Constant-Weight Convolutional Codes for Index Modulation
- The encoding of antenna patterns with generalized spatial modulation as well as other index modulation techniques require w-out-of-n encoding where all binary vectors of length n have the same weight w. This constant-weight property cannot be obtained by conventional linear coding schemes. In this work, we propose a new class of constant-weight codes that result from the concatenation of convolutional codes with constant-weight block codes. These constant-weight convolutional codes are nonlinear binary trellis codes that can be decoded with the Viterbi algorithm. Some constructed constant-weight convolutional codes are optimum free distance codes. Simulation results demonstrate that the decoding performance with Viterbi decoding is close to the performance of the best-known linear codes. Similarly, simulation results for spatial modulation with a simple on-off keying show a significant coding gain with the proposed coded index modulation scheme.
Author: | Daniel Nicolas BailonORCiD, Jürgen FreudenbergerORCiDGND, Volker KühnORCiD |
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ISBN: | 978-3-8007-5686-5 |
ISBN: | 978-3-8007-5688-9 |
Parent Title (English): | WSA 2021; 25th International ITG Workshop on Smart Antennas, 10 - 12 November 2021, Eurecom, French Riviera, hybrid |
Parent Title (German): | ITG-Fachbericht ; 300 |
Publisher: | VDE Verlag |
Place of publication: | Berlin ; Offenbach |
Document Type: | Conference Proceeding |
Language: | English |
Year of Publication: | 2021 |
Release Date: | 2022/01/11 |
Institutes: | Institut für Systemdynamik - ISD |
Relevance: | Keine peer reviewed Publikation (Wissenschaftlicher Artikel und Aufsatz, Proceeding, Artikel in Tagungsband) |
Open Access?: | Nein |