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2015 Twenty First National Conference on Communications (NCC)最新文献

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Adaptive Transmission Power Protocol for heterogeneous Wireless Sensor Networks 异构无线传感器网络的自适应传输功率协议
2015 Twenty First National Conference on Communications (NCC) Pub Date : 2015-04-16 DOI: 10.1109/NCC.2015.7084898
Vijay Rao, P. PriyeshP, Subrat Kar
{"title":"Adaptive Transmission Power Protocol for heterogeneous Wireless Sensor Networks","authors":"Vijay Rao, P. PriyeshP, Subrat Kar","doi":"10.1109/NCC.2015.7084898","DOIUrl":"https://doi.org/10.1109/NCC.2015.7084898","url":null,"abstract":"A novel communication protocol - Adaptive Transmission Power Protocol - for Wireless Sensor Networks with the facility of reconfiguring the transmission power of the hardware is presented. Specifications of the protocol including the packet format and the contention avoidance methods are described. The protocol is implemented on a hardware platform and the performance is considered for a fundamental operation. The results show that non-overlapping regions exist for different transmission power levels where the system performance is optimum. More importantly, these regions move farther from the node with increase in transmission power level. It is observed that reconfiguring transmission power levels is an effective way of saving energy in Wireless Sensor Networks, the operation of which is abstracted by the implementation of the Adaptive Transmission Power Protocol.","PeriodicalId":302718,"journal":{"name":"2015 Twenty First National Conference on Communications (NCC)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122494595","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
Performance analysis of virtual optical bus networks 虚拟光总线网络的性能分析
2015 Twenty First National Conference on Communications (NCC) Pub Date : 2015-04-16 DOI: 10.1109/NCC.2015.7084874
S. Singh, R. Manivasakan
{"title":"Performance analysis of virtual optical bus networks","authors":"S. Singh, R. Manivasakan","doi":"10.1109/NCC.2015.7084874","DOIUrl":"https://doi.org/10.1109/NCC.2015.7084874","url":null,"abstract":"We analyze the performance of virtual optical bus (VOB) networks, which is a packet-oriented all-optical solution for transport networks. VOB groups the flows into clusters and coordinates their packets within each cluster in order to minimize the packet collision in the network. We theoretically study the multiplexing (grouping) of packets of flows in a VOB, by modeling a VOB node, in a VOB network, as a queuing system. We derive the expression for the packet loss rate due to inter-VOB collisions, and compare the performance (packet loss rate) of VOB with that of Optical Burst Switching (OBS). We show that the packet loss rate for VOB is upper bounded by the packet/burst loss rate of OBS.","PeriodicalId":302718,"journal":{"name":"2015 Twenty First National Conference on Communications (NCC)","volume":"1073 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116294509","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
Optimal and suboptimal decoding for SIM-BPSK over Gamma-Gamma FSO links with an erroneous relay 带有错误中继的Gamma-Gamma FSO链路上SIM-BPSK的最佳和次最佳解码
2015 Twenty First National Conference on Communications (NCC) Pub Date : 2015-04-16 DOI: 10.1109/NCC.2015.7084903
Ankur Bansal, P. Sharma, M. Bhatnagar
{"title":"Optimal and suboptimal decoding for SIM-BPSK over Gamma-Gamma FSO links with an erroneous relay","authors":"Ankur Bansal, P. Sharma, M. Bhatnagar","doi":"10.1109/NCC.2015.7084903","DOIUrl":"https://doi.org/10.1109/NCC.2015.7084903","url":null,"abstract":"In this paper, we analyze a free space optical (FSO) cooperative communication system utilizing the Gamma-Gamma fading optical links and a single decode-and-forward (DF) erroneous relay. We adopt the subcarrier intensity modulation (SIM) technique for transmission of the binary phase shift keying (BPSK) modulated data over an optical link. For the considered DF-FSO cooperative system, we derive a maximum-likelihood (ML) decoder and a sub-optimal piecewise linear (PL) decoder in the destination of the system. The proposed PL decoder performs very close to the ML decoder with a significant reduction in the decoding complexity. Both the ML and the PL decoders incorporate the possibility of erroneous transmission by the DF relay and require the average statistics of the source-relay link for decoding the data of the source in the destination. Moreover, we also derive the closed-form expression for the average bit error rate (BER) of the proposed PL decoder.","PeriodicalId":302718,"journal":{"name":"2015 Twenty First National Conference on Communications (NCC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126690121","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
User dictionary merge for enhancing smart phone auto prediction 用户字典合并，增强智能手机自动预测
2015 Twenty First National Conference on Communications (NCC) Pub Date : 2015-04-16 DOI: 10.1109/NCC.2015.7084844
Abhijit Prakash Bhatnagar, A. Sehgal
{"title":"User dictionary merge for enhancing smart phone auto prediction","authors":"Abhijit Prakash Bhatnagar, A. Sehgal","doi":"10.1109/NCC.2015.7084844","DOIUrl":"https://doi.org/10.1109/NCC.2015.7084844","url":null,"abstract":"Smart phone keyboards render a device based text prediction system which is usually built around the keyboard application under use. Withal, they infer a restriction since the techniques used in the system are mostly confined to device in scope. In this paper, we formulate a method to merge various user dictionaries so as to increase keystroke savings on average for a smart phone user. The method described in this paper takes into account relations among a multitude of users, and applies it to merge the user dictionary at a level derived from the relations. We show an increase in percentage keystroke savings for experimental data by applying this algorithm to context insensitive variation of word prediction.","PeriodicalId":302718,"journal":{"name":"2015 Twenty First National Conference on Communications (NCC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130995295","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
Discrimination of melodic patterns in indian classical music 印度古典音乐中旋律模式的辨析
2015 Twenty First National Conference on Communications (NCC) Pub Date : 2015-04-16 DOI: 10.1109/NCC.2015.7084866
K. Ganguli, P. Rao
{"title":"Discrimination of melodic patterns in indian classical music","authors":"K. Ganguli, P. Rao","doi":"10.1109/NCC.2015.7084866","DOIUrl":"https://doi.org/10.1109/NCC.2015.7084866","url":null,"abstract":"The melodic phrases of a raga are an important cue to its identity. Artists, however, incorporate considerable creative variation within a raga phrase during performance while still preserving its identity in the ears of the listeners. It is of interest therefore to explore the boundaries of this categorization of phrase identity, given the space of musical variations in the tonal interval and duration dimensions. Such an endeavor can help better model musical similarity for music retrieval and pedagogy applications. In this work, we carry out melodic shape manipulations on a selected prominent phrase of raga Deshkar to study the subjective responses of musicians in comparison with non-musicians in terms of perceived discrimination of the controlled variations. A method is presented for deriving musically consistent synthetic stimuli for listening. Subjective responses on the discrimination and identification tasks are presented along with a discussion on possible perceptual mechanisms at play.","PeriodicalId":302718,"journal":{"name":"2015 Twenty First National Conference on Communications (NCC)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130308132","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: 14
On optimal power sharing for joint sensing and data transmission in cooperative cognitive radio networks 协同认知无线电网络中联合传感和数据传输的最优功率共享
2015 Twenty First National Conference on Communications (NCC) Pub Date : 2015-04-16 DOI: 10.1109/NCC.2015.7084915
Saptarshi Ghosh, T. Acharya, Subhankar Chatterjee, S. Maity
{"title":"On optimal power sharing for joint sensing and data transmission in cooperative cognitive radio networks","authors":"Saptarshi Ghosh, T. Acharya, Subhankar Chatterjee, S. Maity","doi":"10.1109/NCC.2015.7084915","DOIUrl":"https://doi.org/10.1109/NCC.2015.7084915","url":null,"abstract":"In this paper, the problem of joint spectrum sensing and data transmission in a two-user cooperative cognitive radio network is studied. Tractable solution for optimal power allocation is proposed for cognitive sources for both sensing and data transmission slots with an aim to maximize sum throughput of the system while meeting the constraints of probability of detection of PU's signal and total transmission power. Simulation results verify that there exists optimal power sharing factors both for sensing and data transmission slots to maximize the system throughput. Furthermore, performance gain in term of achievable system throughput is noted when the proposed scheme is compared with equal power allocation scheme operated under total power constraint scenario.","PeriodicalId":302718,"journal":{"name":"2015 Twenty First National Conference on Communications (NCC)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116107372","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
HoIP: A point-to-point haptic data communication protocol and its evaluation HoIP:一种点对点触觉数据通信协议及其评价
2015 Twenty First National Conference on Communications (NCC) Pub Date : 2015-04-16 DOI: 10.1109/NCC.2015.7084908
V. Gokhale, S. Chaudhuri, O. Dabeer
{"title":"HoIP: A point-to-point haptic data communication protocol and its evaluation","authors":"V. Gokhale, S. Chaudhuri, O. Dabeer","doi":"10.1109/NCC.2015.7084908","DOIUrl":"https://doi.org/10.1109/NCC.2015.7084908","url":null,"abstract":"Telehaptics applications are usually characterized by a strict imposition of a round trip haptic data latency of less than 30 ms. In this paper, we present Haptics over Internet Protocol (HoIP) - a low latency application layer protocol that enables haptic, audio and video data transmission over a network between two remotely connected nodes. The evaluation of the protocol is carried out through a set of three experiments, each with distinct objectives. First, a haptic-audio-visual (HAV) interactive application, involving two remotely located human personnel communicating via haptic, auditory and visual media, to evaluate the Quality of Service (QoS) violation due to the protocol. Second, a haptic sawing experiment with the goal of assessing the impact of HoIP and network delays in telehaptics applications, by taking the example of a typical telesurgical activity. Third, a telepottery system to determine the protocol's ability in reproducing a real-time interactive user experience with a remote virtual object, in presence of perceptual data compression and reconstruction techniques. Our experiments reveal that the transmission scheduling of multimedia packets performs well in terms of maintaining the latencies well under the QoS thresholds.","PeriodicalId":302718,"journal":{"name":"2015 Twenty First National Conference on Communications (NCC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117052285","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: 13
A compact CPW-fed metamaterial antenna for high efficiency and wideband applications 一种紧凑的cpw馈电超材料天线，用于高效率和宽带应用
2015 Twenty First National Conference on Communications (NCC) Pub Date : 2015-04-16 DOI: 10.1109/NCC.2015.7084825
Ashish Gupta, S. K. Sharma, R. Chaudhary
{"title":"A compact CPW-fed metamaterial antenna for high efficiency and wideband applications","authors":"Ashish Gupta, S. K. Sharma, R. Chaudhary","doi":"10.1109/NCC.2015.7084825","DOIUrl":"https://doi.org/10.1109/NCC.2015.7084825","url":null,"abstract":"In this paper a compact planar CPW-fed metamaterial antenna with closed ring resonator (CRR) has been proposed. It is observed that by employing CRR into the structure an extra band is found at 2.17 GHz (n = -1 mode) and therefore electrical size of the antenna is decreased significantly. CPW- feed is introduced to enhance the bandwidth and radiation efficiency of proposed antenna. This antenna is operated at 2.15 - 2.19 GHz and 3.2 - 5.25 GHz, at the center frequency 4.23 GHz. It achieves peak antenna gain of 2.97 dB and radiation efficiency upto 97%. In addition to that proposed antenna shows consistent radiation patterns throughout the bandwidth.","PeriodicalId":302718,"journal":{"name":"2015 Twenty First National Conference on Communications (NCC)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114394540","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
A tri-mode low cross-polarized circular matched feed for offset reflector antenna system 一种用于偏置反射面天线系统的三模低交叉极化圆匹配馈源
2015 Twenty First National Conference on Communications (NCC) Pub Date : 2015-04-16 DOI: 10.1109/NCC.2015.7084838
R. Jana, R. Bhattacharjee
{"title":"A tri-mode low cross-polarized circular matched feed for offset reflector antenna system","authors":"R. Jana, R. Bhattacharjee","doi":"10.1109/NCC.2015.7084838","DOIUrl":"https://doi.org/10.1109/NCC.2015.7084838","url":null,"abstract":"The cross polar power resulting due to illumination of an offset reflector by a linearly polarized circular feed operating in TE11 mode can be suppressed considerably by employing TE21 and TM11 modes having proper mode coefficients and relative phases. This paper presents the design and performance evaluation of such a smooth walled circular tri-mode matched feed. Using an analytical pattern for the tri-mode feed and physical optics (PO) for computation of far field, mode coefficients and relative phases are estimated using particle swarm optimization (PSO) technique. Through a parametric study in HFSS, matched feed dimensions to achieve required mode coefficients and phases at the design frequency are determined. HFSS is used to evaluate the performance of the matched feed in terms of cross-polarization and beam squinting. A -30 dB cross-polar bandwidth of 2.73% is achieved at the design frequency.","PeriodicalId":302718,"journal":{"name":"2015 Twenty First National Conference on Communications (NCC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116134670","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
Demonstration of a 30 Gbps intensity modulation direct detection OFDM-based passive optical network 基于30gbps强度调制直接检测ofdm的无源光网络的演示
2015 Twenty First National Conference on Communications (NCC) Pub Date : 2015-04-16 DOI: 10.1109/NCC.2015.7084880
K. SaikrishnaReddy, D. Venkitesh, C. Browning, L. Barry
{"title":"Demonstration of a 30 Gbps intensity modulation direct detection OFDM-based passive optical network","authors":"K. SaikrishnaReddy, D. Venkitesh, C. Browning, L. Barry","doi":"10.1109/NCC.2015.7084880","DOIUrl":"https://doi.org/10.1109/NCC.2015.7084880","url":null,"abstract":"Intensity modulation direct detection orthogonal frequency division multiplexing based passive optical network is experimentally demonstrated at data rates of up to 30 Gbps. Error-free performance is achieved for a propagation length of up to 40 km with a spectral efficiency of 1.9 b/s/Hz. Pre-emphasis technique is used to counter the performance degradation in the direct detection system. A semiconductor optical amplifier is used at the remote node stage to increase the power budget of the passive optical network. Split ratios up to 1 × 256 are achieved after 25 km fiber at 30 Gbps down stream data rates.","PeriodicalId":302718,"journal":{"name":"2015 Twenty First National Conference on Communications (NCC)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116198693","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
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