On the performance of the SOMA-massive MIMO system with multi-user detection
| Autor: | Amirreza Kabiri, Mohammad Javad Emadi, Majid Nasiri Khormuji |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Quantitative Biology::Neurons and Cognition
business.industry Computer science Orthogonal frequency-division multiplexing MIMO Duplex (telecommunications) 020206 networking & telecommunications 02 engineering and technology medicine.anatomical_structure Single antenna interference cancellation Multi user detection Telecommunications link 0202 electrical engineering electronic engineering information engineering medicine Electronic engineering Soma Maximal-ratio combining Telecommunications business Computer Science::Information Theory |
| Zdroj: | CAMAD |
| DOI: | 10.1109/camad.2017.8031650 |
| Popis: | We study an uplink multi-user massive Multiple-Input Multiple-Output (MIMO) system employing Semi-Orthogonal Multiple-Access (SOMA) scheme. Two achievable sum-rates for the SOMA scheme are presented by use of Minimum Mean-Square Error (MMSE) channel estimation and Maximum Ratio Combining (MRC) for data detection with two detection strategies; Single-User Detection (SUD) and Successive Interference Cancellation (SIC). Through numerical results, performance of the SOMA scheme is compared with that of the conventional Time-Division Duplex (TDD) massive MIMO. To maximize the achievable sum-rates optimal number of served users and optimal power allocations are discussed. Finally, spectral and energy efficiencies of SOMA scheme with SUD and SIC are compared with those of TDD to highlight the performance improvements attainable by the SOMA scheme. |
| Databáze: | OpenAIRE |
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