| Autor: |
Narushan Pillay, Hongjun Xu |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
IEEE Access, Vol 11, Pp 81828-81837 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2169-3536 |
| DOI: |
10.1109/ACCESS.2023.3301499 |
| Popis: |
The $K$ -complex symbol Golden codeword-based modulation ( $K$ CSGC) scheme for multiple-input multiple-output systems has been recently proposed in the literature and is capable of achieving a high diversity order by transmitting the same $K$ complex symbols in each of $K$ time slots. In this paper, we investigate improving the spectral efficiency of a single-input multiple-output (SIMO) configuration of the scheme (SIMO- $K$ CSGC) by employing radio frequency (RF) mirror assisted media-based modulation (MBM). Three schemes are investigated: Scheme 1 employs the same RF mirror activation pattern (MAP) in each of $K$ time slots, Scheme 2 employs different MAPs in each of the $K$ time slots, while Scheme 3 employs different MAPs in a subset $k$ of the $K$ time slots. A joint detector based on the sorted symbol set sphere decoder and maximum-likelihood detection rule is presented and its computational complexity is analyzed. The bit error rate versus signal-to-noise ratio (SNR) curves show that there is a negligible penalty incurred in SNR gain when the spectral efficiency is increased by a few bits per channel use. For higher increases in spectral efficiency, the penalty increases but is less significant with increasing $K$ . Scheme 1 is found to be superior in terms of the error performance-spectral efficiency trade-off. The theoretical average bit error probability is derived for the SIMO- $K$ CSGC-MBM scheme and demonstrates a very close match with simulation results. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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