Differential Spatial Modulation with Lattice Reduction Aided Pre-coding.
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| Title: | Differential Spatial Modulation with Lattice Reduction Aided Pre-coding. |
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| Authors: | Kim, Sangchoon1 (AUTHOR) sckim@dau.ac.kr |
| Source: | IETE Journal of Research. Feb2024, Vol. 70 Issue 2, p1142-1149. 8p. |
| Subjects: | Receiving antennas, Transmitting antennas, Error probability |
| Abstract: | This paper presents a pre-coding scheme for recently proposed differential spatial modulation (DSM) systems. It employs a lattice reduction (LR) aided pre-coding approach. An approximated upper bound on average bit error rate (BER) is semi-analytically derived. It is analytically shown that it can achieve a full diversity gain. That is, the performance analysis demonstrates that the LR-aided pre-coding DSM (LR-PDSM) systems with $ {N_T} $ N T transmit antennas and $ {N_R} $ N R receive antennas can achieve the maximum transmit diversity order of $ {N_T} $ N T . Meanwhile, it is well-known that the diversity order attained by the conventional zero-forcing (ZF) pre-coding is given as $ {N_T} - {N_R} + 1 $ N T − N R + 1. Simulation results verify the approximated theoretical analysis and show that LR-aided ZF pre-coding is capable of improving the BER performance of the conventional ZF pre-coding based DSM systems under the same spectral efficiency. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | This paper presents a pre-coding scheme for recently proposed differential spatial modulation (DSM) systems. It employs a lattice reduction (LR) aided pre-coding approach. An approximated upper bound on average bit error rate (BER) is semi-analytically derived. It is analytically shown that it can achieve a full diversity gain. That is, the performance analysis demonstrates that the LR-aided pre-coding DSM (LR-PDSM) systems with $ {N_T} $ N T transmit antennas and $ {N_R} $ N R receive antennas can achieve the maximum transmit diversity order of $ {N_T} $ N T . Meanwhile, it is well-known that the diversity order attained by the conventional zero-forcing (ZF) pre-coding is given as $ {N_T} - {N_R} + 1 $ N T − N R + 1. Simulation results verify the approximated theoretical analysis and show that LR-aided ZF pre-coding is capable of improving the BER performance of the conventional ZF pre-coding based DSM systems under the same spectral efficiency. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 03772063 |
| DOI: | 10.1080/03772063.2023.2224754 |
