. Hence constructing a set of topology candidates prior to evaluation is crucial. However, constructing candidate set is a time consuming task and this time is greatly increased as the size of the network grows. Hence, computational time of an algorithm also plays a critical role in selection of the algorithm. In this paper an approach is proposed to construct candidate set for a communication network so that it can survive at least one link failure and the computational time is less than existing algorithms.","PeriodicalId":174433,"journal":{"name":"2012 International Conference on Communication Systems and Network Technologies","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124187953","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}