In this paper, we propose a harvested energy maximization problem of simultaneous wireless information and power transfer (SWIPT) system with popularity cache scheme in dense small cell networks. ...Firstly, network model, content request, and popularity cache schemes are provided in the system model. Then, we establish a harvested energy maximization problem of SWIPT system with popularity cache scheme in dense small cell networks, where maximum transmit power of small cell base stations (SBSs), minimum rate requirement, i.e., quality of service (QoS) of user terminals (UTs), and power splitting ratio are considered. Further, an iterative power splitting ratio and power allocation optimization (IPSPA) algorithm is proposed to solve the formulated problem. Finally, the better performance of our proposed method is demonstrated through a number of simulations. These results are of significance for maximizing harvesting energy of UTs and reducing consumption of backhaul resources and energy.
In the paper entitled as “Actor–Critic-Algorithm-Based Accurate Spectrum Sensing and Transmission Framework and Energy Conservation in Energy-Constrained Wireless Sensor Network-Based Cognitive ...Radios,” H. A. Shah et al., from Inha and Ulsan Universities, Republic of Korea, focus on solving the Markov decision process problem which deals with an actor–critic-algorithm-based solution intended for optimization the action taken in a sensing–transmission framework. M. Ke et al., from PLA Army Engineering University, Nanjing, China, in the paper entitled as “Robust Power Allocation for Cooperative Localization in Jammed Wireless Sensor Networks” investigate the robust power allocation strategies for cooperation in jammed wireless sensor localization systems. ...in the paper “A Self-Powered PMFC-Based Wireless Sensor Node for Smart City Applications,” D. Ayala-Ruiz et al., from Technology Institute of Sonora, Autonomous University of Yucatan and University of Quintana Roo, Mexico, propose a WSN composed of self-powered plant microbial fuel cells as long-range sensor nodes for environmental analysis in smart cities.
SOC Design for Wireless Communications Stamenkovic, Zoran
2016 29th International Conference on VLSI Design and 2016 15th International Conference on Embedded Systems (VLSID),
2016-Jan., 20160101
Conference Proceeding, Journal Article
Summary form only given. A common denominator of system-on-chip (SOC) design is research of how to integrate a whole system on one silicon chip. The tutorial emphasizes design methods, architectures ...and circuits towards system level integration. It gives the basic knowledge and skills for designing small, low-power, embedded devices. Besides tackling issues of functionality, an important goal is to understand the balancing of production cost, development time, and performance of such devices. The complexity of these devices increases exponentially, and so does the effort of designing such systems. Only by using an appropriate design methodology which concentrates on reuse, executable specifications, and early error detection, these complexities can be mastered. The tutorial bundles these topics in order to provide a good understanding of all problems involved. Finally, it teaches how to design large systems and shows how to go from description and simulation to implementation and testing. A good SOC design flow assumes getting a design from the architectural level or RTL level to the chip layout. It should provide the designer with a working starting point for each stage of the design process. The tutorial describes such a methodology that relies on a library of configurable IP cores and custom hardware accelerators and satisfies the unique needs of wireless applications. The SOC design flow will be thoroughly examined with examples drawn from wireless communications.
Emerging Low Power Wide Area Networks (LPWAN) represent a real breakthrough for monitoring applications, since they give the possibility to generate and transmit data over dozens of kilometers while ...consuming few energy. To further increase the autonomy of such wireless systems, the present paper proposes an original methodology to correctly dimension the key elements of an energy autonomous node, namely, the supercapacitor and the battery that mainly give the form factor of the node. Among the LPWAN candidates, LoRa is chosen for real field experiments with a custom wireless platform that proves its energy neutrality over a finite horizon. Different LoRa configurations are explored, leading to adequate dimensioning. As an example, it is shown that, for the same quality of service, the size of the solar panel needed to keep a LoRa node autonomous in the South of France is less than half of the size required in North of France.
The medical knowledge sharing community provides users with an open platform for accessing medical resources and sharing medical knowledge, treatment experience, and emotions. Compared with the ...recipients of general commodities, the recipients in the medical knowledge sharing community pay more attention to the intensity or overall evaluation of emotional vocabularies in the comments, such as treatment effects, prices, service attitudes, and other aspects. Therefore, the overall evaluation is not a key factor in medical service comments, but the semantics of the emotional polarity is the key to affect recipients of the medical information. In this paper, we propose an adaptive learning emotion identification method (ALEIM) based on mutual information feature weight, which captures the correlation and redundancy of features. In order to evaluate the proposed method’s effectiveness, we use four basic corpus libraries crawled from the Haodf’s online platform and employ Taiwan University NTUSD Simplified Chinese Emotion Dictionary for emotion classification. The experimental results show that our proposed ALEIM method has a better performance for the identification of the low-frequency words’ redundant features in comments of the online medical knowledge sharing community.
La présente thèse compare le drame Le Docteur Faust de Christopher Marlowe (1604, 1616) avec la première traduction française faite par Jean-Pierre Antoine Bazy (1850) et la première traduction ...italienne faite par Eugenio Turiello (1898) en visant à identifier les changements textuels révélateurs du contexte culturelle et idéologique au moment où se produisent les deux textes cibles. Le Docteur Faust est un exemple emblématique de l’instabilité du texte dramatique source. Il nous est parvenu en deux versions (le texte A et le texte B) différentes du point de vue structurel, thématique et doctrinal. En revanche, aucune version ne permet pas une interprétation cohérente. Ce travail a pour propos d’examiner si les traductions de Bazy et de Turiello, qui proviennent de contextes géographiques, historiques et littéraires différents mais étroitement liés, multiplient les lectures plausibles ou bien si elles aboutissent à une vision plus constante. En outre, on s’interroge sur la cause des variations textuelles, généralement dénommées en traductologie les glissements. Tout d’abord, j’ai identifié une régularité des glissements qui se manifestent dans deux traductions en question. Puis, j’ai analysé les effets des glissements sur la structure et la signification générales des textes. Enfin, en adoptant une approche socioculturelle de l’analyse des traductions, j’ai exploré la manière dont les changements sont déterminés par l’idéologie des traducteurs et leur interprétation de l’original. Cela explique leur position au sein de l’espace politique et idéologique de chaque culture d’arrivée, ainsi que les normes traductrices et culturelles adoptées au cours de la traduction.
The aim of this research is to compare Christopher Marlowe’s play Doctor Faustus (1604, 1616) with the first French translation by Jean-Pierre Antoine Bazy (1850) and the first Italian translation by Eugenio Turiello (1898) in search of the changes that are symptomatic of the cultural and ideological context of translation production. The case of Doctor Faustus represents the epitome of the instability of a dramatic source text. Two main versions of the play (the A-text and the B-text) differ in structural, thematic and doctrinal terms. At the same time, neither version delivers a coherent vision. The research seeks to examine whether Bazy’s and Turiello’s translation, belonging to different yet related geographical, historical and literary traditions, further multiply the potential readings of the original or whether they display a more consistent framework. In addition, we will analyse the causes of textual variation, commonly labelled in Translation Studies as shifts. First, we identified a pattern of shifts manifested in the target texts in question. Then, we discussed the ways in which the identified patterns of shifts affect the general meaning and the structure of the texts. Finally, adopting a socio-cultural approach, we showed how certain shifts are conditioned by the translators’ ideology and their interpretation of the original. This in turn reveals the positions they occupy within the political and ideological space of each target culture and the main cultural and translation norms operating in the recipient systems.
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