Results 21 to 30 of about 68,492,323 (167)
IEEE AccessIn this paper, we first propose a novel code rate optimized orthogonal frequency division multiplexing with index modulation (OFDM-IM) transceiver architecture based on new radio low-density parity-check (NR-LDPC) coding, referred to as Rate Optimization
Zijian Zeng, Huan Ma, Liang Lv
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Enhanced Coordinate Interleaved OFDM With Index Modulation
IEEE Access, 2017 Orthogonal frequency-division multiplexing with index modulation (OFDM-IM) has attracted much attention in recent years. In OFDM-IM, the information bits of a block are generally divided into several subblocks, each of which is further split into two ...
Yun Liu +5 more
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Subblocks Set Design Aided Orthogonal Frequency Division Multiplexing With All Index Modulation
IEEE Access, 2019 In recent years, OFDM with index modulation (OFDM-IM) has become a potential technique due to its improvement of diversity gain. In typical OFDM-IM schemes, incoming information bits are divided into two parts, symbols bits, and index bits.
Yuxin Shi +4 more
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Investigation of Blanking Nonlinearity in OFDM Systems [PDF]
, 2011 In this paper, we analyze the influence of a blanking nonlinearity onto OFDM systems in detail. We will derive closedform expressions for the signal degradation and the interference, which is introduced by the blanking nonlinearity.
Michael Schnell +5 more
core +1 more source
Optimal Mapper for OFDM With Index Modulation: A Spectro-Computational Analysis
IEEE Access, 2020 In this work, we present an optimal mapper for OFDM with index modulation (OFDM-IM). By optimal we mean the mapper achieves the lowest possible asymptotic computational complexity (CC) when the spectral efficiency (SE) gain over OFDM maximizes.
Saulo Queiroz +2 more
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OFDM-IM for Joint Communication and Radar-Sensing: A Promising Waveform for Dual Functionality
Frontiers in Communications and Networks, 2021 The demand for dual-functional wireless systems is on the rise as certain resources become more congested and scarce. Joint communication-radar (JCR) is a promising technology that is becoming very critical and growing in popularity, where communication ...
Mehmet Mert Şahin +5 more
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IEEE Access, 2017 Orthogonal frequency-division multiplexing (OFDM) with index modulation has been emerged as a promising technique for next-generation networks, where the specific activation pattern of the OFDM subcarriers is capable of conveying additional information ...
Tianqi Mao +3 more
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Space-Time Block Coded and IQ-interleaved TCM, TTCM, BICM and BICM-ID Assisted OFDM [PDF]
, 2003 Space-Time Block Coded (STBC) In-phase Quadrature-phase (IQ)-interleaved Coded Modulation (CM) schemes are proposed for Orthogonal Frequency Division Multiplexing (OFDM).
Ng, S.X. +5 more
core +2 more sources
New Design of Constellation and Bit Mapping for Dual Mode OFDM-IM
IEEE Access, 2019 Dual mode orthogonal frequency division multiplexing with index modulation (DM-OFDM-IM) is recently proposed, where the subcarriers within each subblock are divided into two groups, which are modulated by two distinguishable signal constellations.
Kee-Hoon Kim, Hosung Park
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Multi‐Dimensional Physical‐Layer Security via Digitally Mediated Space–Time Modulation
Advanced Science, EarlyView.Digitally mediated space–time modulation moves radiation control beyond hardware‐bound switching. Multiple information‐bearing and masking waveforms are jointly synthesized at baseband and coherently coupled to simple periodic time modulation, enabling programmable, independently directed multi‐beam radiation without increasing switching‐state ...
Kejin Chen +8 more
wiley +1 more source