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Leveraging Multi-Core Processors in a CDMA-2000 SDR Base Station Steve Muir, John Chapin, Andrew Chiu, Victor Lum and Je

Leveraging Multi-Core Processors in a CDMA-2000 SDR Base Station Steve Muir, John Chapin, Andrew Chiu, Victor Lum and Jeremy Nimmer Vanu, Inc. http://www.vanu.com. 12 th Annual Workshop on High Performance Embedded Computing (HPEC) 23 rd – 25 th September, 2008 Lexington, MA.

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Leveraging Multi-Core Processors in a CDMA-2000 SDR Base Station Steve Muir, John Chapin, Andrew Chiu, Victor Lum and Je

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  1. Leveraging Multi-Core Processors in a CDMA-2000 SDR Base Station • Steve Muir, John Chapin, Andrew Chiu, Victor Lum and Jeremy Nimmer • Vanu, Inc. • http://www.vanu.com 12th Annual Workshop on High Performance Embedded Computing (HPEC) 23rd – 25th September, 2008 Lexington, MA Approved for public release; distribution is unlimited.

  2. Overview • Software Defined Radio (SDR) - implementing radio systems entirely in software rather than traditional hardware (discrete, ASIC, FPGA) • Vanu, Inc. – developing SDR since 1998 for commercial, government and military use • Our philosophy is to use high-level languages and general purpose processors to achieve high performance and portability at low cost • Current focus is the Anywave® multi-standard commercial SDR • Both GSM and CDMA-2000 in a single platform • Same approach applies from high capacity macrocells down to home femtocells • Performance of a CDMA-2000 base station • Moore’s Law continues to apply, yielding significant performance gains • Benefits seen primarily in # of CPU cores, also new functional units, e.g., SIMD (vector) instruction units

  3. SDR capacity gains due to Moore’s Law CDMA2000 1xRTT RC3 voice channels processed per core (physical layer modules only)

  4. Summary • Moore’s Law continues to deliver significant SDR performance growth • Number of processing units (cores) is now the primary metric that improves • SDR is a perfect candidate for running across multiple threads/cores • Comparing apples-to-apples (single core with SSE2 vector unit, ICC): • September 2003 6 CDMA voice channels • April 2007 16 CDMA voice channels • 3.5 years 2.5x capacity increase PER CORE • Number of cores in a cost-effective dual-CPU server • September 2003 2 cores • July 2008 8 cores (2x4, 12-core systems available by year end) • 5 years 4x – 6x ADDITIONAL INCREASE • Use of portable software that leverages Moore’s Law offers significant benefits to vendors and users of SDR

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