Results 81 to 90 of about 16,098 (206)
An Adaptive Detector Implementation for MIMO-OFDM Downlink [PDF]
Proceedings of the 9th International Conference on Cognitive Radio Oriented Wireless Networks, 2014 Cognitive radio (CR) systems require flexible and adaptive implementations of signal processing algorithms. An adaptive symbol detector is needed in the baseband receiver chain to achieve the desired flexibility of a CR system. This paper presents a novel design of an adaptive detector as an application-specific instruction-set processor (ASIP).
Shahabuddin, Shahriar +4 more
openaire +2 more sources
IET Communications, Volume 19, Issue 1, January/December 2025.The transmission structure is designed to obtain the accurate channel state information in time‐varying environment. On this basis, communication performance of multiple‐input multiple‐output system is improved by symbol detection aided channel prediction.
Wei Gao +3 more
wiley +1 more source
BER performance analysis of OFDM-MIMO system using GNU Radio
MATEC Web of Conferences, 2016 Multiple Input Multiple Output (MIMO) channels can be used to increase the data rate and the channel capacity by employing multiple transmitting and receiving antennas at both the ends of a wireless communication system.
Singh M.Ushamahesh +2 more
doaj +1 more source
Fine‐grained multi‐path channel estimation and matched reception by single metasurface antenna
IET Communications, Volume 19, Issue 1, January/December 2025.This paper investigates methods to enhance antenna's channel information extraction capabilities in wireless communications, particularly in challenging multi‐path environments. Focusing on the issues of channel information loss due to multi‐path superposition at the receiver and multi‐path fading during wireless channel propagation, this paper ...
Yinuo Hao, Liang Jin, Shuaifang Xiao
wiley +1 more source
IEEE Access, 2019 Not only to reduce the candidates but also to maintain detection performance in multiple-input multiple-output (MIMO) detection, an adaptive overlapped cluster (AOC) scheme to balance detection error and computing cost is built for 4 × 4 and 8 ...
Yuan-Te Liao, Terng-Yin Hsu
doaj +1 more source
MMSE‐based passive beamforming for reconfigurable intelligent surface aided millimeter wave MIMO
IET Communications, Volume 19, Issue 1, January/December 2025.Passive beamforming at reconfigurable intelligent surface (RIS) in RIS‐aided millimeter wave multiple‐input multiple‐output (mmWave MIMO) is designed together with precoder and combiner through joint optimization problem to minimize the mean square error between the transmit signal and the estimate of signal at the receiver. The optimization problem is
Prabhat Raj Gautam +2 more
wiley +1 more source
Distributed Symmetric Turbo Coded OFDM Scheme Incorporated with STBC-MIMO Antennas for Coded-Cooperative Wireless Communication under Wideband Noise Jamming Environment [PDF]
RadioengineeringThis research paper proposes a novel anti-jamming technique based on a single-relay distributed symmetric Turbo coded orthogonal frequency division multiplexing (DSTC-OFDM) scheme.
A. M. A. Mirza +3 more
doaj
Energies, 2017 Large-scale (LS) multi-user (MU) multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) is considered to be a desirable signal transmission scheme because it can significantly improve the energy efficiency (EE) and spectral
Byung Moo Lee, Youngok Kim
doaj +1 more source
Wireless Information and Energy Transfer for Two-Hop Non-Regenerative MIMO-OFDM Relay Networks
, 2014 This paper investigates the simultaneous wireless information and energy transfer for the non-regenerative multipleinput multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) relaying system.
Fan, Pingyi +3 more
core +2 more sources
A squeeze‐and‐excitation network for SNR estimation of communication signals
IET Communications, Volume 19, Issue 1, January/December 2025.This paper presents a novel deep learning approach that uses a power spectrum generated through overlapping segmentation as input to a neural network for SNR estimation. The performance of SNR estimation has been enhanced by integrating an augmented squeeze‐and‐excitation (SE) attention mechanism with a residual block fusion module, employing multiple ...
Deming Hu +4 more
wiley +1 more source