비동기 셀프리 대규모 MIMO-OFDM: 혼합 코히어런트 및 비-코히어런트 전송 방식 성능 분석
비동기 셀프리 mMIMO-OFDM 시스템에서 혼합 코히어런트 및 비-코히어런트 전송 방식을 사용하면 비동기 수신으로 인한 성능 저하를 효과적으로 완화하고 시스템 용량을 향상시킬 수 있습니다.
Asynchronous Cell-Free Massive MIMO-OFDM: Enhancing Performance Using Mixed Coherent and Non-Coherent Transmissions
This paper investigates the potential of mixed coherent and non-coherent transmissions to improve the downlink sum-rate of cell-free massive MIMO-OFDM systems experiencing asynchronous reception.
Hybrid Precoding with Per-Beam Timing Advance for Asynchronous Cell-free mmWave Massive MIMO-OFDM Systems: Mitigating Asynchronous Interference in Wide Area Coverage
This research paper proposes a novel per-beam timing advance (PBTA) hybrid precoding architecture to mitigate asynchronous interference in millimeter-wave (mmWave) cell-free massive multiple-input-multiple-output orthogonal frequency division multiplexing (CF-mMIMO-OFDM) systems, particularly in wide area coverage scenarios where timing offsets exceed the cyclic prefix range.
Phase Noise Mitigation in Uplink Cell-Free Massive MIMO OFDM Systems with Separate and Shared Local Oscillators
Phase noise (PN) from cost-efficient local oscillators (LOs) significantly impacts the performance of cell-free massive MIMO OFDM networks, and this paper proposes novel PN-aware channel estimation algorithms for both separate and shared LO scenarios to mitigate the performance degradation.
Performance Analysis and Deployment Optimization of User-Centric Cell-Free Massive MIMO Systems with Local Partial MMSE Precoding
This research paper investigates the performance and deployment optimization of a user-centric scalable cell-free massive MIMO system with local partial MMSE (LP-MMSE) precoding, utilizing large-dimensional random matrix theory to derive a deterministic equivalent for ergodic sum rate and develop a deployment optimization algorithm.
Cell-Free Massive MIMO mit Multi-Antennen-Nutzern und Phasenverschiebungen: Ein neuartiges teilweise kohärentes Übertragungsrahmenwerk
Die Arbeit präsentiert ein teilweise kohärentes Übertragungsrahmenwerk für Cell-Free Massive MIMO, das die Herausforderung der Phasenverschiebung unter den Zugriffspunkten bewältigt, um das volle Potenzial dieser Technologie zu entfalten.
Cell-Free Massive MIMO with Multi-Antenna Users and Phase Misalignments: A Novel Partially Coherent Transmission Framework
Cell-Free Massive MIMO technology can overcome phase misalignment challenges with a Partially Coherent Transmission Framework, improving data rates.
Cell-Free Massive MIMO with Multi-Antenna Users and Phase Misalignments: A Novel Partially Coherent Transmission Framework
部分的な整合伝送フレームワークを提案することで、セルフリー巨大MIMO技術の可能性を最大限に引き出す。
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