Results 21 to 30 of about 301,683 (298)

Index and Composition Modulation [PDF]

open access: yesIEEE Communications Letters, 2021
In this paper, we propose a novel modulation concept which we call \emph{index and composition modulation (ICM)}. In the proposed concept, we use indices of active/deactive codeword elements and compositions of an integer to encode information. In this regard, we first determine the activated codeword elements, then we exploit energy levels of these ...
Ferhat Yarkin, Justin P. Coon
openaire   +3 more sources

Hamming Distance Optimized Underwater Acoustic OTFS-IM Systems

open access: yesEntropy, 2023
The orthogonal time frequency space (OTFS) modulation technique can provide reliable communication in time-varying channels. Due to the dispersive characteristics of underwater acoustic channels, this paper proposes an OTFS-IM underwater acoustic ...
Xiaopeng Guo   +4 more
doaj   +1 more source

Capacity of coded index modulation [PDF]

open access: yes2015 IEEE International Symposium on Information Theory (ISIT), 2015
To appear in Proc. IEEE Int. Symp. Inf. Theory (ISIT) 2015, Hong Kong, Jun. 2015.
Natarajan Lakshmi Prasad   +2 more
openaire   +2 more sources

DCT-OFDM With Index Modulation [PDF]

open access: yesIEEE Communications Letters, 2017
In this letter, index modulation (IM) is proposed for OFDM systems based on a discrete cosine transform (DCT) implementation. The new DCT-OFDM-IM scheme is shown to yield spectral efficiency improvements of up to 38% relative to OFDM-IM and up to 55% relative to OFDM while occupying the same bandwidth and maintaining similar robustness against the ...
Chafii, Marwa   +2 more
openaire   +3 more sources

Super-Mode OFDM With Index Modulation [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2020
Orthogonal frequency division multiplexing (OFDM) with index modulation (OFDM-IM) appears as a promising multi-carrier waveform candidate for beyond 5G due to its attractive advantages such as operational flexibility and ease of implementation. However, OFDM-IM may not be a proper choice for 5G services such as enhanced mobile broadband (eMBB) since ...
Ali Tugberk Dogukan, Ertugrul Basar
openaire   +5 more sources

System-Level Assessment of a C-RAN based on Generalized Space–Frequency Index Modulation for 5G New Radio and Beyond

open access: yesApplied Sciences, 2022
Index modulation (IM) has been attracting considerable research efforts in recent years as it is considered a promising technology that can enhance spectral and energy efficiency and help cope with the rising demand of mobile traffic in future wireless ...
Vasco Velez   +6 more
doaj   +1 more source

Index coded PSK modulation [PDF]

open access: yes2016 IEEE Wireless Communications and Networking Conference, 2016
In this paper we consider noisy index coding problem over AWGN channel. We give an algorithm to map the index coded bits to appropriate sized PSK symbols such that for the given index code, in general, the receiver with large amount of side information will gain in probability of error performance compared to the ones with lesser amount, depending upon
Anjana Ambika Mahesh, B. Sundar Rajan
openaire   +2 more sources

Linear Precoded Index Modulation [PDF]

open access: yesIEEE Transactions on Communications, 2019
Index modulation (IM) is an attractive concept for next generation communication systems. However, as an emerging technique, there are still some challenges need to be tackled in this frontier. In this paper, we consider two aspects of IM, which are diversity and detection complexity.
Hongming Zhang 0001   +4 more
openaire   +4 more sources

Polar-Coded OFDM With Index Modulation

open access: yesIEEE Access, 2021
In this paper, we apply polar codes to a modified version of OFDM systems with index modulation which is called OFDM with in-phase/quadrature index modulation (OFDM-I/Q-IM).
Si-Yu Zhang, Behnam Shahrrava
doaj   +1 more source

Modulation of genetic associations with serum urate levels by body-mass-index in humans [PDF]

open access: yes, 2015
We tested for interactions between body mass index (BMI) and common genetic variants affecting serum urate levels, genome-wide, in up to 42569 participants.
Döring, Angela   +999 more
core   +3 more sources

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