New chameleon Hashing of secure and privacy-preserving vehicular communications by Jian-hong ZHANG, Wei-na ZHEN, Jian-cheng ZOU

“…Many services and applications in vehicular ad-hoc networks (VANET) require preserving and secure data communications.To improve driving safety and comfort,the traffic-related status information will be broadcasted regularly and shared among drivers.Without the security and privacy guarantee,attackers could track their interested vehicles by collecting and analyzing their traffic messages.Hence,anonymous message authentication is an essential requirement of VANET.On the other hand,when a vehicle is involved in a dispute event of warning message,the certificate authority should be able to recover the real identity of this vehicle.To deal with this issue,Guo,et al proposed a new privacy-preserving authentication protocol with authority traceability using elliptic curve based chameleon Hashing.Although this scheme has vehicle identification traceability and high computational efficiency than the previous plan,but analysis shows that the scheme does not meet the anonymity.The security of Guo's scheme is analyzed and improvement is made based on Guo’s protocol.…”
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Sayısal Çağda Sayısal Radyo Yayıncılığı: Sayısal Ses Yayın (DAB) Teknolojisi ve Türkiye'deki Yansıması by E.özlem Ataman

“…Pek çok Avrupa ülkesinin sayısal ses yayıncılığında (digital audio broadcasting) kullandığı DAB teknolojisinin ülkemizde de uygulanmasına yönelik anlaşmalarda bulunulmuştur. …”
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CCA-secure verifiable Mix-Net protocol by Long-hai LI, Cheng-qiang HUANG, Shang-mei XU, Shao-feng FU

“…A CCA-secure verifiable Mix-Net protocol with provable security was proposed.The protocol was based on Wikström’s Mix-Net and improves its security by introducing an improved key generation algorithm and a new method for constructing proof of secret shuffling.Without revealing the correspondence between inputs and outputs,proposed protocol enables everyone to verify the correctness of output plaintexts through checking evidences broadcasted by each server.Thus,it satisfies public verifiability.Any sender can trace and examine the processing procedure of its ciphertext.Thus,proposed protocol satisfies sender verifiability.It is prored to be CCA-secure under the assumption of random oracle.Compared with previous mix-net schemes which are CCA-secure,proposed protocol does not require any trusted center,and incurs fewer interactions between servers which also resulting in a lower computation and communication complexity.Hence,the protocol is an ideal cryptographic tool for constructing secure electronic election protocol.…”
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« On ne devrait exiger de personne de parler dans un micro ». Les débats autour de la présence des micros dans les prétoires dans la RFA des années 1950 by Nathalie Le Bouëdec

“…In the Federal Republic of Germany, the 1964 law banning the recording and broadcasting of court hearings was preceded by more than a decade of debate, initially centred on the presence of microphones in courtrooms before the rise of television in the late 1950s. …”
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Creating, using, and sharing embodied information in the ultrarunning community on Instagram by Laura Williams, Andrew Cox, Andrea Jimenez

“…Embodied information relating to the key genres of ultrarunning is shared using on the run video, live broadcasts, photographs of kit and data infographics. …”
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An Energy-Aware Routing Protocol for Query-Based Applications in Wireless Sensor Networks by Ehsan Ahvar, Shohreh Ahvar, Gyu Myoung Lee, Noel Crespi

“…This is achieved by means of fuzzy sets and learning automata techniques along with zonal broadcasting to decrease total energy consumption.…”
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New slot management scheme supporting ONU sleep mode by Yin-fa ZHANG, Lei JIA, Jian YANG, Tao LIU

“…Aimed at the problem of optical network units(ONU) energy saving,a new based on the polling cycle time slot management scheme was proposed.In this scheme,polling cycle was a bandwidth allocation unit,and the transceiver time slots for each ONU were assigned at the beginning of each polling cycle,then the slot allocation information was broadcasted to each ONU through a modified GATE frame.Each ONU received the GATE frame,and extracted its own slot allocation information,and thus received or transmitted data within the allocated time slots in the polling cycle.When there was no need for receiving or transmitting data,the ONU would go into sleep mode with low energy consumption.Theoretical analysis and numerical simulation calculations show that the ONU with new time slot management scheme is only 11% of the energy consumption of the ordinary ONU,While the introduction of the downlink packet delay don’t exceed 2ms,and downlink average queue length is less than 2Mbit.…”
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Connectivity Analysis for Free-Flow Traffic in VANETs: A Statistical Approach by Chen Chen, Xiaobo Du, Qingqi Pei, Yanan Jin

“…In addition, relying only on the direct connectivity in most of the previous works, say broadcasting which provides one-hop connections between nodes is far from the continuously growing application demands in VANETs, such as inter-vehicle entertainments, cooperative collision avoidances, and inter-vehicle emergency notifications. …”
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Synchronization based on preamble symbol for DVB-T2 system by Jie TANG, Fang WANG, Ming-qi LI

“…DVB-T2（digita1 video broadcasting-second generation terrestria1）system adopted a preamb1e，with a specia1 C-A-B structure，to accomp1ish time-frequency synchronization.A11 existing preamb1e based synchronization a1gorithms on1y uti1ized the corre1ation between C and A or B and A，neg1ecting the conjugate symmetry character within A.By using this character，a new synchronization method was proposed to make detection probabi1ity higher and synchronization error sma11er.Monto Car1o simu1ations were carried out in AWGN（addictive white Gaussian noise）channe1 and TU6（typica1 urban）channe1 with ve1ocity of 30 km/h.Compared with existing synchronization methods，both higher detection probabi1ity and sma11er mean square error in time-frequency synchronization is achieved.…”
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ce-time coded scheme for two-way relay system by Feng LI, Lei WANG, Zhi-gang CHEN

“…In two-way relay system,focusing on the problem that using SSK transmission can not achieve the transmit diversity and has lower spectral efficiency,a diagonal space-time coded spatial modulation scheme called DSTC-SM scheme was proposed.In the DSTC-SM scheme,the source nodes transmit signals to the relay node by using the DSTC-SM codewords,and then the relay node equipped with one antenna amplifies the received signals and broadcasts them to the destination nodes.The proposed scheme uses the diagonal space-time codes as the core space-time block code (STBC) to construct the DSTC-SM codewords,and combines with SM technology to take advantage of the benefits of DSTC and SM.The antenna pairs activated in different codewords are moving cyclically along the total transmit antenna array.In addition,the rotation angles are further optimized to maximize the diversity and coding gains of the DSTC-SM codewords,so the proposed scheme can still obtain diversity gain even though only one transmit antenna is activated.Simulation results show that the proposed scheme outperforms the existing schemes.…”
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Partis politiques et médias en Grande-Bretagne : entre rivalité et complicité by Karine Rivière-De Franco

“…In other circumstances, the political parties and the media become partners, since the media enable the parties to transmit their messages without any external modification through electoral broadcasts and advertisements and sometimes they even take an active part in the parties’ electoral campaigns. …”
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Node-Gosper Curve-Based Unknown Sensor Localization Using Single Mobile Anchor in Wireless Sensor Networks by Chi-Chang Chen, Sheng-Bo Wang

“…In our proposed localization method, the mobile anchor travels along the node-Gosper curve, which covers the entire sensing field, and when it reaches the turning points of the node-Gosper curve, it broadcasts its current location to unknown sensors within a preset communication range. …”
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A distributed data secure transmission scheme in wireless sensor network by Wei Liang, Yin Huang, Jianbo Xu, Songyou Xie

“…Therefore, it is difficult to ensure security of broadcasting data transferred from a single wireless sensor node to base station. …”
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Transmission Power Controlled Localization with Topology Building for NLOS Environments by Jin-Ho You, Jong-Hyeok Jeon, Tae-Hyung Lee, Young-Goo Kwon

“…The update procedures cause frequent broadcasting and calculation for relocalization; therefore, maintaining the transmission power control (TPC) in the wireless sensor networks (WSNs) is valuable to the network. …”
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Debating Toynbee's theory of challenge and response: Christian civilisation or Western imperialism? by F. Hale

“… In his 1952 Reith Lectures on the British Broadcasting Corporation, “The World and the West”, the eminent London historian Professor Arnold Toynbee sought to explain inter alia why western European hegemony over much of the world was widely resented. …”
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A Mobile Anchor Assisted Localization Algorithm Based on Regular Hexagon in Wireless Sensor Networks by Guangjie Han, Chenyu Zhang, Jaime Lloret, Lei Shu, Joel J. P. C. Rodrigues

“…A promising method to localize unknown nodes is to use several mobile anchors which are equipped with GPS units moving among unknown nodes and periodically broadcasting their current locations to help nearby unknown nodes with localization. …”
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Time series and semantics-based chinese microblog topic detection and tracking method by Tie-ming CHEN, Xiao-hao WANG, Wei-wei PANG, Jie JIANG

“…As a widely used tool in social networks,microblog is definitely with short document,quick broadcasting and topic changeable,which results in big challenging for social topic detection and tracking.A new systematic framework for micro-blog topic detection and tracking was proposed based on the microblog clustering using temporal trend and semantic similarity.Firstly,a feature words selection method for hot topics was presented by defining the temporal frequent words set.Secondly,an initially clustering was conducted depending on the selected temporal frequent words set.As far as the overlaps between initial clusters concerned,an effective overlap elimination algorithm was proposed,by introducing the extended short document semantic membership,to separate any possible overlapped initial clusters.Finally,an aggregated topic clustering method was employed using the cluster semantic similarity matrix.The experiments were at last done on some real-world dataset from Sina microblog.It show that the method for chinese microblog topic detection and tracking can obtain excellent performance and results.…”
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Mathematical Representation of Color Spaces and Its Role in Communication Systems by Riyadh M. Al-saleem, Baraa M. Al-Hilali, Izz K. Abboud

“…The development of color systems has an impact on visual communication such as television broadcasting systems, medical image processing, and video signal processing, as well as in the field of computer such as graphic equipment and printing.…”
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Les représentations sociales pour cerner l’évolution des conceptions de la forêt québécoise : une analyse autour du documentaire L’erreur boréale by Isabelle Paré

“…Using a sequential mixed method design combining a similarity analysis to a thematic content analysis, we uncover social representations of forest as they were conveyed in the daily newspaper La Tribune, both before and after the broadcasting of L’erreur boréale. Divergent conceptions of forest were found. …”
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A visual-physiology multimodal system for detecting outlier behavior of participants in a reality TV show by Shinjin Kang, Donggyun Kim, Youngbin Kim

“…Finally, we present a case where a visual-physiology multimodal system can be useful for a real TV broadcasting production.…”
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