Software Defined Radio - A High Performance Embedded Challenge
报告人:
Trevor Mudge
The University of Michigan, Ann Arbor, IEEE Fellow
报告时间:
2007-05-31 09:00
报告地点:
清华大学FIT多功能厅
主办单位:
计算机科学与技术系
简介:
Abstract: Wireless communication protocols today have a computationally demanding workload that has to be supported by mobile terminals. The need for these terminals to be small and portable dictates a highly constrained energy budget. Traditionally these goals were satisfied by ASIC solutions. However, reusable hardware platforms and the need to interoperate between a wide range of protocols has led to research into programmable hardware platforms that can support these protocols in software. This talk will examine the computational requirements of the wideband code division multiple access (W-CDMA) protocol, which is one of the dominant third generation wireless standards. Our goal is to describe computational characteristics for the computer architect and to provide a high-level analysis of the architectural implications. We will present a programmable architecture that takes advantage of these characteristics. We will then show that it can be efficiently employed on very different wireless protocols that employ orthogonal frequency division multiplexing (OFDM) technology. OFDM is the basis for much of WiFi and is the choice for 4G proposals. We will conclude with remarks on a programming model for this class of domain specific machines, and observe that it is general enough to cover a broader class of embedded systems.
