Results 21 to 30 of about 32,388 (181)
Eight Element Multiple-Input Multiple-Output (MIMO) Antenna for 5G Mobile Applications
IEEE Access, 2019 This work presents a systematic design of high performance eight element antenna array for a 5G mobile terminal operating at 2.6/3.5 GHz bands. The proposed eight element slot antenna array based on unit monopole slot antenna embedded in the metal casing
Mujeeb Abdullah +2 more
doaj +1 more source
Initial and Post-Initial Code Acquisition in the Non-Coherent Multiple Input/Multiple Output Aided DS-CDMA Downlink [PDF]
, 2008 In this paper, we investigate the issues of both initial and post-initial acquisition schemes in the multiple-input/multiple-output (MIMO)-aided direct-sequence code-division multiple-access (DS-CDMA) downlink when communicating over spatially ...
Won, Seung, Won, SeungHwan, Hanzo, Lajos
core +1 more source
Analysis and Design of Channel Estimation in Multicell Multiuser MIMO OFDM Systems [PDF]
, 2014 This paper investigates the uplink transmission in multicell multiuser multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems. The system model considers imperfect channel estimation, pilot contamination (PC), and
Xu, Peng +3 more
core +1 more source
Micromachines, 2021 In this paper, a compact planar dual-band multiple-input and multiple-output (MIMO) antenna with high isolation is presented to satisfy the increasing requirements of wireless communication.
Rong Yang +5 more
doaj +1 more source
Study of Clustering Solutions for Scalable Cell-Free Massive MIMO
IEEE Access, 2023 In response to the requirements of 5G and beyond, cell-free systems have emerged to ensure uniform service throughout the area. However, the idea of having no cells leads to a considerably large monolithic system, which is not scalable.
Danaisy Prado-Alvarez +4 more
doaj +1 more source
Depth-first and breadth-first search based multilevel SGA algorithms for near optimal symbol detection in MIMO systems [PDF]
, 2008 The multilevel structure of the N-QAM modulation constellations is exploited to significantly reduce the complexity of the sequential Gaussian approximation (SGA) algorithm for near optimal symbol detection in spatial multiplexing multiple- input ...
Sandell, M +3 more
core +1 more source
Isolation Enhancement of Wide-Band MIMO Array Antennas Utilizing Resistive Loading
IEEE Access, 2019 In this paper, we propose the use of resistor-loaded paired parallel-coupled resonators (PCRs) for mutual coupling reduction and isolation enhancement in wideband MIMO array antennas.
Jung-Dong Park +2 more
doaj +1 more source
Design of Wideband Decoupling Antenna Pairs for 5G Portable Devices at N77/N78/N79 Bands
Micromachines, 2022 We proposed an antenna pair that is applicable for mobile terminals: a type of coupling feed planar antenna that has a size of 28×6 mm2, a wide band, coupling suppression and compact size.
Kaiwen Du +3 more
doaj +1 more source
ETRI Journal, 2020 In a wireless sensor network (WSN), the data transmission technique based on the cooperative multiple‐input multiple‐output (CMIMO) scheme reduces the energy consumption of sensor nodes quite effectively by utilizing the space‐time block coding scheme ...
Manish Kumar Singh, Syed Intekhab Amin
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Early Neighbor Rejection-Aided Tabu Search Detection for Large MIMO Systems
Applied Sciences, 2021 In this study, a low complexity tabu search (TS) algorithm for multiple-input multiple-output (MIMO) systems is proposed. To reduce the computational complexity of the TS algorithm, early neighbor rejection (ENR) and layer ordering schemes are employed ...
Uzokboy Ummatov +3 more
doaj +1 more source