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Interactive TV (iTV) is a progress with friendly interaction for people. In particular, remote controller is always been designed for TV machine not TV programs or people. This is a serious restriction for the development of iTV service. However, many researches are usually based on "one audience" and one iTV service. It is fewer to consider multiuser interaction in a local environment. In fact, the situated interaction with family should be mentioned. A framework "VRDC-iTV" grounded on distributed computing is proposed in this study, which effectively utilizes external displays (TV or projector) and provides audiences to execute "varied remote operation" with their handheld devices in an iTV system, without any locating process. Furthermore, the development of iTV services could not be limited with "one remote controller". [ABSTRACT FROM AUTHOR]

WiMAX is a standards-based technology enabling the delivery of last mile wireless broadband access as an alternative to wired broadband like cable and DSL. WiMAX can provide mobile wireless broadband connectivity without the requirement for direct line-of-sight with a base station. With the development of wireless network, WiMAX has long transmission distance, wide coverage, high speed, multiple bands, and support of multi-media. In a populated environment, the network becomes unstable and there are broadcast storms because of interferences by excessive communications when many users are using their mobile devices for communications, file or audio/video sharing. Therefore, the devices are clustered based on their properties and capabilities, in order to reduce packet collisions and rapid energy consumptions by excessive broadcast. In this way, the lifecycle of the device will be prolonged and the network can be made more stable. [ABSTRACT FROM AUTHOR]

Recent advances in Wireless Sensor Networks (WSNs) have made them extremely useful in various applications. WSNs are susceptible to attack, because they are cheap, small devices and are deployed in open and unprotected environments. In this paper, we propose an Intrusion Detection System (IDS) created in Cluster-based Wireless Sensor Networks (CWSNs). According to the capability of Cluster Head (CH) is better than other Sensor Nodes (SNs) in CWSN. Therefore, a Hybrid Intrusion Detection System (HIDS) is designed in this research. The CH is used to detect intruders that not only decreases the consumption of energy, but also efficiently reduces the amount of information in the entire network. However, the lifetime of network can be prolonged by the proposed HIDS. [ABSTRACT FROM AUTHOR]

Today, the network bandwidth increased and hardware devices have continuously to enhanced, resulting the vigorous development of the internet. Nowadays, cloud computing is using the lowpower hosts to achieve high reliability that will be to ensure the ability to be better. However, the high capability most with high fault-tolerant by distributed systems, consensus problems will have an impact on the system node to complete the task of it. In previous works, consensus as a variety of connected networks is discussed with fallible components and is proposed a protocol to solve the consensus problem. In this paper, the consensus problem in topology of cloud computing is revisited. The proposed protocol, Dual Consensus Protocol for Cloud Computing (DCPCC), is supported to solve the consensus with malicious and dormant fault with transmission media. The DCPCC protocol can reach consensus with minimal rounds of message exchange and tolerate the maximal number of allowable components. [ABSTRACT FROM AUTHOR]

Along with information technology of flourishing, the popularization rate of the wireless communication equipment is higher and higher. However, WiMax is the one of new broadband wireless technologies. It can provide high data rate, large network coverage, and different application services. When large amount of users use these applications, the network may occur transmission collision and broadcast storm. The most important factor to cause this problem is the competition of communication bandwidth by different service requests. However, due to the limitation of communication channel, the OFDMA is used in this research to divide the channel into several sub-channels and those sub-channels can be provided for different users. In this research, a channel allocation mechanism is proposed. The channel is divided into reservation and dynamic by the allocation mechanism to enhance the utilization of channel and shorten the length of minislot. [ABSTRACT FROM AUTHOR]

An intelligent transportation system (ITS) incorporates a variety of equipment and devices that all work in mutual harmony. However, each piece of equipment or device has its data format and protocol. Therefore, they cannot directly exchange data with each other. In this research, a unified framework for data exchange in an ITS is proposed. The proposed mechanism serves to receive data from several equipments outside of cars, repackages the received data and then dispatches the data to devices inside the cars. Based on this framework, data in equipment and devices can be interchanged (with each other) to accomplish data sharing in an ITS. [ABSTRACT FROM AUTHOR]