Search · four archives
Search · four archives
14 papers · ranked by Valyu relevance
Kaipeng Li, Rishi Sharan, Yujun Chen, Tom Goldstein + 2 more
'Joseph R. Cavallaro' 'Christoph Studer'] Abstract—Achieving high spectral efficiency in realistic massive multi-user (MU) multiple-input multiple-output (MIMO) wireless systems requires computationally-complex algorithms for data detection in the uplink (users transmit to base-station) and beamforming in the downlink…
Kaipeng Li, James McNaney, Chance Tarver, Oscar Castañeda + 3 more
'Charles Jeon' 'Joseph R. Cavallaro' 'Christoph Studer'] Abstract—Massive multi-user (MU) multiple-input multipleoutput (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…
Charles Jeon, Kaipeng Li, Joseph R. Cavallaro, Christoph Studer
—Linear data-detection algorithms that build on zero forcing (ZF) or linear minimum mean-square error (L-MMSE) equalization achieve near-optimal spectral efficiency in massive multi-user multiple-input multiple-output (MU-MIMO) systems. Such algorithms, however, typically rely on centralized processing at the…
Zhenyu Zhang, Yuanyuan Dong, Keping Long, Xiyuan Wang + 1 more
—Decentralized baseband processing (DBP) architecture, which partitions the base station antennas into multiple antenna clusters, has been recently proposed to alleviate the excessively high interconnect bandwidth, chip input/output data rates, and detection complexity for massive multi-user multipleinput…
Kaipeng Li, Oscar Castañeda, Charles Jeon, Joseph R. Cavallaro + 1 more
'Christoph Studer'] Abstract—Massive multiuser (MU) multiple-input multipleoutput (MIMO) promises significant improvements in spectral efficiency compared to small-scale MIMO. Typical massive MU-MIMO base-station (BS) designs rely on centralized linear data detectors and precoders which entail excessively high…
Zeyan Zhuang, Xin Zhang, Dongfang Xu, Shenghui Song + 1 more
'Yonina C. Eldar'] Abstract—Centralized baseband processing (CBP) is required to achieve the full potential of massive multiple-input multipleoutput (MIMO) systems. However, due to the large number of antennas, CBP suffers from two major issues: 1) Tremendous data interconnection between radio frequency (RF) circuitry…
Xiaotong Zhao, Xin Guan, Mian Li, Qingjiang Shi
—Conventional uplink equalization in massive MIMO systems relies on a centralized baseband processing architecture. However, as the number of base station antenna increases, centralized baseband processing architectures encounter two bottlenecks, i.e., the tremendous data interconnection and the highdimensional…
Sébastien Roy
The seminal paper by Marzetta introduced the concept of massive MIMO (mMIMO) in 2010, generating immediate interest and numerous other papers (e.g., ). It is a departure from the previous multi-user MIMO (MU-MIMO) systems in that a large number of antennas at the base station serve a relatively small number of…
Soojin Cho, Jong-Woong Park, Sung-Han Sim, Leonhard Reindl
Wireless sensor networks (WSNs) facilitate a new paradigm to structural identification and monitoring for civil infrastructure. Conventional structural monitoring systems based on wired sensors and centralized data acquisition systems are costly for installation as well as maintenance. WSNs have emerged as a technology…
Randy Verdecia-Peña, José I. Alonso, Francesco Verde, Donatella Darsena
'Donatella Darsena'] Software defined radio (SDR) is a commonly used platform for its ease of operation and cost-effectiveness for the development and testing of real wireless communication systems. By supporting high transmission rates and enabling fast and cost-effective deployments, mainly in millimeter-wave…
Anis Ben Arfi, Fahmi Elsayed, Pouya M. Aflaki, Brad Morris + 1 more
'Fadhel M. Ghannouchi'] In this paper, a dual-branch topology driven by a Delta-Sigma Modulator (DSM) with a complex quantizer, also known as the Complex Delta Sigma Modulator (CxDSM), with a 3-level quantized output signal is proposed. By de-multiplexing the 3-level Delta-Sigma-quantized signal into two bi-level…
Debbrata K. Saha, Rogers F. Silva, Bradley T. Baker, Rekha Saha + 1 more
The examination of multivariate brain morphometry patterns has gained attention in recent years, especially for their powerful exploratory capabilities in the study of differences between patients and controls. Among many existing methods and tools for analysis of brain anatomy based on structural magnetic resonance…
Liu Yang, Dan Ding, Yang Cai, Rulei Han + 4 more
Conventional message-driven frequency-hopping (MDFH) systems are vulnerable to partial-band jamming, particularly when the jamming simultaneously affects both active and idle subcarriers, which disrupts energy-based detection. To address this limitation, this paper proposes a novel randomized intra-group subcarrier…
Ziliang Jia, Hongxia Liu, José de Jesús Rangel Magdaleno
The paper proposes an enhanced design for broadband digital receivers that aims to improve signal capture probability, real-time performance, and the hardware development cycle. To overcome the issue of false signals in the blind zone channelization structure, this paper introduces an improved joint-decision…