tailieunhanh - Báo cáo hóa học: "Signal Processing with Teams of Embedded Workhorse Processors"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Signal Processing with Teams of Embedded Workhorse Processors | Hindawi Publishing Corporation EURASIP Journal on Embedded Systems Volume 2006 Article ID 69484 Pages 1-16 DOI ES 2006 69484 Signal Processing with Teams of Embedded Workhorse Processors R. F. Hobson A. R. Dyck K. L. Cheung and B. Ressl School of Engineering Science Simon Fraser University Burnaby BC Canada V5A 1S6 Received 4 December 2005 Revised 17 May 2006 Accepted 17 June 2006 Recommended for Publication by Zoran Salcic Advanced signal processing for voice and data in wired or wireless environments can require massive computational power. Due to the complexity and continuing evolution of such systems it is desirable to maintain as much software controllability in the field as possible. Time to market can also be improved by reducing the amount of hardware design. This paper describes an architecture based on clusters of embedded workhorse processors which can be dynamically harnessed in real time to support a wide range of computational tasks. Low-power processors and memory are important ingredients in such a highly parallel environment. Copyright 2006 R. F. Hobson et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. INTRODUCTION Low cost networks have created new opportunities for voice over internet applications VoIP . High channel count voice signal processing potentially requires a wide variety of computationally demanding real-time software tasks. Also the third generation of cellular networks known as 3G cellular is deployed or being installed in many areas of the world. The specifications for wideband code division multiple access WCDMA are written by the third generation partnership project 3GPP to provide a variety of features and services beyond second generation 2G cellular systems. Similarly time division synchronous code division multiple access TD-SCDMA specifications have