Results 141 to 150 of about 194,846 (171)
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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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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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Narrowband IoT Data Transmission Procedures for Massive Machine-Type Communications [PDF]
IEEE Network, 2017 Accepted in IEEE Networks Magazine.
Pilar Andres-Maldonado +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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RACH performance in massive machine-type communications access scenario
2018 IEEE Wireless Communications and Networking Conference (WCNC), 2018With the increasing number of devices performing Machine-Type Communications (MTC), mobile networks are expected to encounter a high load of burst transmissions. One bottleneck in such cases is the Random Access Channel (RACH) procedure, which is responsible for the attachment of devices, among other things. In this paper, we performed a rich-parameter
Nibia Souza Bezerra +4 more
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Scalable Spectrum Access System for Massive Machine Type Communication
IEEE Network, 2018Future 5G networks aspire to enable new services with vastly different data rate, latency and scalability requirements. The consensus is that these new services will fall into three categories: eMBB, URLLC, and mMTC. Due to unique characteristics of these services and the limited availability of finite spectrum resources, 5G will need to carefully map ...
Beeshanga Abewardana Jayawickrama +3 more
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On the Satellite Role in the Era of 5G Massive Machine Type Communications
IEEE Network, 2018The fifth generation of mobile radio communication systems, dubbed 5G, has the challenge of coping with tremendous increases in data traffic volume and peak data rates, reduced latencies, along with improved energy-efficient transmissions and new use cases.
Stefano Cioni +3 more
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UL coverage enhancement for massive machine type communication in 5G
2018 20th International Conference on Advanced Communication Technology (ICACT), 2018Massive machine type communication (mMTC) is one key scenario in 5G deployment. Reducing the signaling overhead and enhancing the coverage are two important targets. To reduce the signaling overhead, UL grant free transmission is considered, where one user equipment (UE) transmits data directly on one resource unit within the preconflgured resource set
Dongyang Wang, Qingping Shi
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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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