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Nowadays multiple bus communication types are comprehensively employed to construct different networks in vehicles information system design. Data interchange among these networks must be conducted through complex communication gateways, which are difficult to test all the features wholly by manual work. MIC and RS422 communication networks are very common in some special vehicles, so in this paper...
Agile environmental monitoring is a novel style of environmental-monitoring development that lets you rapidly develop sensor devices and monitoring systems through trial and error during continuous sensing. The authors developed three environmental-monitoring systems and adapted them in situ based on actual field requirements. This article is part of a special issue on smart cities.
Increasing numbers of remotely accessed software applications are adopting Two Factor Authentication (TFA) methods, particularly when performing sensitive actions such as payment transactions. TFA methods, though addressed several weaknesses of purely password based authentication systems, have their own challenges such as their adverse effect on usability and, most notably, the operating cost. For...
VXLAN (Virtual extensible Local Area Network) is an edge-overlay model that uses L2-in-L3 tunneling protocol. It has attracted attentions for multi-tenant datacenter networks. For the deployment of VXLAN in legacy networks, networks can include VXLAN gateways which forward traffic between VXLAN and non-VXLAN environments. This paper proposes the design of VXLAN gateways which are not in servers, but...
Precision agriculture and agricultural decision making assistance have attracted researchers of engineering and agronomy as well as industries as a promising application of wireless sensor network (WSN) technology. However, agriculture is an industry with severe cost-cutting pressure and there is little advance guarantee that the WSN increases profit of farmers. Compared with other applications of...
TEC Digital is the e-learning platform used in Tecnológico de Costa Rica (TEC). This learning environment has a notification service via e-mail as main means of communication between teachers and students, but it does not guarantee that students receive and read their email on time. Faced with a need of more flexible communication channels on learning communities, we sought an alternative method to...
Community networks intrinsically rely on being able to deploy large scale projects with an explicit focus on cost effectiveness. As such, they often leverage not only open-source software, but also some proprietary solutions which, although closed source, may not command a licence fee. This paper briefly discusses an undergraduate project addressing a hardware solution integrating several open-source...
The session Initiation Protocol (SIP) is a widely used application-layer control protocol. The processing load of the SIP protocol is reportedly seen as one of the potential problems which may limit the range of its application although it has a number of advantages. Many research efforts have been made and have come up with various compression algorithms to reduce the packet size in order not to...
This paper describes a sample test implementation of an cost effective Voice over IP network. The implementation is currently taking place at Department of Microelectronics and Computer Science in Technical University of Lodz, Poland
Innovation in gateways for data gathering sensor networks has lagged compared to advances in mote-class devices, leaving us with a limited set of options for deploying such systems. In this paper we outline the system design of a gateway that meets the hardware and software demands of data gathering networks and present a prototype implementation of this design using the popular Stargate platform...
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