Journal ArticleDOI
The requirements, challenges, and technologies for 5G of terrestrial mobile telecommunication
Shanzhi Chen,Jian Zhao +1 more
TLDR
In this article, the authors summarize the 5G mobile communication requirements and challenges and present a potential step change for the evolution toward 5G, which shows that macro-local coexisting and coordinating paths will replace one macrodominated path as in 4G and before.Abstract:
In this article, we summarize the 5G mobile communication requirements and challenges. First, essential requirements for 5G are pointed out, including higher traffic volume, indoor or hotspot traffic, and spectrum, energy, and cost efficiency. Along with these changes of requirements, we present a potential step change for the evolution toward 5G, which shows that macro-local coexisting and coordinating paths will replace one macro-dominated path as in 4G and before. We hereafter discuss emerging technologies for 5G within international mobile telecommunications. Challenges and directions in hardware, including integrated circuits and passive components, are also discussed. Finally, a whole picture for the evolution to 5G is predicted and presented.read more
Citations
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Journal ArticleDOI
5G-Based Systems Design for Tactile Internet
Li Chong,Li Chih-Ping,Kianoush Hosseini,Soo Bum Lee,Jiang Jing,Wanshi Chen,Gavin Bernard Horn,Tingfang Ji,John Edward Smee,Junyi Li +9 more
TL;DR: This paper discusses the systems design of ultrareliable and low-latency communications (URLLC) in NR and LTE technologies, both belonging to the fifth-generation (5G) wireless technologies and outlines the 5G security landscape, major categories of attackers, and potential countermeasures.
Journal ArticleDOI
Effective Capacity of Licensed-Assisted Access in Unlicensed Spectrum for 5G: From Theory to Application
TL;DR: A new four-state semi-Markovian model is developed to capture transmission collisions, random backoffs, and lossy wireless channels of LAA in distributed heterogeneous network environments and reveals the concavity of the effective capacity in terms of transmit rate.
Journal ArticleDOI
How Many Small Cells Can Be Turned off via Vertical Offloading under a Separation Architecture
TL;DR: Numerical results show that about 50% SCs can be turned off on average under the predefined daily traffic profiles, and 10% more SCsCan be further turned off with inter-layer channel borrowing, which may help to improve network energy-efficiency.
Proceedings ArticleDOI
Proportional fairness-based power allocation and user set selection for downlink NOMA systems
TL;DR: This paper proposes a tree searching-based user set selection scheme in which the redundant user sets are removed by a delicately designed pruning method in order to provide proportional fairness in multi-user downlink NOMA systems.
Journal ArticleDOI
Beam-Space Multiplexing: Practice, Theory, and Trends, From 4G TD-LTE, 5G, to 6G and Beyond
TL;DR: The future trends of beam-space multiplexing in 6G and beyond are discussed, including massive beamforming for extremely large-scale MIMO (XL-MIMO), low earth orbit (LEO) satellite communication, data-driven intelligentmassive beamforming, and multi-target spatial signal processing.
References
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Journal ArticleDOI
Device-to-device communication as an underlay to LTE-advanced networks
TL;DR: Device-to-device (D2D) communication underlaying a 3GPP LTE-Advanced cellular network is studied as an enabler of local services with limited interference impact on the primary cellular network.
Book
4G: LTE/LTE-Advanced for Mobile Broadband
TL;DR: In this article, the authors focus on LTE with full updates including LTE-Advanced to provide a complete picture of the LTE system, including the physical layer, access procedures, broadcast, relaying, spectrum and RF characteristics, and system performance.
Proceedings ArticleDOI
Practical, real-time, full duplex wireless
Mayank Jain,Jung-Il Choi,Taemin Kim,Dinesh Bharadia,Siddharth Seth,Kannan Srinivasan,Philip Levis,Sachin Katti,Prasun Sinha +8 more
TL;DR: Experimental results show that a re- design of the wireless network stack to exploit full duplex capability can result in significant improvements in network performance.
Book
Mobile Communications Engineering
TL;DR: In this article, the authors describe the characteristics of mobile radio signals and apply statistical communication theory to propagation and received signal characteristics, and provide a discussion of system performance and how to evaluate a new system.
Journal ArticleDOI
Encoding many channels on the same frequency through radio vorticity: first experimental test
Fabrizio Tamburini,Elettra Mari,Anna Sponselli,Bo Thid,Bo Thid,Antonio Bianchini,Filippo Romanato +6 more
TL;DR: In this paper, it was shown experimentally that two beams of incoherent radio waves, transmitted on the same frequency but encoded in two different orbital angular momentum states, can simultaneously transmit two independent radio channels.