Results 51 to 60 of about 4,021,406 (264)
A Novel Error Performance Analysis Methodology for OFDM-IM [PDF]
IEEE Wireless Communications Letters, 2019 An accepted letter by IEEE Wireless Communications ...
Shuping Dang +3 more
openaire +3 more sources
Performance evaluation of channel estimation techniques for a mobile fourth generation wide area OFDM system [PDF]
, 2002 In this paper channel estimation techniques for a mobile fourth generation coherent orthogonal frequency division multiplexing (OFDM) system are proposed. Coherent detection dictates that a per-subband estimate of the frequency response of the channel is
Nix, AR +5 more
core +1 more source
Achieving Transmit Diversity in OFDM-IM by Utilizing Multiple Signal Constellations
IEEE Access, 2017 Orthogonal frequency division multiplexing (OFDM) index modulation (IM) is a novel multicarrier modulation, which employs both the indices of the active subcarriers and conventional constellation symbols to convey information.
Jianping Zheng, Ru Chen
doaj +1 more source
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
doaj +1 more source
Overview on PAPR reduction techniques in OFDM-IM
Multidiszciplináris tudományok, 2022 This paper is concerned with the novel multicarrier transmission technique, Orthogonal Frequency Division Multiplexing (OFDM) based on Index Modulation (IM), which acts as an alternative for conventional OFDM. The system generally shows improvements over conventional OFDM in achieving lower bit error rate, higher spectral efficiency, and better energy ...
Bana Hassan Shekh Faraj +1 more
openaire +1 more source
An Optimized SLM for PAPR Reduction in Non-coherent OFDM-IM [PDF]
IEEE Wireless Communications Letters, 2020 5 pages, 1 ...
Sarath Gopi, Sheetal Kalyani
openaire +2 more sources
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
OFDM With Hybrid Number and Index Modulation
IEEE Access, 2020 A novel transmission scheme is introduced for efficient data transmission by conveying additional information bits through jointly changing the index and number of active subcarriers within each orthogonal frequency division multiplexing (OFDM) subblock.
Ahmad M. Jaradat +2 more
doaj +1 more source
New Zealand Journal of Agricultural Research, Volume 69, Issue 3, June 2026.This study aimed to estimate the fractionation of carbohydrates and crude protein (CP), and the ruminal degradation rates of dry matter (DM), CP, and neutral detergent fiber (NDF) in sorghum silages. Silages were prepared with or without the addition of 10% cottonseed cake (CSC, natural matter basis) and Weissella cibaria (W. cibaria).
Raiane B. Mendes +10 more
wiley +1 more source
IM-OFDM ISAC Outperforms OFDM ISAC by Combining Multiple Sensing Observations
IEEE Open Journal of Vehicular TechnologyIndex Modulated Orthogonal Frequency-Division Multiplexing (IM-OFDM) based Integrated Sensing and Communication (ISAC) is potentially capable of outperforming Orthogonal Frequency-Division Multiplexing (OFDM) ISAC, since Index Modulation (IM ...
Hugo Hawkins +3 more
doaj +1 more source