The increase of the wireless networks has created a significant growth in demand for portable devices with different types of services such as text processing, connectivity to different networks, remote data base access and multimedia processing. In order to respond to these requirements, a number of different hardware architectures have been proposed recently, designed principally to integrate useful characteristics such as high performance for multimedia functions, energy efficient handling, small size and a low complexity. This work presents a general analysis of several architectures designed principally for real time multimedia processing in mobile applications. This article describes the advantages of these architectures and raises comparison strategy among them.
KEY WORDSMobile Computing, real time multimedia processing, power management, multimedia applications.
RESUMENEl incremento de las redes inalám-bricas ha creado un significativo incremento en la demanda de dispositivos portátiles que integran diferentes tipos de servicios tales como procesamiento de texto, acceso a bases de datos remotas y procesamiento
Estudio e implementación de drivers para WiMAX (Worldwide Interoperability for Microwave Access) móvil en acompañantes móviles digitales
ABSTRACTThe accelerated progress in the moe accelerated progress in the mobile industry market has attracted a growing interest in research in the field of wireless communications technologies. Today, the applications and services demand highest connection data transmission rates. The 3G and WiMAX mobile technologies have been proposed to successfully achieve the speed + mobility tradeoff. As Mobile systems are constrained in processing resources, information storage and energy consumption, designers have to take all these characteristics into account when design a system of this type. The present paper is focused on the implementation of mobile systems using WiMAX technology. We study the standard and the required HW/SW resources for the implementation of a specific WiMAX device with the two embedded development systems based on iMXL and PXA-270 available processors. In this study we evaluated the complexity of the implementation of WiMAX connectivity for mobile devices in our local environment, taking into account the Hardware, Software and infrastructure limitations.
KEY WORDSWiMAX, WiMAX system profile, WiMAX certification profile, development system based on iMXL and
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.