Delay‐ or Disruption‐Tolerant Networking (DTN) is a communications approach that is utilized in easily disrupted or delayed networks. Examples of such networks are often found in heterogeneous networks, mobile or extreme terrestrial networks, and planned networks in space. In this paper, we examine the metropolitan bus network as a research target of DTN for a […]
May
May
DTN (Delay- or disruption- tolerant networking)is often found in heterogeneous networks, mobile or extreme terrestrial networks, or planned networks in space. In this paper,we examine the metropolitan bus network as a research target of DTN. We analyze the metropolitan bus network through spatial and temporal modeling by reusing the existing database of the Bus Information […]
May
ecent trend in the research of networking in defense development tends to communicate via DDS (Data Distribution Service)-based middleware, since target environments often integrate thousands of nodes through heterogeneous networks. Heterogeneous network often consists of wired and wireless coexisted network; however constructing DDS-based system in the wireless network is challenging work because recent DDS is […]
May
ISO/IEC 18000-7 Active RFID standard, a single channel system operating at 433 MHz, faces technical difficulties in supporting some recently introduced application demands because of its low transmission rates and vulnerability to radio interference between the readers. We propose a new multi-channel active RFID system operating at the 2.4 GHz band. The special feature of […]
Mar
In the upcoming ubiquitous computing environment, almost every object that needs to be identified will be attached to an radio frequency identification (RFID) tag. Omnipresent RFID tags lead to the concern that huge volumes of RFID data could easily overwhelm related networks and systems. However, for most applications, only a small subset of ID data […]
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