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Index Modulation Techniques for Next-Generation Wireless Networks

open access: yesIEEE Access, 2017
What is index modulation (IM)? This is an interesting question that we have started to hear more and more frequently over the past few years. The aim of this paper is to answer this question in a comprehensive manner by covering not only the basic ...
Ertugrul Basar   +5 more
doaj   +3 more sources

Dual-Mode Index Modulation Aided OFDM

open access: yesIEEE Access, 2017
Index modulation has become a promising technique in the context of orthogonal frequency division multiplexing (OFDM), whereby the specific activation of the frequency domain subcarriers is used for implicitly conveying extra information, hence improving
Tianqi Mao   +4 more
doaj   +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

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

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

A Semidefinite Relaxation Approach to OFDM-IM Detection in Rapidly Time-Varying Channels

open access: yesIEEE Access, 2018
In this paper, the signal detection of orthogonal frequency division multiplexing with index modulation (OFDM-IM) in the rapidly time-varying channel is studied.
Jianping Zheng, Hongmei Lv
doaj   +1 more source

Cluster Index Modulation for mmWave Communication Systems

open access: yesFrontiers in Communications and Networks, 2022
In this study, a novel cluster index modulation (CIM) scheme, which is based on indexing the available clusters in the environment, is proposed for future mmWave communication systems.
Mahmoud Raeisi   +3 more
doaj   +1 more source

Hierarchical Multi-Functional Layered Spatial Modulation

open access: yesIEEE Access, 2018
In pursuit of optimal index modulation -aided multiple-input multiple-output (MIMO) systems, where information is implicitly conveyed by relying on the on/off mechanism of the system's components in addition to the classical amplitude, phase, or ...
Ibrahim A. Hemadeh   +2 more
doaj   +1 more source

Enhanced Coordinate Interleaved OFDM With Index Modulation

open access: yesIEEE 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
doaj   +1 more source

Performance of OFDM-IM Under Joint Hardware Impairments and Channel Estimation Errors Over Correlated Fading Channels

open access: yesIEEE Access, 2017
Recent studies have proven the potential of orthogonal frequency division multiplexing with index modulation in improving the bit error rate performance and the spectral efficiency, where its performance is evaluated under the assumption of ideal ...
Asma Bouhlel   +3 more
doaj   +1 more source

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