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Systems of systems (SoS) are large-scale concurrent and distributed systems that are comprised of complex systems. SoS has been widely researched and developed in defense, air transport, medical and health management area. Applying SoS related ideas and methods in some engineering design work can be denoted as “System of Systems oriented (SoSed) design”. Based on this concept and method of distributed...
Volunteered Geographic Information (VGI) and Crowdsourcing are kinds of acquisition modes of geographic information, as well as information production and dissemination way with the development of information technology applications. In this paper, on the basis of analyzing application of VGI and crowdsourcing modes on disaster information management system, the disaster information management system...
Energy consumption problem in mobile personal communications recently becomes popular. Generally, the design and construction of mobile networks are appropriate for peak data traffic, so at leisure time and regions, base station resources will be wasted. Previous researches always tried to reduce the energy consumption of base stations, which takes up about 60% of the total consumption in WCDMA networks...
TransCom is a transparent computing platform based on a virtual disk system that supports heterogeneous services of the operating platform and their above applications. In TransCom, OS and software which run in the client are stored on the centralized servers, while computing tasks are carried out by the clients, so the server is the bottleneck of the system performance. This paper analyzes the characteristics...
Transparent computing separates computation and storage in different machines with a storage virtualization mechanism. In existing implementation, the user operating system needs to be modified to achieve storage virtualization. This paper presents a virtual machine-based network storage system for transparent computing, which uses a virtualized device model in service operating system to redirect...
One of the aims of Transparent Computing is that the users can invoke their personalized service without having to pay attention to irrelevant details such as their maintenance, security and management. In this case, the administrator has the requirement to check whether proper applications work in a proper hardware. Existing monitor methods are not suitable for applying to the transparent computing...
As improvement of wireless and mobile technologies such as FMIPv6 and mSCTP, mobile devices such as laptops and PDAs are widely used. We investigate existing Mobile IPv6 scheme such as FMIPv6 in network layer and mSCTP in transport layer and find that both of them have some defects for signaling cost in mobile IPv6 environment. So, we we make a potential change to mSCTP - combine add-IP message with...
We investigate existing mobile IPv6 scheme in network layer (e.g., FMIPv6) and in transport layer (e.g., mSCTP) again. We find that FMIPv6 easily causes packet forwarding process of access routers (ARs), buffering overhead, a few handover signaling costs and latencies. We also find that mSCTP can make the mobile client (MC) change its IP address dynamically without connectionless, but itpsilas handover...
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