Design Trade-offs for Decentralized Baseband Processing in Massive MU-MIMO Systems
Design Trade-offs for Decentralized Baseband Processing in Massive MU-MIMO Systems
复制标题
大规模 MU-MIMO 系统中分散式基带处理的设计权衡
DOI：
10.1109/ieeeconf44664.2019.9048727
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Studer, Christoph
中科院分区：
文献类型：
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作者：
Li, Kaipeng;McNaney, James;Tarver, Chance;Castaneda, Oscar;Jeon, Charles;Cavallaro, Joseph R.;Studer, Christoph
大规模多用户（MU）多输入多输出（MIMO）通过空间复用和细粒度波束形成提供了高频谱效率。然而，对于依赖集中式基带处理的具有数百个天线的系统来说，传统的基站（BS）架构不可避免地存在以下问题：(i)射频电路和处理结构之间的互连数据速率过高，以及（ii）集中式基带处理器过于复杂。近年来，分布式基带处理（DBP）架构和算法被提出，缓解了互连带宽和复杂性瓶颈。本文系统地探讨了不同系统配置和信道条件下DBP架构错误率性能、计算复杂度和数据传输延迟之间的设计权衡。考虑到架构、算法和数值精度方面，我们提供了实用指南，以选择能够在上行和下行链路中实现大规模MU-MIMO的全部优势的DBP架构和算法。
Massive multi-user (MU) multiple-input multiple- output (MIMO) provides high spectral efficiency by means of spatial multiplexing and fine-grained beamforming. However, conventional base-station (BS) architectures for systems with hundreds of antennas that rely on centralized baseband processing inevitably suffer from (i) excessive interconnect data rates between radio-frequency circuitry and processing fabrics, and (ii) prohibitive complexity at the centralized baseband processor. Recently, decentralized baseband processing (DBP) architectures and algorithms have been proposed, which mitigate the interconnect bandwidth and complexity bottlenecks. This paper systematically explores the design trade-offs between error-rate performance, computational complexity, and data transfer latency of DBP architectures under different system configurations and channel conditions. Considering architecture, algorithm, and numerical precision aspects, we provide practical guidelines to select the DBP architecture and algorithm that are able to realize the full benefits of massive MU-MIMO in the uplink and downlink.
DOI：
10.1007/s11265-017-1313-z
发表时间：
2017-12
期刊：
Journal of Signal Processing Systems
影响因子：
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作者：
Michael Wu;Bei Yin;Kaipeng Li;C. Dick;Joseph R. Cavallaro;Christoph Studer
通讯作者：
Michael Wu;Bei Yin;Kaipeng Li;C. Dick;Joseph R. Cavallaro;Christoph Studer
DOI：
10.1109/isit.2017.8006699
发表时间：
2017-05
期刊：
2017 IEEE International Symposium on Information Theory (ISIT)
影响因子：
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作者：
Charles Jeon;Kaipeng Li;Joseph R. Cavallaro;Christoph Studer
通讯作者：
Charles Jeon;Kaipeng Li;Joseph R. Cavallaro;Christoph Studer
大规模 MU-MIMO 系统中分散式预编码的前馈架构
DOI：
10.1109/acssc.2018.8645086
发表时间：
2018
期刊：
and Computers
影响因子：
--
作者：
Li, Kaipeng;Jeon, Charles;Cavallaro, Joseph R.;Studer, Christoph
通讯作者：
Studer, Christoph