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2013 National Conference on Communications (NCC)最新文献

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Information theoretic self-management of Wireless Sensor Networks 无线传感器网络的信息论自管理
2013 National Conference on Communications (NCC) Pub Date : 2013-03-28 DOI: 10.1109/NCC.2013.6488030
S. Das, S. Misra
{"title":"Information theoretic self-management of Wireless Sensor Networks","authors":"S. Das, S. Misra","doi":"10.1109/NCC.2013.6488030","DOIUrl":"https://doi.org/10.1109/NCC.2013.6488030","url":null,"abstract":"A Wireless Sensor Network (WSN) is deployed primarily with the interest of collecting information about an area of interest or some events of interest occurring in that area. A WSN transmits the sensed information to the end users in the form of data-packets. The number of packets is directly proportional to the transmission rate of the nodes in the WSN. In this paper, a distributed self-management scheme for WSNs, named as Information Theoretic Self-Management (InTSeM), for WSNs, is proposed. The scheme helps the nodes in the network to adapt themselves with the changes in their environment and to select an appropriate transmission rate using an information theoretic metric called Symmetric Kullback-Leibler Distance. This dynamic selection of transmission rate conserves the energy of nodes while maintaining the quality of data. Extensive simulation results show that InTSeM performs better than other schemes with fixed transmission rate.","PeriodicalId":202526,"journal":{"name":"2013 National Conference on Communications (NCC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131514648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Optimal design of timer-based, distributed selection with unknown number of nodes 节点数未知、基于时间的分布式选择优化设计
2013 National Conference on Communications (NCC) Pub Date : 2013-03-28 DOI: 10.1109/NCC.2013.6487898
Rajat Talak, N. Mehta
{"title":"Optimal design of timer-based, distributed selection with unknown number of nodes","authors":"Rajat Talak, N. Mehta","doi":"10.1109/NCC.2013.6487898","DOIUrl":"https://doi.org/10.1109/NCC.2013.6487898","url":null,"abstract":"The timer-based selection scheme is a popular, simple, and distributed scheme that is used to select the best node from a set of available nodes. In it, each node sets a timer as a function of a local preference number called a metric, and transmits a packet when its timer expires. The scheme ensures that the timer of the best node, which has the highest metric, expires first. However, it fails to select the best node if another node transmits a packet within Δ s of the transmission by the best node. We derive the optimal timer mapping that maximizes the average success probability for the practical scenario in which the number of nodes in the system is unknown but only its probability distribution is known. We show that it has a special discrete structure, and present a recursive characterization to determine it. We benchmark its performance with ad hoc approaches proposed in the literature, and show that it delivers significant gains. New insights about the optimality of some ad hoc approaches are also developed.","PeriodicalId":202526,"journal":{"name":"2013 National Conference on Communications (NCC)","volume":"275 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134162472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Broadband gap-coupled slot cut rectangular microstrip antennas 宽带间隙耦合槽切矩形微带天线
2013 National Conference on Communications (NCC) Pub Date : 2013-03-28 DOI: 10.1109/NCC.2013.6487973
A. Deshmukh, A. Joshi, T. Tirodkar, K. Ray
{"title":"Broadband gap-coupled slot cut rectangular microstrip antennas","authors":"A. Deshmukh, A. Joshi, T. Tirodkar, K. Ray","doi":"10.1109/NCC.2013.6487973","DOIUrl":"https://doi.org/10.1109/NCC.2013.6487973","url":null,"abstract":"The broadband microstrip antenna is more commonly realized by using multi-resonator gap-coupled technique or by cutting the slot inside the patch. The gap-coupled configuration increases the antenna size whereas the slot cut designs maintains the low profile nature of the antenna and also adds to the bandwidth. The slot is said to introduce a mode near the fundamental mode resonance frequency of the patch and increases the bandwidth. In this paper, broadband proximity fed E-shaped microstrip antenna is discussed. The gap-coupled configuration of E-shaped antenna with rectangular microstrip antennas is proposed. This gap-coupled configuration gives a bandwidth of 450 MHz at center frequency of around 1000 MHz with broadside radiation pattern and gain of more than 7 dBi over the bandwidth. Further gap-coupled configuration of pair of rectangular slot cut rectangular patches with E-shaped antenna is proposed. This configuration yields a bandwidth of more than 550 MHz with broadside radiation pattern and peak gain very close to 9.5 dBi.","PeriodicalId":202526,"journal":{"name":"2013 National Conference on Communications (NCC)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133015567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Comprehensive multimedia encryption system generalization and comparison 综合多媒体加密系统的概括与比较
2013 National Conference on Communications (NCC) Pub Date : 2013-03-28 DOI: 10.1109/NCC.2013.6488041
G. Ramani, Niraj Kumar, B. K. Das
{"title":"Comprehensive multimedia encryption system generalization and comparison","authors":"G. Ramani, Niraj Kumar, B. K. Das","doi":"10.1109/NCC.2013.6488041","DOIUrl":"https://doi.org/10.1109/NCC.2013.6488041","url":null,"abstract":"Unauthorized interception in transmission of multimedia data is very substantial, whether it is intentional or unintentional. With the help of Encryption system, a safe and secured multimedia link can be obtained. In this paper, the popular symmetric encryption algorithms such as DES, 3DES and AES have been applied on the multimedia to avoid any information breach while these data is placed on an open communication network. Concurrently, to counter the time limitation for extensive input data with complete content cipher-ability, a novel symmetric encryption algorithm is developed which is subsequently implemented to cipher the multimedia content. In this paper, implementation and experimental analysis of all the above mentioned algorithms has been realized for different multimedia data. A comparative analysis among them has been performed and represented in a tabular form. Further, the systematic conclusion has been stated based on the results.","PeriodicalId":202526,"journal":{"name":"2013 National Conference on Communications (NCC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131110283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Traffic patterns affecting disruption in vehicular communication 影响车辆通讯中断的交通模式
2013 National Conference on Communications (NCC) Pub Date : 2013-03-28 DOI: 10.1109/NCC.2013.6488045
S. F. Hasan, Nazmul H. Siddique, S. Chakraborty
{"title":"Traffic patterns affecting disruption in vehicular communication","authors":"S. F. Hasan, Nazmul H. Siddique, S. Chakraborty","doi":"10.1109/NCC.2013.6488045","DOIUrl":"https://doi.org/10.1109/NCC.2013.6488045","url":null,"abstract":"The objective of this paper is to investigate whether the vehicular traffic patterns affect the undesired ‘disruption’ in WLAN-based vehicular communication. Stochastic models are first developed to describe connectivity patterns in normal and dense traffic conditions. Hidden Markov model techniques are then used to measure the variation in estimated disruption with changing traffic conditions.","PeriodicalId":202526,"journal":{"name":"2013 National Conference on Communications (NCC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132330244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
UWB CMOS transmitters for UWB communications 用于超宽带通信的超宽带CMOS发射机
2013 National Conference on Communications (NCC) Pub Date : 2013-03-28 DOI: 10.1109/NCC.2013.6487919
R. Xu, Y. Jin, M. Miao, C. Nguyen
{"title":"UWB CMOS transmitters for UWB communications","authors":"R. Xu, Y. Jin, M. Miao, C. Nguyen","doi":"10.1109/NCC.2013.6487919","DOIUrl":"https://doi.org/10.1109/NCC.2013.6487919","url":null,"abstract":"Development of UWB CMOS transmitters using carrier and impulse techniques is presented. The carrier transmitter designed using a 0.18-µm CMOS process adopts a double-stage switching to enhance RF-power efficiency and reduce dc-power consumption and circuit complexity. Measurement results show that the generated UWB signal has variable 10-dB signal bandwidths from 0.5 to 4 GHz and tunable central frequency covering the entire UWB frequency range of 3.1 to 10.6 GHz. The impulse transmitter designed using a 0.25-µm CMOS process can generate and transmit both monocycle pulses from 140 to 350 ps and impulses from 100 to 300 ps.","PeriodicalId":202526,"journal":{"name":"2013 National Conference on Communications (NCC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130554060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A cepstrum based approach for identifying tonic pitch in Indian classical music 基于倒谱的印度古典音乐主音音高识别方法
2013 National Conference on Communications (NCC) Pub Date : 2013-03-28 DOI: 10.1109/NCC.2013.6487983
Ashwin Bellur, H. Murthy
{"title":"A cepstrum based approach for identifying tonic pitch in Indian classical music","authors":"Ashwin Bellur, H. Murthy","doi":"10.1109/NCC.2013.6487983","DOIUrl":"https://doi.org/10.1109/NCC.2013.6487983","url":null,"abstract":"This work addresses the task of tonic pitch identification in Indian classical music. The drone or the tambura establishes the tonic in Indian classical music. A cepstrum based pitch extraction technique is proposed to identify the tuning of the tambura. We show that by identifying the musical note Sadja in the lower octave of a performance, the pitch of the tonic can be identified accurately. We also show that by estimating pitch of low energy frames, tonic can be identified with greater speed and higher accuracy. In order to further enhance the speed and also illustrate the ubiquitous nature of the tonic, a Non-Negative Matrix Factorization (NMF) technique based method is developed to identify tonic. The proposed methods are validated by testing on a large varied dataset and accuracies close to 100% is reported.","PeriodicalId":202526,"journal":{"name":"2013 National Conference on Communications (NCC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115686735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Sparsity based segmentation in hybrid color space 基于稀疏度的混合色彩空间分割
2013 National Conference on Communications (NCC) Pub Date : 2013-03-28 DOI: 10.1109/NCC.2013.6487937
Raju Ranjan, Rajesh Bhatt, Sumana Gupta, K. Venkatesh
{"title":"Sparsity based segmentation in hybrid color space","authors":"Raju Ranjan, Rajesh Bhatt, Sumana Gupta, K. Venkatesh","doi":"10.1109/NCC.2013.6487937","DOIUrl":"https://doi.org/10.1109/NCC.2013.6487937","url":null,"abstract":"Recently in signal processing, data models based on sparsity prior have drawn much attention. Using this prior several state-of-the-art result is produced in the case of image and video processing based applications. Furthermore, learning the model parameters greatly improves the performance of a given application. We have studied the learning of such models in relevant feature space, and applied them for color image texture segmentation. We have proposed a scheme for construction of feature vectors for dictionary learning in a sparse framework that enhances the performance of color segmentation. Experimental results validate the scheme adopted, in terms of segmentation efficiency.","PeriodicalId":202526,"journal":{"name":"2013 National Conference on Communications (NCC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120847114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
4×4 optical data vortex switch fabric: BER analysis 4×4光数据旋涡交换结构:误码率分析
2013 National Conference on Communications (NCC) Pub Date : 2013-03-28 DOI: 10.1109/NCC.2013.6488039
R. Sangeetha, D. Chadha, V. Chandra
{"title":"4×4 optical data vortex switch fabric: BER analysis","authors":"R. Sangeetha, D. Chadha, V. Chandra","doi":"10.1109/NCC.2013.6488039","DOIUrl":"https://doi.org/10.1109/NCC.2013.6488039","url":null,"abstract":"In this paper we present the performance of 4×4 optical data vortex optical interconnection network in view of BER characteristics. Cascading of SOA based switching nodes is simulated.","PeriodicalId":202526,"journal":{"name":"2013 National Conference on Communications (NCC)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121073016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Precoder design for asymmetric two-way AF shared relay 非对称双向自动对焦共享中继的预编码器设计
2013 National Conference on Communications (NCC) Pub Date : 2013-03-28 DOI: 10.1109/NCC.2013.6487900
Rohit Budhiraja, B. Ramamurthi
{"title":"Precoder design for asymmetric two-way AF shared relay","authors":"Rohit Budhiraja, B. Ramamurthi","doi":"10.1109/NCC.2013.6487900","DOIUrl":"https://doi.org/10.1109/NCC.2013.6487900","url":null,"abstract":"Two-way relaying (TWR) reduces the loss in spectral efficiency caused in a conventional half-duplex relay. TWR is possible when two nodes exchange data simultaneously through a relay. In the case of cellular systems, data exchange between base station (BS) and users is usually not symmetric, e.g., a user might have uplink data to transmit during multiple access (MAC) phase, but might not have downlink data to receive during broadcast (BC) phase. This asymmetry in data exchange will reduce the gains of TWR. With infrastructure relays, where multiple users communicate through a relay, the BC phase following the MAC phase of a transmitting user (UE1) can be used by the relay to transmit downlink data to a second user (UE2). This will result in the receiving user UE2 not being able to cancel the back-propagating interference in the usual way. Precoders are designed in [1] to mitigate the back-propagating interference at UE2 for an amplify-and-forward (AF) relay. The present work studies the asymmetric data-flow problem for a shared AF relay, wherein multiple BS and users communicate using a common relay with multiple antennas. In this case, UE2 will observe inter-user interference (IUI) in addition to the back-propagating interference. Also, BS will now observe the IUI. We propose a precoder to jointly mitigate the back-propagating interference for UE2 and IUI for BS and UE2. It is shown that the sum-rate performance is better for the proposed precoder than the conventional zero-forcing precoder.","PeriodicalId":202526,"journal":{"name":"2013 National Conference on Communications (NCC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127410964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
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