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Analytic models for organic field-effect transistors based on exponential and power mobility models

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Communications in Theoretical Physics 2023年第6期75卷 150-158页

作者： Jinling Luo Jiuxun Sun Shuai Kang Ziwei Pan Xie Fu Liang Wang Wenqiang Lu Chongqing School of University of Chinese Academy of Sciences Chongqing 400714China Chongqing Institute of Green and Intelligent Technology Chinese Academy of SciencesChongqing 400714China University of Chinese Academy of Sciences Beijing 100049China School of Physics University of Electronic Science and Technology of ChinaChengdu 610054China

The fundamental I-V formula of an organic field effect transistor(OFET)is improved to overcome the divergence of the integrand,so it is very convenient for both numerical calculations and analytic *** analytic I-V formulae are derived based on the exponential mobility model and power-function mobility model,respectively,and the derived analytic formulae are applied to three OFET *** results calculated from the reformulated analytic I-V formulae taking in exponential and power function mobility models are all in good agreement with the experimental I-V *** parameters μ_(0) and γ that are extracted from the mobility model and fitted by experimental data show simple Arrhenius temperature dependence and inverse linear relationship with temperature,*** findings are very useful for practical applications and device simulations.

关键词： organic field-effect transistor analytic current-voltage formula mobility model

DTMC-based modeling and Analysis of Obstacle Ad hoc Networks

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China Communications 2010年第5期7卷 83-92页

作者： Tong Ning Wu Di Wang Xiukun Department of Computer Science and Engineering Dalian University of Technology Dalian 116024 P. R. China Shenyang Aircraft Design ＆ Research Institute China Aviation Industry Corporation I Shenyang 110035 P. R. China

One of the main characteristics of Ad hoc networks is node mobility, which results in constantly changing in network topologies. Consequently, the ability to forecast the future status of mobility nodes plays a key role in QOS routing. We propose a random mobility model based on discretetime Markov chain, called ODM. ODM provides a mathematical framework for calculating some parameters to show the future status of mobility nodes, for instance, the state transition probability matrix of nodes, the probability that an edge is valid, the average number of valid-edges and the probability of a request packet found a valid route. Furthermore, ODM can account for obstacle environment. The state transition probability matrix of nodes can quantify the impact of obstacles. Several theorems are given and proved by using the ODM. Simulation results show that the calculated value can forecast the future status of mobility nodes.

关键词： Ad hoc network discrete time markov chain mobility model obstacle

Survey on Simulation for Mobile Ad-Hoc Communication for Disaster Scenarios

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Journal of Computer Science & Technology 2016年第2期31卷 326-349页

作者： Erika Rosas Nicolas Hidalgo Veronica Gil-Costa Carolina Bonacic Mauricio Marin Hermes Senger Luciana Arantes CesarMarcondes Olivier Marin Department of Informatics Engineering University of Santiago Santiago 9170022 Chile National Council of Scientific and Technical Research National University of San Luis San Luis 5700 Argentina Department of Computer Science Federal University of Sao Carlos Sao Carlos 13565-905 Brazil Laboratoire d'Informaique de Paris 6 University of Pierre and Marie C'urrie Sorbonne Universitds UIVttS 11VRIA Paris 75005 France Engineering and Computer Science New York University Shanghai Shanghai 200122 China

Mobile ad-hoc communication is a demonstrated solution to mitigate the impact of infrastructure failures during large-scale disasters. A very complex issue in this domain is the design validation of software applications that support decision-making and communication during natural disasters. Such disasters are irreproducible, highly unpredictable, and impossible to scale down, and thus extensive assessments cannot be led in situ. In this context, simulation constitutes the best approach towards the testing of software solutions for natural disaster responses. The present survey reviews mobility models, ad-hoc network architectures, routing protocols and network simulators. Our aim is to provide guidelines for software developers with regards to the performance evaluation of their applications by means of simulation.

关键词： mobile ad-hoc communication simulation disaster scenario mobility model

Numerical analysis of the self-heating effect in SGOI with a double step buried oxide

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Journal of Semiconductors 2011年第3期32卷 42-48页

作者：李斌刘红侠李劲袁博曹磊 Key Laboratory for Wide Band Gap Semiconductor Materials and Devices of Education School of MicroelectronicsXidian University

To reduce the self-heating effect of strained Si grown on relaxed SiGe-on-insulator（SGOI） n-type metal-oxide-semiconductor field-effect transistors（nMOSFETs）,this paper proposes a novel device called double step buried oxide（BOX） SGOI,investigates its electrical and thermal characteristics,and analyzes the effect of self-heating on its electrical *** the simulation of the device,a low field mobility model for strained Si MOSFETs is established and reduced thermal conductivity resulting from phonon boundary scattering is considered.A comparative study of SGOI nMOSFETs with different BOX thicknesses under channel and different channel strains has been *** reducing moderately the BOX thickness under the channel,the channel temperature caused by the self-heating effect can be effectively ***,mobility degradation,off state current and a short-channel effect such as drain induced barrier lowering can be well ***,SGOI MOSFETs with a thinner BOX under the channel can improve the overall performance and long-term reliability efficiently.

关键词： self-heating effect step BOX SGOI mobility model numerical analysis

Performance Analysis of mobility models in Sparse Ad-hoc Networks

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Performance Analysis of Mobility Models in Sparse Ad-hoc Net...

ESTIMATION METHOD OF AIRSPACE CONNECTIVITY PROBABILITY IN MILITARY AANET

第二十七届中国控制会议

作者： Yang Huan 1,Jiang Hong 2,Liu Lei 3 School of Information Engineering,Southwest University of Science and Technology,Mian Yang 621010,P.R.China

One of the characteristics of Ad-hoc networks is their *** pattern each node moves will have a significant impact on the performance of Ad-hoc *** analyzing and comparing the performances of four mobility models such as RW,RPGM,FW,MH in sparse Ad-hoc networks,it indicates that the impact on the perform-ance of networks is remarkably different when the nodes move in different mobility *** order to realize the effective communication between the fixed node and move nodes in sparse Ad-hoc networks in a large area,we propose a Chain Mo-bility *** this model,the mobile nodes move as a chain,and the stopped node serves as a relay node in *** NS2 simulation results show that this model is suitable for communication in the sparse Ad-hoc circumstance.

关键词： Sparse Ad-hoc networks mobility model Performance

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Journal of Electronics(China) 2013年第6期30卷 538-546页

作者： Luo Changyuan Song Yulong Pang Songchao Information Engineering University

Connectivity is the premise and foundation of networking and *** the probabilistic flight path of military aircraft resulting in the difficulty of Aeronautical Ad hoc NETwork(AANET) research,an estimation method of connectivity probability is *** method takes airspace as the research object,starts with actual flight characteristics,and applies conclusions of random waypoint mobility *** a connectivity model by establishing Airspace Unit Circle(AUC) from the perspective of circle-circle coverage,the method obtains a theory of airspace network *** demonstrates its ***,according to the actual condition simulation,relationship between the number of aircraft,communication radius,and the flight area under connectivity probabilities is achieved,results provide reference for creating a network that under certain aerial combat condition.

关键词： Aeronautical ad hoc network (AANET) Military aviation mobility model Con-nectivity Airspace Unit Circle (AUC)

Optimization of Route Repair in Mobile Ad-hoc Network

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Journal of Shanghai University(English Edition) 2004年第2期8卷 169-176页

作者：李承汪为农 Network and Information Center Network and Information Center Shanghai Jiaotong University Shanghai 200030 P.R. China Shanghai Jiaotong University Shanghai 200030 P.R. China

A main shortcoming of mobile Ad-hoc network's reactive routing protocols is the large volume of far-reaching control traffic required to support the route discovery (RD) and route repair (RR) mechanism. Using a random mobility model, this paper derives the probability equation of the relative distance (RDIS) between any two mobile hosts in an ad-hoc network. Consequently, combining with average equivalent hop distance (AEHD), a host can estimate the routing hops between itself and any destination host each time the RD/RR procedure is triggered, and reduce the flooding area of RD/RR messages. Simulation results show that this optimized route repair (ORR) algorithm can significantly decrease the communication overhead of RR process by about 35%.

关键词： mobile ad-hoc network mobility model routing protocol optimized routing repair