Gui, Yiming and Liu, Zilong and Yu, Lisu and Li, Chunlei and Fan, Pingzhi (2024) Novel Power-Imbalanced Dense Codebooks for Reliable Multiplexing in Nakagami Channels. IEEE Wireless Communications Letters, 13 (1). pp. 19-23. DOI https://doi.org/10.1109/LWC.2023.3314286 (In Press)
Gui, Yiming and Liu, Zilong and Yu, Lisu and Li, Chunlei and Fan, Pingzhi (2024) Novel Power-Imbalanced Dense Codebooks for Reliable Multiplexing in Nakagami Channels. IEEE Wireless Communications Letters, 13 (1). pp. 19-23. DOI https://doi.org/10.1109/LWC.2023.3314286 (In Press)
Gui, Yiming and Liu, Zilong and Yu, Lisu and Li, Chunlei and Fan, Pingzhi (2024) Novel Power-Imbalanced Dense Codebooks for Reliable Multiplexing in Nakagami Channels. IEEE Wireless Communications Letters, 13 (1). pp. 19-23. DOI https://doi.org/10.1109/LWC.2023.3314286 (In Press)
Abstract
This paper studies enhanced dense code multiple access (DCMA) system design for downlink transmission over the Nakagami-m fading channels. By studying the DCMA pairwise error probability (PEP) in a Nakagami-m channel, a novel design metric called minimum logarithmic sum distance (MLSD) is first derived. With respect to the proposed MLSD, we introduce a new family of power-imbalanced dense codebooks by deleting certain rows of a special non-unimodular circulant matrix. Simulation results demonstrate that our proposed dense codebooks lead to both larger minimum Euclidean distance and MLSD, thus yielding significant improvements of error performance over the existing sparse code multiple access and conventional unimodular DCMA schemes in Nakagami-m fading channels under different overloading factors.
Item Type: | Article |
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Uncontrolled Keywords: | Dense code multiple access (DCMA); pairwise error probability (PEP); minimum logarithmic sum distance (MLSD); Nakagami-m fading channel |
Divisions: | Faculty of Science and Health Faculty of Science and Health > Computer Science and Electronic Engineering, School of |
SWORD Depositor: | Unnamed user with email elements@essex.ac.uk |
Depositing User: | Unnamed user with email elements@essex.ac.uk |
Date Deposited: | 12 Sep 2023 12:28 |
Last Modified: | 23 Apr 2024 10:38 |
URI: | http://repository.essex.ac.uk/id/eprint/36370 |
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