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Proceedings Paper

An energy-efficient SIMD DSP with multiple VLIW configurations and an advanced memory access unit for LTE-A modem LSIs
Author(s): Mitsuru Tomono; Makiko Ito; Yoshitaka Nomura; Makoto Mouri; Yoshio Hirose
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Paper Abstract

Energy efficiency is the most important factor in the design of wireless modem LSIs for mobile handset systems. We have developed an energy-efficient SIMD DSP for LTE-A modem LSIs. Our DSP has mainly two hardware features in order to reduce energy consumption. The first one is multiple VLIW configurations to minimize accesses to instruction memories. The second one is an advanced memory access unit to realize complex memory accesses required for wireless baseband processing. With these features, performance of our DSP is about 1.7 times faster than a base DSP on average for standard LTE-A Libraries. Our DSP achieves about 20% improvement in energy efficiency compared to a base DSP for LTE-A modem LSIs.

Paper Details

Date Published: 8 December 2015
PDF: 9 pages
Proc. SPIE 9875, Eighth International Conference on Machine Vision (ICMV 2015), 98751T (8 December 2015); doi: 10.1117/12.2228814
Show Author Affiliations
Mitsuru Tomono, Fujitsu Labs., Ltd. (Japan)
Makiko Ito, Fujitsu Labs., Ltd. (Japan)
Yoshitaka Nomura, Fujitsu Labs., Ltd. (Japan)
Makoto Mouri, Fujitsu Labs., Ltd. (Japan)
Yoshio Hirose, Fujitsu Labs., Ltd. (Japan)

Published in SPIE Proceedings Vol. 9875:
Eighth International Conference on Machine Vision (ICMV 2015)
Antanas Verikas; Petia Radeva; Dmitry Nikolaev, Editor(s)

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