论文标题
关于有限容量的无线电条纹的上行链路性能
On the Uplink Performance of Finite-Capacity Radio Stripes
论文作者
论文摘要
无细胞（CF）大量MIMO（MMIMO）是一项技术，它不仅可以增加5G的部署，还可以增加5G（B5G）无线网络的部署。但是，推出此类系统的成本可能很大。无线电条纹构成了一种有前途的解决方案，以降低的价格提供可伸缩性的潜力。本文研究了CF MMIMO系统的上行链路场景，该系统以有限的无线电条纹实现，该条纹集成了新颖的接入点（APS），完全利用了宏观多样性的好处。我们还分析了一种启发式比较（CNF）策略，该策略通过比较归一化的最小均值均方根误差（N-LMMSE）软估计，可以实现最佳的动态合作聚类，从而导致了以用户为中心的无线电条纹网络方法。为了最大限度地提高使用者上行链路频谱效率（SE），我们确保在有限的容量限制下，我们的解决方案可以保证比现有无线电条纹体系结构更好的性能，尤其是在系统尺寸增加时。
Cell-Free (CF) Massive MIMO (mMIMO) is a technology which can potentially augment not only the deployment of 5G, but also the deployment of beyond 5G (B5G) wireless networks. However, the cost for rolling out such systems may be significant. Radio stripes form a promising solution which offers the potential of scalability at a reduced price. This paper investigates the uplink scenario of a CF mMIMO system, implemented with a limited-capacity radio stripe which integrates a novel arrangement of access points (APs), fully exploiting macro-diversity benefits. We also analyze a heuristic Compare-and-Forward (CnF) strategy, which, by comparing normalized linear minimum mean square error (N-LMMSE) soft estimates, enables optimal dynamic cooperation clustering, thus leading to a user-centric radio stripe network approach. Aiming at maximizing the per-user uplink spectral efficiency (SE), we ensure that, under finite capacity constraints, our solution can guarantee better performance than existing radio stripe architectures, especially when system size increases.
