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Enhanced Random Access for Massive-Machine-Type Communications
IEEE Internet of Things Journal, 2021In this article, we study a random access (RA) scheme to alleviate the RA channel (RACH) overload problem in the massive-machine-type communication (mMTC) environment. We first propose a timing advance-based preamble resource expansion (TAPRE) scheme which effectively increases preamble resources and reduces the preamble collision probability by ...
Byung-Hyun Lee 0001 +3 more
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A secure Device-to-Device communication scheme for massive Machine Type Communication
Computers & Security, 2021Abstract Massive Machine Type Communication (mMTC) services aims to provide universal connectivity to thousands of low-power, low-cost devices with the support of 5G cellular networks. Device to Device (D2D) communication under 5G cellular network envisages interaction among heterogeneous and previously un-associated devices with diverse requirements,
Probidita Roychoudhury +2 more
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IEEE Wireless Communications, 2014 Machine-to-machine wireless systems are being standardized to provide ubiquitous connectivity between machines without the need for human intervention.
Kan Zheng +2 more
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Pilot beamforming for massive machine type communication systems
2017 IEEE/CIC International Conference on Communications in China (ICCC), 2017In this paper, we propose a novel pilot beamforming and CSI acquisition strategy for machine-type-communication systems to achieve reduction in pilot overhead and improve the channel estimation performance. Key idea of the proposed beam-forming technique is to sparsify the time-domain channel vector using the beamforming.
Hyoungju Ji, Jun Won Choi, Byonghyo Shim
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IEEE Transactions on Vehicular Technology, 2020 A fundamental challenge of the large-scale Internet-of-Things lies in how to support massive machine-type communications (mMTC). This letter proposes a media modulation based mMTC solution for increasing the throughput, where a massive multi-input multi ...
Zhen Gao, Sheng Chen, Lajos Hanzo
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Practical Synchronization Waveform for Massive Machine-Type Communications
IEEE Transactions on Communications, 2019This paper proposes a practical synchronization waveform that is resilient to frequency error for machine-type communications with applications in massive Internet of Things (IoT). Mathematical properties of the waveform are derived, which are keys to addressing the practical issues.
Jingjing Zhang 0006 +2 more
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A Novel Waveform for Massive Machine-Type Communications in 5G
2017 IEEE Wireless Communications and Networking Conference (WCNC), 2017This paper proposes a novel waveform for the uplink of massive machine-type communications (mMTC) in 5G. It has a halved subcarrier spacing than that of the orthogonal frequency division multiplexing (OFDM) with a discrete cosine transform (DCT) matrix based precoder on the transmitter side. It can keep the subcarriers orthogonal in the real domain and
Fan Yang 0102, Xin Wang 0133
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Iterative List Detection and Decoding for Massive Machine-Type Communications
IEEE Transactions on Communications, 2020The main challenge of massive machine-type communications (mMTC) is the joint activity and signal detection of devices. The mMTC scenario with many devices transmitting data intermittently at low data rates and via very short packets enables its modelling as a sparse signal processing problem. In this work, we consider a grant-free system and propose a
Roberto B. Di Renna +1 more
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Introduction on Massive Machine-Type Communications (mMTC)
2019With the rise of a new round of scientific and technological revolutions and industrial changes in the world, the emergence of a large number of new applications, new businesses, new fields and new markets pose more requirements and challenges to existing mobile communication technologies [1].
Fanggang Wang, Guoyu Ma
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