In comparison to other communication networks, Vehicular Ad-hoc Networks (VANETs) have unique requirements with respect to applications, types of communication, self-organization and other issues. In order to meet these requirements, the structuring of functionalities into protocols and their interaction must be re-thought. The traditional approach of decomposition of functionality into protoco...

INTRODUCTION Modern computer networks are characterized by layered protocol architectures, allowing network designs to accommodate unlimited applications and interconnection techniques. This layered approach allows protocols to become modularized; that is, developed independently and put together with other protocols in such a way as to create one complete protocol. The recognized basis of prot...

System security is a key technology to the development and deployment of IT applications and services in a growing global network. Security is critical at various levels of the system. However, security solutions typically address a very specific vulnerability with little relation to the larger picture of secure information systems. Organisations have successfully implemented these solutions wi...

The snarpy cognitive robotics architecture is a new member of the family of GLAIR architectures that performs grounded reasoning and action on real and simulated robots. We employ the SNePS knowledge representation, reasoning, and acting system and the Pyro robotics toolkit. We describe the architecture together with the methodologies used to realize it. With the snarpy architecture, robotic ag...

Many organizations today have adopted business intelligence (BI) as a catalyst to meet specific business needs and to improve organizational effectiveness. Although BI has become more robust and pervasive, some organizations are still unable to maximize the return on their BI investments. One contributing reason is the lack of a good guiding BI architecture to support the implementation of such...

In this paper, we propose a synthesizable LDPC decoder IP core for the WiMAX system with high parallelism and enhanced errorcorrecting performance. By taking the advantages of both layered scheduling and fully-parallel architecture, the decoder can fully support multimode decoding specified in WiMAX with the parallelism much higher than commonly used partial-parallel layered LDPC decoder archit...

We propose a novel data collection architecture, called Ring-based Information Collection Architecture (RICA), for sensor networks. In the RICA scheme, sensors are organised into a ring. According to our study, the transmission delay time of data collection in a ring is only a half of that in PEGASIS, in which sensors are organised into a chain. We present a ring construction algorithm for RICA...

INTRODUCTION Today, users have access to a multitude of interactive systems, such as desktop computers, cell phones, and interactive whiteboards. However, all these systems are designed to be used mostly independently and are severely limited in their cross-system capabilities: applications are encapsulated by the system they run on and cannot easily transfer or extend their user interface (UI)...