Mitigation of UE Antenna Calibration Errors via Differential STBC in Cell-Free Massive MIMO
Fuente:
arXiv
Salvato in:
| Autori principali: | , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2026
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866916013523599360 |
|---|---|
| author | Freitas, Marx M. M. Buzzi, Stefano |
| author_facet | Freitas, Marx M. M. Buzzi, Stefano |
| contents | This letter investigates the use of differential space-time block coding (DSTBC) to address antenna array calibration impairments at multi-antenna user equipment (UE) in the downlink (DL) of cell-free massive MIMO (CF-mMIMO) systems. We show that, by exploiting DSTBC, reliable DL communication can be achieved without explicit UE-side calibration or channel phase knowledge. Simulation results demonstrate that the proposed DSTBC-based transmission effectively mitigates the impact of antenna-dependent phase offsets, restoring near-coherent performance in CF-mMIMO networks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_08962 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Mitigation of UE Antenna Calibration Errors via Differential STBC in Cell-Free Massive MIMO Freitas, Marx M. M. Buzzi, Stefano Information Theory This letter investigates the use of differential space-time block coding (DSTBC) to address antenna array calibration impairments at multi-antenna user equipment (UE) in the downlink (DL) of cell-free massive MIMO (CF-mMIMO) systems. We show that, by exploiting DSTBC, reliable DL communication can be achieved without explicit UE-side calibration or channel phase knowledge. Simulation results demonstrate that the proposed DSTBC-based transmission effectively mitigates the impact of antenna-dependent phase offsets, restoring near-coherent performance in CF-mMIMO networks. |
| title | Mitigation of UE Antenna Calibration Errors via Differential STBC in Cell-Free Massive MIMO |
| topic | Information Theory |
| url | https://arxiv.org/abs/2603.08962 |