Results 61 to 70 of about 7,874 (186)
Soft-input iterative channel estimation for bit-interleaved turbo-coded MIMO-OFDM systems
South African Journal of Science, 2013 Bit-interleaved coded modulation (BICM) is a robust multiplexing technique for achieving multiplexing gain in multiple-input multiple-output (MIMO)-orthogonal frequency division multiplexing (OFDM) systems. However, in order to benefit maximally from the
Olutayo O. Oyerinde, Stanley H. Mneney
doaj +1 more source
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT In privacy protection of control systems, a trade‐off between control performance and privacy level is often pointed out. Our goal in this paper is to improve this trade‐off by shaping the frequency of noise added for privacy protection when the control objective is to track a reference signal, which is taken as a piece of information whose ...
Rintaro Watanabe +3 more
wiley +1 more source
A Next Generation Wireless Simulator Based on MIMO-OFDM: LTE Case Study
EURASIP Journal on Wireless Communications and Networking, 2010 The complexity of next generation wireless systems is growing exponentially. The combination of Multiple-Input Multiple-Output (MIMO) technology with Orthogonal Frequency Division Multiplexing (OFDM) is considered as the best solution to provide high ...
Juan J. Sánchez-Sánchez +3 more
doaj +2 more sources
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT The integration of low Earth orbit (LEO) satellite constellations with commercial aircraft communication systems presents critical challenges in maintaining continuous connectivity during dynamic flight conditions. Current geostationary satellite systems suffer from high round‐trip latency (>$$ > $$ 500 ms) and inadequate coverage at high ...
Raúl Parada +4 more
wiley +1 more source
Discretization and Continualization of MIMO Systems
IFAC Proceedings Volumes, 1993 Abstract New numerically robust algorithms are presented for converting linear continuous-time constant-parameter state models into equivalent discrete-time state models ( discretization ) as well as the reverse problem of determining continuous-time models to represent given discrete-time models ( continualization ).
Bingulac, Stanoje +1 more
openaire +2 more sources
Design of a flexible millimeter-wave MIMO antenna for 5G applications
Zhongguo Jianchuan YanjiuObjectiveTo address the issues of limited communication capacity, poor interference immunity, and inefficient use of space in ship communications, a flexible millimeter-wave multiple-input multiple-output (MIMO) antenna for 5G communication was developed.
Wendong YANG, Xihui ZHANG, Jia WANG
doaj +1 more source
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT Low Earth Orbit (LEO) satellite constellations offer unprecedented opportunities for global broadband connectivity but pose significant beamforming challenges due to rapid platform motion and stringent onboard hardware constraints. Fully digital architectures, while optimal in theory, remain impractical for satellite payloads, motivating ...
Mohammad Momani +2 more
wiley +1 more source
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT In this paper, the correlation learning estimation and adaptive reduction (CLEAR) of interference, an adaptive, blind and transparent interference compensation method applied in a wideband dual‐channel receiver, is studied for a pair of independent satellite multi‐connectivity links, using the same carrier frequency and signal bandwidth in use
Svilen Dimitrov
wiley +1 more source
Multiple ARQ Processes for MIMO Systems [PDF]
EURASIP Journal on Advances in Signal Processing, 2003 We propose a new automatic repeat request (ARQ) scheme for MIMO systems with multiple transmit and receive antennas. The substreams emitted from various transmit antennas encounter distinct propagation channels and thus have different error statistics.
Haitao Zheng +2 more
openaire +4 more sources
On Design of Protograph LDPC Codes for Large-Scale MIMO Systems
IEEE Access, 2020 Protograph low-density parity-check (LDPC) codes and large-scale multi-input multi-output (LS-MIMO) systems have achieved great interest with various practical applications.
Hieu D. Vu +3 more
doaj +1 more source