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This paper represents the design of Interference Resistant Multiple Access (IRMA), a novel cross layer protocol that can combat exposed terminals and exploit the concurrent transmissions in wireless networks, both helping in achieving higher throughput compared to the 802.11 standard and other recent protocols. By observing that nodes in current protocols waste transmission opportunities in two different...
Fieldbus has become one of the most active fields in industrial data bus area. However, fieldbus standards are not uniform at present, which brings many difficulties to different industrial control equipments from different manufacturers to connect their devices to others. CAN bus and Modbus bus are two kinds of more popular buses in industrial control systems. This paper analyses these two bus protocol,...
The Dynamic Traffic Information publish platform is a core component of the ITS information service system, which focuses on the function of retrieving ITS data from background servers and delivering them to the registered client terminators. The Intelligent Transportation System data format is characterized by its diversity and the complexity, and the traditional data representation cannot fulfill...
In recent years, the issues in web service security have been widely investigated and various security standards have been proposed. But most of these studies and standards focus on the access control policies for individual web services and do not consider the access issues in composed services. Consider a simple service chain where service s1 accesses s2, and s2, in turn, accesses service s3. The...
This paper presents the design and analysis of general packet radio service (GPRS)-wireless local area network (WLAN) mobility gateway (GWMG) for the integration of GPRS and WLANs. The interworking between GPRS and WLANs is achieved by the GWMG that resides on the border of GPRS and WLAN systems. The design goal is to minimize the modifications in GPRS and WLANs as both systems are already widely...
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