Power Allocation and Low Complexity Detector for Differential Full Diversity Spatial Modulation Using Two Transmit Antennas
Differential full diversity spatial modulation (DFD-SM) is a differential spatial modulation scheme that makes use of a cyclic unitary M-ary phase shift keying (M-PSK) constellation to achieve diversity gains at both the transmitter and receiver. In this paper, we extend the power allocation concept...
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| Format: | Article |
| Language: | English |
| Published: |
Spolecnost pro radioelektronicke inzenyrstvi
2017-06-01
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| Series: | Radioengineering |
| Subjects: | |
| Online Access: | https://www.radioeng.cz/fulltexts/2017/17_02_0461_0469.pdf |
| _version_ | 1818276785314332672 |
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| author | K. Dwarika H. Xu. |
| author_facet | K. Dwarika H. Xu. |
| author_sort | K. Dwarika |
| collection | DOAJ |
| description | Differential full diversity spatial modulation (DFD-SM) is a differential spatial modulation scheme that makes use of a cyclic unitary M-ary phase shift keying (M-PSK) constellation to achieve diversity gains at both the transmitter and receiver. In this paper, we extend the power allocation concept of generalized differential modulation (GDM) to DFD-SM to improve its block-error rate (BLER). A novel power allocation scheme is formulated, and its optimum power allocation is derived. An asymptotic upper bound is presented for the new scheme and results are verified through Monte Carlo simulations. It can be seen that for a large enough frame length, the proposed scheme can almost achieve coherent performance. We also propose a low complexity detection scheme for DFD-SM. We evaluate the computational complexity of the maximum-likelihood (ML) detector and compare it to that of the proposed algorithm. It is shown that our scheme is independent of the constellation size. Numerical simulations of the BLER are presented, and it can be seen that the proposed scheme provides near ML performance throughout the entire signal-to-noise ratio (SNR) range with a complexity reduction of about 55% and 52% for one and two receive antennas respectively, in the high SNR region. |
| first_indexed | 2024-12-12T22:51:10Z |
| format | Article |
| id | doaj.art-26870878a03148c98f2b5e668795ac8f |
| institution | Directory Open Access Journal |
| issn | 1210-2512 |
| language | English |
| last_indexed | 2024-12-12T22:51:10Z |
| publishDate | 2017-06-01 |
| publisher | Spolecnost pro radioelektronicke inzenyrstvi |
| record_format | Article |
| series | Radioengineering |
| spelling | doaj.art-26870878a03148c98f2b5e668795ac8f2022-12-22T00:09:04ZengSpolecnost pro radioelektronicke inzenyrstviRadioengineering1210-25122017-06-01262461469Power Allocation and Low Complexity Detector for Differential Full Diversity Spatial Modulation Using Two Transmit AntennasK. DwarikaH. Xu.Differential full diversity spatial modulation (DFD-SM) is a differential spatial modulation scheme that makes use of a cyclic unitary M-ary phase shift keying (M-PSK) constellation to achieve diversity gains at both the transmitter and receiver. In this paper, we extend the power allocation concept of generalized differential modulation (GDM) to DFD-SM to improve its block-error rate (BLER). A novel power allocation scheme is formulated, and its optimum power allocation is derived. An asymptotic upper bound is presented for the new scheme and results are verified through Monte Carlo simulations. It can be seen that for a large enough frame length, the proposed scheme can almost achieve coherent performance. We also propose a low complexity detection scheme for DFD-SM. We evaluate the computational complexity of the maximum-likelihood (ML) detector and compare it to that of the proposed algorithm. It is shown that our scheme is independent of the constellation size. Numerical simulations of the BLER are presented, and it can be seen that the proposed scheme provides near ML performance throughout the entire signal-to-noise ratio (SNR) range with a complexity reduction of about 55% and 52% for one and two receive antennas respectively, in the high SNR region.https://www.radioeng.cz/fulltexts/2017/17_02_0461_0469.pdfSpatial Modulation (SM)differential spatial modulation (DSM)full transmit diversitymaximumlikelihood (ML) decodingcomputational complexity |
| spellingShingle | K. Dwarika H. Xu. Power Allocation and Low Complexity Detector for Differential Full Diversity Spatial Modulation Using Two Transmit Antennas Radioengineering Spatial Modulation (SM) differential spatial modulation (DSM) full transmit diversity maximumlikelihood (ML) decoding computational complexity |
| title | Power Allocation and Low Complexity Detector for Differential Full Diversity Spatial Modulation Using Two Transmit Antennas |
| title_full | Power Allocation and Low Complexity Detector for Differential Full Diversity Spatial Modulation Using Two Transmit Antennas |
| title_fullStr | Power Allocation and Low Complexity Detector for Differential Full Diversity Spatial Modulation Using Two Transmit Antennas |
| title_full_unstemmed | Power Allocation and Low Complexity Detector for Differential Full Diversity Spatial Modulation Using Two Transmit Antennas |
| title_short | Power Allocation and Low Complexity Detector for Differential Full Diversity Spatial Modulation Using Two Transmit Antennas |
| title_sort | power allocation and low complexity detector for differential full diversity spatial modulation using two transmit antennas |
| topic | Spatial Modulation (SM) differential spatial modulation (DSM) full transmit diversity maximumlikelihood (ML) decoding computational complexity |
| url | https://www.radioeng.cz/fulltexts/2017/17_02_0461_0469.pdf |
| work_keys_str_mv | AT kdwarika powerallocationandlowcomplexitydetectorfordifferentialfulldiversityspatialmodulationusingtwotransmitantennas AT hxu powerallocationandlowcomplexitydetectorfordifferentialfulldiversityspatialmodulationusingtwotransmitantennas |