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| Content Provider | IET Digital Library |
|---|---|
| Author | Singh, Shivani Singh, Prem Vasudevan, Kasturi |
| Abstract | This study investigates the uplink performance of offset quadrature amplitude modulation (OQAM)-based orthogonal frequency division multiplexing (OFDM) waveform in single-cell multi-user massive multiple-input multiple-output (MIMO) systems over Ricean fading. An uplink training-based minimum mean square error (MMSE) channel estimation by exploiting the inherent characteristics of OFDM/OQAM waveform is briefly presented. By leveraging the second-order statistical characteristics of the intrinsic interference, the achievable uplink sum rates and corresponding closed-form approximations are derived in the presence of MMSE channel estimate at the base station with zero-forcing (ZF) and maximum-ratio combining (MRC) receivers. Based on the above analytical results for the uplink rates, power scaling laws are also investigated. The effect of Ricean-K factor on the achievable uplink sum rate is also examined analytically for both the MRC and ZF receivers. Numerical results compare the performance of OFDM/OQAM and classic cyclic-prefix OFDM-based massive MIMO systems and also validate the various analytical expressions derived in this work. |
| Starting Page | 1773 |
| Ending Page | 1782 |
| Page Count | 10 |
| ISSN | 17518628 |
| Volume Number | 14 |
| e-ISSN | 17518636 |
| Issue Number | Issue 11, Jul (2020) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/14/11 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2019.0913 |
| Journal | IET Communications |
| Publisher Date | 2020-03-31 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Achievable Uplink Sum Rate Approximation Theory Base Station Cellular Radio Channel Estimation Classic Cyclic-prefix OFDM-based Massive MIMO System Closed-form Approximations Communication Channel Equalisation And Identification Diversity Reception Electromagnetic Compatibility Interference Interpolation And Function Approximation Least Mean Squares Method Maximum-ratio Combining Receiver MIMO Communication MMSE Channel Estimate Mobile Radio System Modulation And Coding Method Multi-access System Multiple Access Communication Multiuser Massive MIMO–OFDM System Multiuser Massive MIMO–OQAM System Numerical Analysis OFDM Modulation Offset Quadrature Amplitude Modulation Orthogonal Frequency Division Quadrature Amplitude Modulation Radio Frequency Interference Radio Receiver Ricean Fading Ricean- K Factor Rician Channel Second-order Statistical Characteristic Single-cell Multiuser Massive Multiple-input Multiple-output System Statistical Analysis Statistics Uplink Rates Uplink Sum Rate Analysis Uplink Training-based Minimum Mean Square Error Channel Estimation Zero-forcing Receiver |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Computer Science Applications |
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