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Study of Existing Problems and Solution in Vehicle Monitoring System

Zhu Zhuangsheng,Wan Dejun,Wang Qing,Zhang Xiaoguo

Strategic Study of CAE 2003, Volume 5, Issue 9, Pages 49-54

Abstract:

The purpose of this paper was providing some experience and ready reference for people who could design a utile and abroad popular GPS vehicle monitoring system. The author demonstrated some problems existing in the vehicle monitoring system, such as digital map model errors lead to map matching errors; telecommunication system information lag results in vehicle real time position error and global position system multipath error affects vehicle position. The authors had provided some schemes for solving the problems,e. g. GIS/DR protocol for solving telecommunication system information lag, nerve cell for solving global position system multipath. Experiment showed that the solution schemes had eliminated the system errors. The solution schemes had been applied to some projects,and had acquired very good application effect.

Keywords： GPS digital map vehicle monitoring system telecommunication system

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Prior information based channel estimation for millimeter-wave massive MIMO vehicular communications in 5G and beyond Research Articles

Zhao Yi, Weixia Zou, Xuebin Sun,yz17tx@bupt.edu.cn,zwx0218@bupt.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 6, Pages 777-789 doi: 10.1631/FITEE.2000515

Abstract: (mmWave) has been claimed as the viable solution for high-bandwidth s in 5G and beyond. To realize applications in future s, it is important to take a robust mmWave vehicular network into consideration. However, one challenge in such a network is that mmWave should provide an ultra-fast and high-rate data exchange among vehicles or vehicle-to-infrastructure (V2I). Moreover, traditional real-time strategies are unavailable because vehicle mobility leads to a fast variation mmWave channel. To overcome these issues, a approach for mmWave V2I communications is proposed in this paper. Specifically, by considering a fast-moving vehicle secnario, a corresponding mathematical model for a fast channel is first established. Then, the temporal variation rule between the base station and each mobile user and the determined direction-of-arrival are used to predict the channel prior information (PI). Finally, by exploiting the PI and the characteristics of the channel, the channel is estimated. The simulation results show that the scheme in this paper outperforms traditional ones in both normalized mean square error and sum-rate performance in the mmWave vehicular system.

Keywords：大规模多入多出；毫米波；信道估计；车辆通信；时变

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Reliability Sensitivity Design of Vehicle Familiar Spring

Zhang Yimin,Liu Qiaolingi,Wen Bangchun

Strategic Study of CAE 2004, Volume 6, Issue 1, Pages 74-80

Abstract:

Based on the reliability design theory and sensitivity analysis method, the reliability sensitivity of the familiar spring for vehicles is extensively discussed and a numerical method for reliability sensitivity design is presented. The variation regularities of reliability sensitivity are obtained and the effects of design parameters on reliability of the familiar spring for vehicles are studied. The method presented in this paper provides the theoretic basis for the reliability design of the vehicle familiar spring.

Keywords： vehicle familiar spring reliability design sensitivity arbitrary distribution parameters

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Application Research on Vehicle Routing Problem With Time Windows Based on Dynamic Ant Algorithm

Liu Yunzhong,Xuan Huiyu

Strategic Study of CAE 2005, Volume 7, Issue 12, Pages 35-40

Abstract:

Ant algorithm is a newly emerged stochastic searching optimization algorithm in recent years. It has been paid much attention to since the successful application in the famous traveling salesman problem. This paper further extends the idea of this new biological optimization strategy to vehicle routing problem with time windows in logistic management and designs a new kind of dynamic ant algorithm. The ability of optimization of this new ant algorithm is tested through numerical computation which gives encouraging results.

Keywords： ant algorithm vehicle routing problem with time windows logistic management dynamic

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Consideration on Developing Mobile Satellite Communication

Zhang Naitong,Zhang Zhongzhao,Chu Haibin,Liu Huijie

Strategic Study of CAE 2002, Volume 4, Issue 10, Pages 11-16

Abstract:

Three kinds of international constellation communication system are introduced in this paper, and the constitution, configuration, function, and existing problems of some representative systems are analyzed. The paper discusses the development and trend of the satellite communication system, and then some viewpoints on developing mobile satellite communication system are put forward.

Keywords： mobile satellite communication constellation communication system broad band service

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Third Generation Mobile Communication——The IP Oriented Application of Modern Wireless Communication Technology

Wu Hequan

Strategic Study of CAE 2000, Volume 2, Issue 8, Pages 69-75

Abstract:

The article firstly reviews the evolution of the 1st generation (analogy) mobile communication system and the 2nd generation (digital) mobile communication system, and predicts that deployment of mobile communication systems will be enter a development period at a more great rate in the next decate. The mobile communication service will extend from voice to data, and the mobile communication technology will transits from circuit mode to packet mode. Following briefly addressing the second and half generation mobile communication system (2.5 GM) that will come to application soon, introduces the 3rd generation mobile communication (3 GM) for broadband multimedia application. Some schemes as mainstream of 3GM RTT (radio transmission technology) standards and the key technologies, especially technical features of TD - SCDMA presented by China, are emphatically described. Finally, The transition strategy from 2GM to 3GM and the development trend of 3GM core network are prospected in this article.

Keywords： mobile communication third generation mobile communication CDMA TD - SCDMA

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Active steering control strategy for articulated vehicles Project supported by the Program for Changjiang Scholars and Innovative Research Team in University, China (No. IRT0626) Article

Kyong-il KIM,Hsin GUAN,Bo WANG,Rui GUO,Fan LIANG

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 6, Pages 576-586 doi: 10.1631/FITEE.1500211

Abstract: To improve maneuverability and stability of articulated vehicles, we design an active steering controller, including tractor and trailer controllers, based on linear quadratic regulator (LQR) theory. First, a three-degree-of-freedom (3-DOF) model of the tractor-trailer with steered trailer axles is built. The simulated annealing particle swarm optimization (SAPSO) algorithm is applied to identify the key parameters of the model under specified vehicle speed and steering wheel angle. Thus, the key parameters of the simplified model can be obtained according to the vehicle conditions using an online look-up table and interpolation. Simulation results show that vehicle parameter outputs of the simplified model and TruckSim agree well, thus providing the ideal reference yaw rate for the controller. Then the active steering controller of the tractor and trailer based on LQR is designed to follow the desired yaw rate and minimize their side-slip angle of the center of gravity (CG) at the same time. Finally, simulation tests at both low speed and high speed are conducted based on the TruckSim-Simulink program. The results show significant effects on the active steering controller on improving maneuverability at low speed and lateral stability at high speed for the articulated vehicle. The control strategy is applicable for steering not only along gentle curves but also along sharp curves.

Keywords： Articulated vehicle Sharp curve Lateral stability Linear quadratic regulator (LQR)

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From Terahertz Imaging to Terahertz Wireless Communications Review

Yi Huang,Yaochun Shen,Jiayou Wang

Engineering 2023, Volume 22, Issue 3, Pages 106-124 doi: 10.1016/j.eng.2022.06.023

Abstract:

Terahertz (THz) technology is probably best known to the public as a powerful tool for imaging, since it has been applied in security and medical scanning, resulting in numerous impressive images that would be unobtainable using other technologies. With the roll-out of 5G mobile networks, research into 6G wireless communications is heating up. It is envisioned that THz technology will be used for 6G and future wireless communications. In this paper, we review how THz technology has been employed for imaging and wireless communications, identify state-of-the-art developments in the field, and then examine and compare common devices and issues in both applications. The possibility of integrating THz imaging/sensing and wireless communications is considered, and challenges and future perspectives are presented and discussed. It is shown that THz technology is indeed a key enabling technology for both imaging and wireless communications in the future.

Keywords： Communications Imaging Terahertz technology Wireless communications

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A Probabilistic Architecture of Long-Term Vehicle Trajectory Prediction for Autonomous Driving Article

Jinxin Liu, Yugong Luo, Zhihua Zhong, Keqiang Li, Heye Huang, Hui Xiong

Engineering 2022, Volume 19, Issue 12, Pages 228-239 doi: 10.1016/j.eng.2021.12.020

Abstract:

In mixed and dynamic traffic environments, accurate long-term trajectory forecasting of surrounding vehicles is one of the indispensable preconditions for autonomous vehicles (AVs) to accomplish reasonable behavioral decisions and guarantee driving safety. In this paper, we propose an integrated probabilistic architecture for long-term vehicle trajectory prediction, which consists of a driving inference model (DIM) and a trajectory prediction model (TPM). The DIM is designed and employed to accurately infer the potential driving intention based on a dynamic Bayesian network. The proposed DIM incorporates the basic traffic rules and multivariate vehicle motion information. To further improve the prediction accuracy and realize uncertainty estimation, we develop a Gaussian process (GP)-based TPM, considering both the short-term prediction results of the vehicle model and the driving motion characteristics. Afterward, the effectiveness of our novel approach is demonstrated by conducting experiments on a public naturalistic driving dataset under lane-changing scenarios. The superior performance on the task of long-term trajectory prediction is presented and verified by comparing with other advanced methods.

Keywords： Autonomous driving Dynamic Bayesian network Driving intention recognition Gaussian process Vehicle trajectory prediction

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The Development Trent of Advanced Communication Technology

Bi Houjie

Strategic Study of CAE 2000, Volume 2, Issue 8, Pages 31-34

Abstract:

In this paper, the development trend of advanced communication network terminals is summarized and analyzed. It is instructive to point out that industrialization of communication software and development of the EDA technology must be strengthened in order to meet the challenge of entering WTO.

Keywords： telecommunication network grouping multimedium mobility communication terminal

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Researches and Suggestions on Development Strategy of Military Anti-jamming Communication Engineering

Yao Fuqiang

Strategic Study of CAE 2005, Volume 7, Issue 5, Pages 24-29

Abstract:

Based on expatiating the covering range of military anti-jammjing communication equipments and analyzing the development current of anti-jamming communication abroad, this paper researches emphatically the development strategy of military anti-jamming communication engineering, and puts forward some suggestions in this field, for the new military revolution and informzation construction of the PLA.

Keywords： military communication anti-jamming electronic defence

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Spatiotemporal distance embedded hybrid ant colony algorithm for a kind of vehicle routing problem with constraints Research Article

Zhenhui FENG, Renbin XIAO,feng_zh@hust.edu.cn,rbxiao@hust.edu.cn

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 7, Pages 1062-1079 doi: 10.1631/FITEE.2200585

Abstract: We investigate a kind of in the car-sharing mobility environment, where the problem is based on user orders, and each order has a reservation time limit and two location point transitions, origin and destination. It is a typical extended vehicle routing problem (VRP) with both time and space constraints. We consider the VRPC problem characteristics and establish a vehicle scheduling model to minimize operating costs and maximize user (or passenger) experience. To solve the scheduling model more accurately, a spatiotemporal distance representation function is defined based on the temporal and spatial properties of the customer, and a spatiotemporal distance embedded hybrid ant colony algorithm (HACA-ST) is proposed. The algorithm can be divided into two stages. First, through spatiotemporal clustering, the spatiotemporal distance between users is the main measure used to classify customers in categories, which helps provide heuristic information for problem solving. Second, an improved ) is proposed to optimize the solution by combining a and the to obtain the final scheduling route. Computational analysis is carried out based on existing data sets and simulated urban instances. Compared with other heuristic algorithms, HACA-ST reduces the length of the shortest route by 2%–14% in benchmark instances. In VRPC testing instances, concerning the combined cost, HACA-ST has competitive cost compared to existing VRP-related algorithms. Finally, we provide two actual urban scenarios to further verify the effectiveness of the proposed algorithm.

Keywords： Vehicle routing problem with constraints (VRPC) Spatiotemporal distance function Labor division strategy Ant colony algorithm (ACO

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Meteorological Telecommunication Network &Computer Systems Engineering

Li Huang,Wang Chunhu

Strategic Study of CAE 2000, Volume 2, Issue 9, Pages 101-106

Abstract:

As the information infrastructure for the meteorological services in China, meteorological telecommunication networks and computer systems have made great progress in terms of networking and computer applications. For the 21st century, the meteorological services in China will continue to be improved with leaps and bounds, the meteorological information infrastructure will also be further strengthened and along developed the expansion and advance of the national information infrastructure. This article introduces the developments regarding both meteorological telecommunication networks and computer systems, and presents the status of the construction in modernized system projects of China Meteorological Administration as well as it´s engineering applications .

Keywords： telecommunication network computer systems engineering

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An improved Merkle hash tree based secure scheme for bionic underwater acoustic communication Research Articles

Masoud Kaveh, Abolfazl Falahati,afalahati@iust.ac.ir

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 7, Pages 1010-1019 doi: 10.1631/FITEE.2000043

Abstract: Recently, bionic signals have been used to achieve covert underwater acoustic communication (UWAC) with high signal-to-noise ratios (SNRs) over transmission systems. A high SNR allows the attackers to proceed with their mischievous goals and makes transmission systems vulnerable against malicious attacks. In this paper we propose an based secure scheme that can resist current underwater attacks, i.e., replay attack, fabricated message attack, message-altering attack, and analyst attack. Security analysis is performed to prove that the proposed scheme can resist these types of attacks. Performance evaluations show that the proposed scheme can meet UWAC limitations due to its efficiency regarding energy consumption, communication overhead, and computation cost.

Keywords：海豚哨音；改进Merkle哈希树；安全水声通信（UWAC）

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A cooperative heterogeneous vehicular clustering framework for efficiency improvement Research Articles

Iftikhar Ahmad, Rafidah Md Noor, Zaheed Ahmed, Umm-e-Habiba, Naveed Akram, Fausto Pedro García Márquez,ify_ia@yahoo.com,faustopedro.garcia@uclm.es

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 9, Pages 1247-1259 doi: 10.1631/FITEE.2000260

Abstract: Heterogeneous ing integrates multiple types of communication networks to work efficiently for various vehicular applications. One popular form of heterogeneous network is the integration of long-term evolution (LTE) and dedicated short-range communication. The of such a network infrastructure and the non- involved in sharing cost/data are potential problems to solve. A ing framework is one solution to these problems, but the framework should be formally verified and validated before being deployed in the real world. To solve these issues, first, we present a heterogeneous framework, named destination and interest-aware clustering, for ing that integrates vehicular ad hoc networks with the LTE network for improving road traffic efficiency. Then, we specify a model system of the proposed framework. The model is formally verified to evaluate its performance at the functional level using a model checking technique. To evaluate the performance of the proposed framework at the micro-level, a heterogeneous simulation environment is created by integrating state-of-the-art tools. The comparison of the simulation results with those of other known approaches shows that our proposed framework performs better.

Keywords：车辆集群；异构性；协同；形式验证；系统模型

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Title Author Date Type Operation

Study of Existing Problems and Solution in Vehicle Monitoring System

Zhu Zhuangsheng,Wan Dejun,Wang Qing,Zhang Xiaoguo

Journal Article

Prior information based channel estimation for millimeter-wave massive MIMO vehicular communications in 5G and beyond

Zhao Yi, Weixia Zou, Xuebin Sun,yz17tx@bupt.edu.cn,zwx0218@bupt.edu.cn

Journal Article

Reliability Sensitivity Design of Vehicle Familiar Spring

Zhang Yimin,Liu Qiaolingi,Wen Bangchun

Journal Article

Application Research on Vehicle Routing Problem With Time Windows Based on Dynamic Ant Algorithm

Liu Yunzhong,Xuan Huiyu

Journal Article

Consideration on Developing Mobile Satellite Communication

Zhang Naitong,Zhang Zhongzhao,Chu Haibin,Liu Huijie

Journal Article

Third Generation Mobile Communication——The IP Oriented Application of Modern Wireless Communication Technology

Wu Hequan

Journal Article

Active steering control strategy for articulated vehicles Project supported by the Program for Changjiang Scholars and Innovative Research Team in University, China (No. IRT0626)

Kyong-il KIM,Hsin GUAN,Bo WANG,Rui GUO,Fan LIANG

Journal Article

From Terahertz Imaging to Terahertz Wireless Communications

Yi Huang,Yaochun Shen,Jiayou Wang

Journal Article

A Probabilistic Architecture of Long-Term Vehicle Trajectory Prediction for Autonomous Driving

Jinxin Liu, Yugong Luo, Zhihua Zhong, Keqiang Li, Heye Huang, Hui Xiong

Journal Article

The Development Trent of Advanced Communication Technology

Bi Houjie

Journal Article

Researches and Suggestions on Development Strategy of Military Anti-jamming Communication Engineering