RAPID prototyping, TELECOMMUNICATION, COST effectiveness, COMPUTER peripherals, and OPTICAL communications
This article describes the implementation of a prototype visible light communications system based on the IEEE 802.15.7 standard using lowcost commercial off-the-shelf analog devices. The aim of this article is to show that this standard provides a framework that could promote the introduction of applications into the market. Thus, these specifications could be further developed, reducing the gap between the industry and research communities. The implemented prototype makes use of software defined radio platforms to interface between the analog devices and the computer where the signal processing is performed. The use of this concept provides the system with enough flexibility and modularity to include new features in the prototype without requiring long development time. [ABSTRACT FROM AUTHOR]
WIRELESS communications, COMPUTER networks, TELECOMMUNICATION systems, TELECOMMUNICATION, and ENGINEERING
The proliferation of different wireless technologies has led to fragmentation of interfaces and APIs that are used to control and manage air interfaces and wireless links. The emergence of new networking and application concepts that support increasingly heterogeneous access methods, especially when combined with future cognitive radio technologies, significantly increase the already high complexity of development projects and software architectures. Dissimilar wireless interfaces also complicate the development of middleware components for higher layers of the protocol stack. In this article we present a new generic interface and API architecture that has been developed and prototyped in several different wireless platforms to address these problems. We introduce the basic framework of the architecture, and explain how generic and open interfaces can significantly lower development and deployment costs. The developed interface architecture can be seen as a lower level middleware, or as an enabling technology to implement different technology transparent network middlewares. We also briefly comment about prototyping and standardization status of technology. [ABSTRACT FROM PUBLISHER]
WIRELESS communications, TELECOMMUNICATION systems, CODE division multiple access, TELECOMMUNICATION, RADIO networks, and COMMUNICATION infrastructure
Wireless communication technology is constantly advancing with the primary objective being to improve the quality of service for the end user. Cognitive radio is a technology capable of advancing wireless communications to the next generation of intelligent devices. Integrating cognition into wireless applications such as dynamic spectrum access, radio resource management, wireless distributed computing, and even traditional protocol stacks has already been shown to provide benefits related to the communications quality of service. The majority of cognitive radio related research has been limited to theoretical frameworks and simulations or in a few cases, demonstrating prototype DSA devices on a small scale. In order to continue advancing in this area, larger-scale experiments that are reproducible and able to be moved beyond theoretical simulations are required. Virginia Tech has built a testbed for software-defined and cognitive radio related research for the purpose of rapid next-generation communication system prototyping using a medium scale size network of flexible wireless nodes. In this article we present the details of the development, design decision rationale, and deployment of this testbed in hopes that it will be both used by the research community, and duplicated and improved in order to further the development of the many different facets of cognitive radio research. [ABSTRACT FROM AUTHOR]
INTEGRATED software, TELECOMMUNICATION, COMPUTER architecture, RAPID prototyping, STRATEGIC planning, and EMBEDDED computer systems
Motorola Inc., extended its integrated hardware and software embedded computing solutions with the announcement of its first Application-Enabling Platform built on the Advanced Telecom Computing Architecture. The new AXP Basic Integrated Platform is designed to speed time to market and lower both manufacturing and life cycle costs for telecom equipment manufacturers. The new platform enables them to simplify and accelerate many of the tasks associated with building and deploying their next-generation products. By eliminating the integration tasks required with the building-block approach to development, equipment manufacturers can focus on the core competencies that set them apart from the competition. The AXP Basic Integrated Platform is a pre-integrated and validated solution with an operating environment.