Results 11 to 20 of about 1,506,345 (248)
Index Modulation–Aided Mixed Massive Random Access
Frontiers in Communications and Networks, 2021 In this study, a mixed massive random access scheme is considered where part of users transmit both common information and user-specific information, while others transmit only common information.
Zijie Liang, Jianping Zheng, Jie Ni
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Random Beam-Based Random Access for Low-Latency Device-to-Device Communication Systems
IEEE Access, 2020 In this paper, we consider a device-to-device communication system, where a multi-antenna mobile user directly communicates with nearby multiple devices, and propose a low-latency random access protocol utilizing random beams at the user.
Jung Hoon Lee, Yunjoo Kim, Il-Gu Lee
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D2D Assisted Q-Learning Random Access for NOMA-Based MTC Networks
IEEE Access, 2022 Machine-type communications (MTC) should account for half the connections to the internet by 2030. The use case massive MTC (mMTC) allows for applications to connect a massive number of low-power and low-complexity devices, leading to challenges in ...
Matheus V. da Silva +4 more
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Random access transport capacity [PDF]
IEEE Transactions on Wireless Communications, 2010 Submitted to IEEE Trans.
Jeffrey G. Andrews +3 more
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Quantum Random Access Memory [PDF]
Physical Review Letters, 2008 A random access memory (RAM) uses n bits to randomly address N=2^n distinct memory cells. A quantum random access memory (qRAM) uses n qubits to address any quantum superposition of N memory cells. We present an architecture that exponentially reduces the requirements for a memory call: O(log N) switches need be thrown instead of the N used in ...
GIOVANNETTI, VITTORIO +2 more
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Performance optimization for mMTC in 5G network with multiple random access schemes
物联网学报, 2022 To optimize the support for massive machine type communication (mMTC) services with different traffic characteristics, packet-based random access (PBRA) scheme coexists with the connection-based random access (CBRA) scheme in 5G networks.Yet, given the ...
Wen ZHAN +3 more
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Sliding Group Window with Rebacking off for Collision Avoidance in High-Efficiency Wireless Networks
Mathematics, 2021 It is difficult for wireless local area networks (WLANs), IEEE 802.11ax high-efficiency WLAN (HEW), to join next-generation innovations such as 5th generation (5G) and Internet of Things (IoT) because they still have their conventional channel access ...
Alaa Omran Almagrabi +4 more
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ERCIM News, 2015 ICLR submission, 17 pages, 9 figures, 6 tables (with bibliography and appendix)
Karol Kurach +2 more
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Fixed-Symbol Aided Random Access Scheme for Machine-to-Machine Communications
IEEE Access, 2019 The massiveness of devices in crowded Machine-to-Machine (M2M) communications brings new challenges to existing random-access (RA) schemes, such as heavy signaling overhead and severe access collisions.
Zhaoji Zhang, Ying Li, Lei Liu, Wei Hou
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Grant-Free Uplink Transmission With Multi-Codebook-Based Sparse Code Multiple Access (MC-SCMA)
IEEE Access, 2019 In sparse code multiple access (SCMA)-based grant-free (GF) access, both user's channel and the selected SCMA codebook (CB) are considered as a transmission signature for multi-user detection (MUD). In conventional SCMA-based grant-free (GF) access where
Ameha Tsegaye Abebe, Chung G. Kang
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