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An Analog (7,5) Convolutional Decoder in 65 nm CMOS for Low Power Wireless Applications

Författare:
Publiceringsår: 2011
Språk: Engelska
Sidor: 2881-2884
Publikation/Tidskrift/Serie: [Host publication title missing]
Dokumenttyp: Konferensbidrag

Sammanfattning

A complete architecture with transistor level simulation is

presented for a low power analog convolutional decoder in 65 nm CMOS.

The decoder core operates in the weak inversion (sub-VT) and realizes the

BCJR decoding algorithm corresponding to the 4-state tail-biting trellis of

a (7,5) convolutional code. The complete decoder also incorporates serial

I/O digital interfaces and current mode differential DACs. The simulated

bit error rate is presented to illustrate the coding gain compared to an

uncoded system. Our results show that a low power, high throughput

convolutional decoder up to 1.25 Mb/s can be implemented using analog

circuitry with a total power consumption of 84 μW. For low rate

applications the decoder consumes only 47 μW at a throughput of 250

kb/s.

Nyckelord

  • Electrical Engineering, Electronic Engineering, Information Engineering

Övriga

IEEE International Symposium on Circuits and Systems (ISCAS 2011), 2011
Published
  • Analog RF-lup-obsolete
  • Digital ASIC-lup-obsolete
  • Telecommunication Theory-lup-obsolete
  • ISSN: 2158-1525
  • ISSN: 0271-4310
  • ISBN: 978-1-4244-9473-6

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