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ThinkMind // ICONS 2014, The Ninth International Conference on Systems // View article icons_2014_1_10_40017
A New Design Process to Reduce Resource Usage in SDR Systems
Authors: Sameh Yassin Islam R Kamel Hazim Tawfik Keywords: computational accuracy; finite precision; software defined radio; signal processing; USRP Abstract: Software Defined Radio (SDR) is a recent trend in communication systems. Its primary goal is to flexibly handle different technologies using the same hardware platform by applying different software. To achieve this goal efficiently, the resource utilization should be minimized by implementing algorithms in fixed point arithmetic. This work is focused on the minimization of resource utilization by reducing the data width of the mathematical quantities inside the receiver chain. A design process is proposed to optimize the computational accuracy. The design process is used to link system performance and computational accuracy using simulation. The simulation approach is chosen because of its ability to cope with functional changes in SDR systems, and to satisfy the short time to market requirement. To verify the results, a case study is considered by reducing the resource usage in the SDR platform known as Universal Serial Radio Peripheral (USRP). The functions with highest resource utilization are implemented in fixed point. In addition, the optimized functions within the case study are implemented using Hardware Description Language (HDL) on a Field Programmable Gate Array (FPGA), to verify experimentally the reduction in resource utilization due to the proposed design process. Pages: 1 to 5 Copyright: Copyright (c) IARIA, 2014 Publication date: February 23, 2014 Published in: conference ISSN: 2308-4243 ISBN: 978-1-61208-319-3 Location: Nice, France Dates: from February 23, 2014 to February 27, 2014
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