The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Ongoing emphasis on the fourth industrial revolution requires further focus on the Internet of Things (IoT) as a means to integrate all relevant entities within a single technological system. In the integration process, a gateway to relay the raw data to an IoT endpoint is essential so that a joint interface among the heterogeneous domains can be provided. This work describes the development of a...
Rapid technological advancement has induced widespread adoption of smart, powerful and multi-purpose enduser devices (e.g., phones, tablets, set-top boxes, gaming console etc.) in our daily life. Unfortunately, the available mechanisms for accessing, configuring and controlling these devices are still primitive, and require physical access to the devices. Enabling remote access to these devices through...
Network Service providers have many worries about providing network services with an expandable, reliable, flexible and low-cost structure according to the expanding market environment. The current client-server system has various problems such as complexity and high costs in providing network services. On the contrary to this, this problem can be simply solved, if the Peer-to-Peer (P2P) communication...
Home network providers have many issues to resolve in providing home network services with an expandable, reliable, flexible, and low-cost structure to accommodate the expanding market environment. Current client-server systems have various problems, such as complexity and high costs to provide home network services. However, these problems can be simply solved by employing the P2P communication terminal...
Wireless sensor networks (WSNs) are expected to be deployed in various areas in the future for monitoring and interacting with the physical environment. The sensors are constraint devices, so 6LoWPAN is proposed by IETF to adapt IPv6 into the WSNs environment. However, due to the use of short address and compression, IPv6/IPv4 enabled devices cannot support the 6LoWPAN adaptation layer as well as...
Network protocols today play a major role in embedded software for industrial automation, with constant efforts to adapt existing device software to new emerging standards. In earlier work, we have proposed a compilation-based approach using a domain-specific language, Protege, which automatically generates protocol stack implementations in C from modular high-level descriptions. In this paper, we...
Recently, attentions are focused more on bus interior network application and the wireless bus-carry data transmission technology. For developing a remote monitoring system, three aspects of the system are discussed: the vehicle interior network configuration, the CAN/GPRS gateway realization and the remote monitoring server design. Described in the paper are the hardware and software design of the...
In this paper, a three-level P2P-SIP architecture employing SIP servers is proposed for the overlay network. The proposed architecture achieves global overlay and has the capability of solving the triangular routing problem for the domain-based P2P-SIP architecture to reach route optimization. Demonstrated by our numerical results, the proposed architecture can exhibit its superiorities over the closest-related...
New schemes such as SaaS and PaaS that let users access services over networks are widely used. Moreover, network operators must provide value-added services that enable service providers to create new services promptly and maintain performance as the number of service providers and users increases. To meet these requirements, we proposes a service gateway, which handles user messages (e.g., rewrites...
In recent years, IMS architectures standardized by 3GPP have gained importance as the key technologies for the Next Generation Network that will provide high quality services over an IP network. These systems are being put to practical use and are mainly maintained and operated by telecommunication operators. In the future, deployment of new IMS services such as an IMS-based IPTV service and IMS-based...
Network operators are in the process of adopting the IP Multimedia Subsystem (IMS) as their main underlying infrastructure which will in turn be used as a Service Delivery Platform (SDP). This process requires the migration of current services to their IMS counterparts, as well as a compatibility layer enabling successfull communication between IMS and other network infrastructures. Any and all functionality...
The paper introduces a pulse wave sensor position system based on ZigBee technology. The system is made up of remote server, reference nodes, gateway nodes, master nodes and many location nodes on human body. Location nodes collect pulse waves and position information, and transmit these information to master nodes from ZigBee network. The server finds those humans whose pulse waves are abnormal and...
Advancements in the MEMS technology, improved deployment strategies and sensor Web enablement standards, have facilitated the realisation of pervasive and ubiquitous computing through more and more sensor networks. Research community is straining hard to establish world wide sensor networks that may provide functionalities similar to those available through Internet and World Wide Web. A serious look...
SIP (Session Initiation Protocol) plays a very important role in softswitch which is the core technology of the NGN (Next Generation Network). NAT (Network Address Translator) traversal for SIP has been the exchange of operational impact on the rapid popularization of softswitch service. In this paper, we introduce SBC (Session Border Controller) and ALG (Application Level Gateway), which are recognized...
In this paper, we propose a hierarchical and heterogeneous P2P-SIP architecture, which is independent of the underlying DHT overlay and makes the combination of P2P and SIP practical. Peers who work in heterogeneous overlays, i.e. Chord, Kademlia and Pastry, can intercommunicate with other peers who are in different overlay via a decentralized manner provided by the hierarchical P2P-SIP architecture...
Both of SIP and H.323 are widely used in VoIP. H.323 has wonderful structure. With H.323, it is easy to establish and control a call. SIP is a text based protocol. Although it is simpler than H.323 in structure, its power is as great as H.323. These two protocols offer the same services and functions with different mechanism. So, it is important and significant to achieve their conversion.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.