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Mobile payment protocols have become more and more popular with the rapid development of network and mobile phones technologies. It gradually changes the consuming behaviors of consumers. However, must of the existing mobile payment protocols can only support on-line transactions. Some provides off-line transactions but have the limitation of micro-payments only. A micro-payment allows only a very...
This paper mainly analyzes the impact of the maximum transmission unit (MTU) on application performance by using OPNET. Simulation models are created and amount of experiments for typical FTP applications are conducted. Based on comparisons with different MTU value and different scenarios corresponding to the FTP upload response time, optimal settings are found.
Data center interconnected by flexi-grid optical networks is a promising scenario to meet the high burstiness and high-bandwidth requirement of data center application, because flexi-grid optical networks can allocate spectral resources for applications in a dynamic, tunable and efficient control manner. Meanwhile, as centralized control architecture, the software defined networking (SDN) enabled...
We demonstrate for the first time enhanced software defined networking (eSDN) over elastic grid (eGrid) optical networks for data center service migration, the performance of which are first verified on our testbed with real prototypes.
We present a novel architecture for Cross Stratum Optimization of application and network resource with OpenFlow protocol. Several global load balancing strategies are proposed and demonstrated by experiments on Optical as a Service (OaaS) testbed.
Authentication with key agreement protocol (AKA) can provide mutual authentication and create a session key between two communication parties. In 2005, Chen and Yeh proposed an AKA protocol based on one-way hash function and exclusive-or (XOR) operations. Having the feature of fast processing, their protocol is more efficient than previously related works. However, we discover that Chen and Yeh¡¦s...
For saving energy and balancing the energy load among nodes, an energy-efficient data gathering algorithm (EDGA) based on clustering is proposed in this paper, which is used to gather data in wireless sensor networks. Firstly, the nodes compete for becoming a clusterhead according to residual energy and the distribution of neighbor nodes. Secondly, the clusterhead selects the active nodes according...
Internet Protocol Television (IPTV) is a promising technology which plays a key role in the triple play service over the next-generation networks (NGN). In NGNs, services are no longer bundled with transport networks; this feature opens a new window for researchers to develop innovative applications in the context of cloud computing. Specifically, in this research we demonstrate the concept of Communications-as-a-Service...
Kerberos is a well-known network authentication mechanism. Based upon Kerberos' model, Sun and Yeh proposed three user authentication and key establishment (UAKE) protocols with perfect forward secrecy (PFS). However, due to the use of public-key cryptosystem to implement UAKE, their protocols are not suitable for mobile devices, which have computational, power and storage constraints. Therefore,...
Onboard-diagnostic (OBD) system is developed to detect engine operation conditions for air-pollution monitoring. The diagnostic trouble code from vehicle microprocessor is generated resulting from a system error or malfunction. Based on a practical demand, this paper presents a modified system construction from vehicle surveillance technology for OBD data report in real time. A circuit system is designed...
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