Core Concepts
Proposing a two-stage compression approach for ZF beamforming weights in massive MIMO systems to alleviate eCPRI bandwidth constraints.
Abstract
The article discusses the challenges in downlink transmissions in massive MU-MIMO systems due to eCPRI capacity limitations. It introduces a novel two-stage compression approach targeting ZF beamforming weights. The first stage involves sparse Tucker decomposition, while the second stage utilizes complex givens decomposition and run-length encoding. The method aims to optimize downlink fronthaul bandwidth by compressing beamforming weights effectively.
Abstract:
Efficient data compression and reconstruction strategies are crucial in massive MIMO systems.
Capacity limitations of eCPRI fronthaul interface pose challenges for downlink transmissions.
Proposed two-stage compression approach targets ZF beamforming weights for alleviating bandwidth constraints.
Introduction:
MU-MIMO systems enhance 5G and B5G mobile communications.
Architecture of 5G/B5G base stations includes BBUs and RRUs interconnected via eCPRI.
Capacity limitations of eCPRI hinder downlink transmissions in massive MU-MIMO systems.
Proposed Compression Approach:
Two-stage compression method targeting ZF beamforming weights.
First stage: Sparse Tucker decomposition.
Second stage: Complex givens decomposition and run-length encoding.
Aims to optimize downlink fronthaul bandwidth in eCPRI environments.
Stats
가중 텐서의 저랭크 구성을 위해 희소 Tucker 분해를 사용합니다.
두 번째 단계에서는 복소 Givens 분해와 런-렝스 인코딩을 사용하여 구성 요소를 추가로 압축합니다.
Quotes
"Our approach specifically targets the Zero-Forcing (ZF) beamforming weights in BBUs."
"Through comprehensive evaluations, we demonstrate the superior effectiveness of our method in Channel State Information (CSI) compression."