Results 91 to 100 of about 184,691 (254)

DOA Estimation Based on Hybrid Digital and Analog Phase Alignment With Polynomial Rooting Approaches for Hybrid Massive MIMO Receive Array

open access: yesInternational Journal of Distributed Sensor Networks, Volume 2025, Issue 1, 2025.
This paper introduces a novel approach for direction of arrival (DOA) estimation utilizing hybrid digital and analog phase alignment (HDAPA) tailored for hybrid analog and digital massive multiple‐input multiple‐output (MIMO) receive arrays. To address the inherent high complexity associated with traditional HDAPA and analog phase alignment methods ...
Tsui-Ping Chang   +2 more
wiley   +1 more source

Hybrid Block Diagonalization for Massive Multiuser MIMO Systems [PDF]

open access: yesIEEE Transactions on Communications, 2015
For a massive multiple-input multiple-output (MIMO) system, restricting the number of RF chains to far less than the number of antenna elements can significantly reduce the implementation cost compared to the full complexity RF chain configuration.
Weiheng Ni, Xiaodai Dong
semanticscholar   +1 more source

Recent advances in multiuser MIMO systems [PDF]

open access: yesEURASIP Journal on Wireless Communications and Networking, 2011
We would like to welcome you to the Special Issue on Recent Advances in Multiuser MIMO Systems of the EURASIP Journal on Wireless Communications and Networking (JWCN). This issue has collected several research results on various aspects of multiuser MIMO systems including resource allocation, precoding and detection algorithms, limited feedback ...
Love David   +4 more
openaire   +2 more sources

MIMO‐OFDM Radar Systems for Ambiguity Control With Hybrid Range‐ and Doppler‐Division Multiplexing

open access: yesInternational Journal of Antennas and Propagation, Volume 2025, Issue 1, 2025.
Conventional multiple‐input multiple‐output orthogonal frequency division multiplexing (MIMO‐OFDM) radar systems typically adopt the equidistant subcarrier interleaving (ESI) scheme to generate orthogonal transmit (TX) waveforms in the frequency domain.
Xuanxuan Tian   +2 more
wiley   +1 more source

Novel Turbo Receiver for MU‐MIMO SC‐FDMA System

open access: yesETRI Journal, 2018
Single carrier‐frequency‐division multiple access (SC‐FDMA) has been adopted as the uplink transmission standard in fourth‐generation cellular networks to facilitate power efficiency transmission in mobile stations.
Hung‐Sheng Wang   +2 more
doaj   +1 more source

Prefiltering-based reduced rank multiuser detection in uplink generalized spatial modulation massive MIMO system

open access: yesEURASIP Journal on Advances in Signal Processing, 2023
Exploiting generalized spatial modulation in massive MIMO system, we develop an efficient uplink multiuser detection scheme. Different from the maximum likelihood detection algorithm, the spatial and temporal data in the proposed detection scheme are ...
Wei-Chiang Wu
doaj   +1 more source

Near-Instantaneously Adaptive HSDPA-Style OFDM Versus MC-CDMA Transceivers for WIFI, WIMAX, and Next-Generation Cellular Systems

open access: yes, 2007
Burts-by-burst (BbB) adaptive high-speed downlink packet access (HSDPA) style multicarrier systems are reviewed, identifying their most critical design aspects.
Choi, B.J., Hanzo, Lajos
core   +1 more source

Multiuser MIMO systems and interference avoidance [PDF]

open access: yes2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03)., 2004
We present the application of interference avoidance methods to multiuser systems with multiple inputs and multiple outputs. A general signal space formulation is used which makes the approach applicable to any MIMO system model regardless of the choice of basis functions.
D.C. Popescu, C. Rose
openaire   +1 more source

Internet of Things in Healthcare Research: Trends, Innovations, Security Considerations, Challenges and Future Strategy

open access: yesInternational Journal of Intelligent Systems, Volume 2025, Issue 1, 2025.
The Internet of Things (IoT) has become a transformative force across various sectors, including healthcare, offering new opportunities for automation and enhanced service delivery. The evolving architecture of the IoT presents significant challenges in establishing a comprehensive cyber‐physical framework. This paper reviews recent advancements in IoT‐
Attiq Ur Rehman   +11 more
wiley   +1 more source

Spatial Modulation Concept for Massive Multiuser MIMO Systems

open access: yesInternational Journal of Antennas and Propagation, 2014
This paper presents the concept of spatial modulation (SM) scheme for massive multiuser MIMO (MU-MIMO) system. We consider a MU-MIMO system where K users, each equipped with multiple antennas, are jointly serviced by a multiantenna base station ...
Khaled M. Humadi   +2 more
doaj   +1 more source

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