Mitigating bit-synchronization errors in Huffman-coding-aided index modulation

Ye Liu, Justin Coon

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)
109 Downloads (Pure)


When utilizing all subcarrier activation patterns in the combinatorial index modulation (IM) scheme, existing techniques either fail to realize the maximum possible throughput enhancement or fail to address the bit-level synchronization issue (or error propagation) due to the variable-length nature of the index-domain codebook. To address these drawbacks, we propose using Huffman coding for IM together with two constellation mappings for the bandpass modulation. The proposed scheme induces no signal overhead and is applicable when the index-domain codebook has the maximum encoding rate. Simulations demonstrate the effectiveness of the proposed scheme in mitigating bit-level synchronization errors.
Original languageEnglish
Article number8588988
Pages (from-to)426 - 429
Number of pages4
JournalIEEE Communications Letters
Issue number3
Early online date25 Dec 2018
Publication statusPublished - Mar 2019
Externally publishedYes

Bibliographical note

© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.


  • Indexes
  • Throughput
  • Huffman coding
  • Synchronization
  • OFDM
  • Modulation


Dive into the research topics of 'Mitigating bit-synchronization errors in Huffman-coding-aided index modulation'. Together they form a unique fingerprint.

Cite this