Mobile Ubiquitous Network Environment

The Mobile Ubiquitous Service Environment (MUSE), established through the coordination and integration of mobile telecommunications and ubiquitous network in the pursuit of Always Best Experience (ABE), represents the major development trend for the next generation mobile wireless network. Research on MUSE will involve the integration of computing model system, service platform system, operating system and terminal structure system, all of which involve exploration and innovation of new networking structure, its control and management as well as way of measuring. The change in network resources triggers the change in network computing models. To make readers have a basic understanding of mobile ubiquitous network environment, this lecture will introduce MUSE in two sections. The first section describes the background of MUSE and its future development prospect. The second section focuses on the design principles and key technologies in MUSE model, which make services realized, as well as the networking structure of MUSE model, and the key technologies and design principles of networking.

Ubiquitous Sensor Network for Chemical Sensors

Wireless sensor networks have been identified as one of the most important technologies for the 21 st century.Recent advances in micro sensor fabrication technology and wireless communication technology enable the practical deployment of large-scale,low-power,inexpensive sensor networks.Such an approach offers an advantage over traditional sensing methods in many ways:large-scale,dense deployment not only extends spatial coverage and achieves higher resolution,but also increases the system's fault-tolerance and robustness.Moreover,the ad-hoc nature of wireless sensor networks makes them even more attractive for military and other risk-associated applications,such as environmental observation and habitat monitoring.

无线泛在网的用户体验质量综合评估机制(英文)

To assess Quality of Experience (QoE) for multimedia services in wireless ubiquitous networks, integrated QoE assessment mechanism is proposed. Firstly, hierarchical QoE definition considering device capacity and environment factor is introduced, and then corresponding QoE measurement architecture is described. Secondly, quantitative mapping scheme among the defined sets is introduced. Simulation for Video on Demand (VoD) and video telephone service in Universal Mobile Telecommunications System (UMTS) urban scenario shows experience and network condition can be well measured. Useful suggestions are still given for operators to keep user experience at an acceptable level.

Ubiquitous Machine-to-Machine Service Networks

In the near future,there will be many more embedded devices than there are mobile phones.When these devices are connected to the Internet,many novel kinds of ubiquitous service will be enabled.

Role,path,and vision of“5G+BDS/GNSS”

Communication,positioning,navigation,and decision-making abilities have evolved into Positioning,Navigation,and Timing(PNT)intelligence during the long process of human migration and hence promoted human evolution.This article defines intelligence and smartness from the perspective of biological intelligence.New requirements as a result of the development of communication,navigation,time service,and decision making are identified in this study.The article points out that there are many radio PNT service methods,such as 5G,the new-generation high-speed communication networks and the low-latency and ubiquitous mobile communication networks as well as Global Navigation Satellite System(GNSS),but the integrated application is especially important in providing technical support for the adjustment and control of the physical world by intelligent sensing,cognition,decision-making,and precise coordination.The fusion of 5G and GNSS[including BeiDou Navigation Satellite System(BDS)]information with the corresponding equipment can be embedded into a machine to make it intelligent.Furthermore,the fused information of 5G and GNSS together with the environment information may extend human perception and physical world control ability in terms of time and space scale.It will help to develop critical information infrastructure in the age of intelligence,which will also extend the definition of artificial intelligence.Additionally,the“5G+BDS/GNSS”fusion path is analyzed explicitly herein in terms of realization methods,information processing,and new application services.On the whole,the application of“5G+BDS/GNSS+satellite-based communication”as a critical infrastructure for land,sea,air,space and network spatiotemporal control rights is proposed.

Geomatics for smart cities-concept,key techniques,and applications

The progressive transition from digital to smart cities has become a reality in recent years.Studies on the fundamental concept of smart cities,along with their supporting techniques,have attracted unprecedented attention.This study first discusses the concept of smart cities,where it is pointed out that the real city and the digital city can be integrated into a smart city by using ubiquitous sensor networks(USN)or the Internet of Things.More intelligent services for city management and public services can be provided in smart cities through massive and complex calculation,analysis,and data mining on cloud computing platforms.A smart city’s representative characteristics are summarized here to demonstrate that smart cities are superior for offering technical securities and intelligent services.Smart municipal supervision,smart transportation,smart environment monitoring,and smart tourism are used as examples to support the discussion.