Results 61 to 70 of about 7,865 (179)

Comparative analysis of classification techniques and input-output patterns for monthly rainfall prediction

Water Science
Rainfall prediction is one of the crucial stages of the watershed management process. In this research, A comparison of the performance among Monte Carlo and Thomas Fiering, linear regression (LR), multiple linear regression (MLR), and SVM optimized by ...
Nadia Sedghnejad, Hamed Nozari, Safar Marofi   +2 more
doaj   +1 more source

Frequency-domain equalization for OFDMA-based multiuser MIMO systems with improper modulation schemes

EURASIP Journal on Advances in Signal Processing, 2011
In this paper, we propose a novel transceiver structure for orthogonal frequency division multiple access-based uplink multiuser multiple-input multiple-output systems.
Wu Yi, Lin Zihuai, Vucetic Branka, Cowan Colin, Fagan Anthony, Xiao Pei   +5 more
doaj  

Performance evaluation of frequency division duplex (FDD) massive multiple input multiple output (MIMO) under different correlation models. [PDF]

PeerJ Comput Sci, 2022
Abdul-Hadi AM, Abdulrazzaq Naser M, Alsabah M, Abdulhussain SH, Mahmmod BM.   +4 more
europepmc   +1 more source

Adaptive Multi-Node Multiple Input and Multiple Output (MIMO) Transmission for Mobile Wireless Multimedia Sensor Networks

Sensors, 2013
Mobile wireless multimedia sensor networks (WMSNs), which consist of mobile sink or sensor nodes and use rich sensing information, require much faster and more reliable wireless links than static wireless sensor networks (WSNs).
Cheolwoo You, Ji-Woong Choi, Sunghyun Cho   +2 more
doaj   +1 more source

Joint Design of Space-Time Transmit and Receive Weights for Colocated MIMO Radar

Sensors, 2018
Compared with single-input multiple-output (SIMO) radar, colocated multiple-input multiple-output (MIMO) radar can detect moving targets better by adopting waveform diversity.
Ze Yu, Shusen Wang, Wei Liu, Chunsheng Li   +3 more
doaj   +1 more source

MIMO Underwater Acoustic Communications in Ports and Shallow Waters at Very High Frequency

Journal of Sensor and Actuator Networks, 2013
Hermes is a Single-Input Single-Output (SISO) underwater acoustic modem that achieves very high-bit rate digital communications in ports and shallow waters. Here, the authors study the capability of Hermes to support Multiple-Input-Multiple-Output (MIMO)
Gaultier Real, Pierre-Philippe Beaujean, Pierre-Jean Bouvet   +2 more
doaj   +1 more source

Investigation of MIMO Channel Characteristics in a Two-Section Tunnel at 1.4725 GHz

International Journal of Antennas and Propagation, 2017
This paper presents results from a wide band single-input–single-output (SISO) and 16 × 16 virtual multiple-input–multiple-output (MIMO) measurement campaign at a center frequency of 1.4725 GHz in a 100-meter long tunnel laboratory which is terminated by
Rongchen Sun, David W. Matolak, Cheng Tao, Liu Liu, Zhenhui Tan, Tao Zhou   +5 more
doaj   +1 more source

Optical multiple input and multiple output (MIMO) in multimode fibre

, 2013
Recently, there has been a dramatic increase in the amount of data transmission within short range local area networks (LAN). Multimode fibre (MMF) is widely used in local area networks because of its coupling and alignment along with the low cost of related components. Graded index MMF has become common due to the reduction in pulse spreading; however,
openaire   +1 more source

Sparse Grassmannian Design for Noncoherent Codes via Schubert Cell Decomposition

IEEE Open Journal of the Communications Society
In this paper, we propose a method for designing sparse Grassmannian codes for noncoherent multiple-input multiple-output systems. Conventional pairwise error probability formulations under uncorrelated Rayleigh fading channels fail to account for rank ...
Joe Asano, Yuto Hama, Hiroki Iimori, Chandan Pradhan, Szabolcs Malomsoky, Naoki Ishikawa   +5 more
doaj   +1 more source