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| Content Provider | IET Digital Library |
|---|---|
| Author | Zuo, Xingxuan Zhang, Jiankang Mu, Xiaomin Yang, Liang |
| Abstract | Massive multiple-input multiple-output (MIMO) systems with hundreds of correlated antennas at base station are capable of offering abundant spatial resources. When spatial-domain modulation is applied to these systems, the spatial modulation (SM) using only one radiofrequency chain benefits practical implementation, but suffers from significantly reduced multiplexing gain offered by the massive number of antennas. By contrast, the generalised SM (GSM) allows to simultaneously activate multiple transmit antennas, which improves spatial multiplexing gain, but degrades the achievable error performance, as its design pays no attention to the antenna correlation. The authors propose an antenna grouped SM (GrSM) scheme, which is capable of circumventing the shortcomings of both the SM and GSM schemes suffered in massive MIMO scenarios. In the proposed GrSM scheme, transmit antennas are partitioned into multiple groups, where the relatively strongly correlated antennas within individual groups are used to implement component SM schemes, while the relatively weakly correlated antennas in different groups are beneficial to obtain multiplexing gain. In order to further improve the spectral efficiency, adaptive modulation is integrated with GrSM to form the adaptive GrSM (AGrSM). The achievable error and spectral efficiency performance of GrSM and AGrSM systems are investigated based on both mathematical analysis and Monte-Carlo simulations, which are also compared with that of the conventional SM and GSM schemes, when massive MIMO communication scenarios are considered. Their studies and performance results show that GrSM is a promising transmit scheme for massive MIMO, which can outperform both the SM and GSM schemes. |
| Starting Page | 1241 |
| Ending Page | 1250 |
| Page Count | 10 |
| ISSN | 17518628 |
| Volume Number | 14 |
| e-ISSN | 17518636 |
| Issue Number | Issue 8, May (2020) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/14/8 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2019.0652 |
| Journal | IET Communications |
| Publisher Date | 2020-01-31 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Abundant Spatial Resources Achievable Error Performance Adaptive GrSM Adaptive Modulation AGrSM System Antenna Array Antenna Correlation Base Station Channel Correlation Communication Switching Component SM Scheme Conventional SM Generalised SM GrSM Scheme GSM Scheme Individual Groups Massive MIMO Communication Scenario Massive MIMO Scenario Massive MIMO System Mathematical Analysis MIMO Communication Modulation And Coding Method Monte Carlo Method Multiple Transmit Antenna Multiple-input Multiple-output System Multiplexing Promising Transmit Scheme Radio Link And Equipment Radiofrequency Chain Benefits Practical Implementation Reduced Multiplexing Gain Relatively Strongly Correlated Antenna Relatively Weakly Correlated Antenna SM Scheme Spatial Modulation Spatial Multiplexing Gain Spatial-domain Modulation Spectral Efficiency Performance Transmitting Antenna Wireless Channel |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Computer Science Applications |
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