Low power baseband processor for IoT terminals with long range wireless communications

Shunyao Wu, Sungmoon Kang, Chaitali Chakrabarti, Hyunseok LEE

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

In this paper, we propose a new baseband architecture for Internet of Things (IoT) terminals that support long range communications such as those based on Orthogonal Frequency-Division Multiple Access (OFDMA) and spread spectrum technologies. We analyze the workload profiles of both systems and find that the frame detection unit has by far the highest computational load. Based on this analysis, we propose a simple architecture that uses only a scalar datapath. To optimize for low power consumption, we introduce application specific instructions that minimize register accesses and include address generation units for streamlined memory access. Preliminary synthesis results in 65nm node show that this architecture has an area of 0.204 μm2 and average energy consumption of 2.41 nJ/cycle when operated at 3MHz with supply voltage of 1.08 V.

Original languageEnglish (US)
Title of host publication2016 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2016 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages728-732
Number of pages5
ISBN (Electronic)9781509045457
DOIs
StatePublished - Apr 19 2017
Event2016 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2016 - Washington, United States
Duration: Dec 7 2016Dec 9 2016

Other

Other2016 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2016
CountryUnited States
CityWashington
Period12/7/1612/9/16

Keywords

  • Baseband processor
  • IoT
  • Long range communication
  • Low power

ASJC Scopus subject areas

  • Signal Processing
  • Computer Networks and Communications

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