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      Nonlinear code design for joint energy and information transfer

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      Author
      Dabirnia, Mehdi
      Duman, Tolga M.
      Date
      2015-06
      Source Title
      IEEE International Conference on Communications, 2015
      Print ISSN
      1550-3607
      Publisher
      IEEE
      Pages
      4247 - 4252
      Language
      English
      Type
      Conference Paper
      Item Usage Stats
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      Abstract
      Harvesting energy from radio frequency signals along with transmitting data through them is appealing for different wireless communication scenarios such as RFID systems and implantable devices. In this paper, we propose a technique to design nonlinear codes for use in such systems taking into account both energy transmission and error rate requirements. Specifically, we propose using concatenation of a nonlinear trellis code with an outer low density parity check code. Via examples, we observe that our designed codes operate at SNRs 2.4dB away from information theoretic limits, and they outperform reference schemes of concatenating LDPC codes with nonlinear memoryless mappers and using classical linear block codes in a time switching mode. We note that it is possible to close the gap to the information theoretic limits further by more sophisticated receiver designs and more complex encoders. © 2015 IEEE.
      Keywords
      Joint energy and information transfer
      Low density parity check codes
      Nonlinear codes
      RF energy harvesting
      Permalink
      http://hdl.handle.net/11693/28518
      Published Version (Please cite this version)
      http://dx.doi.org/10.1109/ICC.2015.7248990
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