On multiple access random medium access control [PDF]
, 2009 In this paper, we develop a new class of medium access control protocol, which allows each user to transmit at different data rates chosen randomly from an appropriately determined set of rates.
Cui, Tao, Ho, Tracey
core +2 more sources
Non-Bayesian Activity Detection, Large-Scale Fading Coefficient Estimation, and Unsourced Random Access With a Massive MIMO Receiver [PDF]
IEEE Transactions on Information Theory, 2019 In this paper, we study the problem of user activity detection and large-scale fading coefficient estimation in a random access wireless uplink with a massive MIMO base station with a large number $M$ of antennas and a large number of wireless single ...
Alexander Fengler +3 more
semanticscholar +1 more source
Modern Random Access: An Age of Information Perspective on Irregular Repetition Slotted ALOHA [PDF]
IEEE Transactions on Communications, 2020 Age of information (AoI) is gaining attention as a valuable performance metric for many IoT systems, in which a large number of devices report time-stamped updates to a central gateway.
A. Munari
semanticscholar +1 more source
Tensor-Based Modulation for Unsourced Massive Random Access [PDF]
IEEE Wireless Communications Letters, 2020 We introduce a modulation for unsourced massive random access whereby the transmitted symbols are rank-1 tensors constructed from Grassmannian sub-constellations.
Alexis Decurninge +2 more
semanticscholar +1 more source
Random Access Game and Medium Access Control Design [PDF]
, 2010 Motivated partially by a control-theoretic viewpoint, we propose a game-theoretic model, called random access game, for contention control. We characterize Nash equilibria of random access games, study their dynamics, and propose distributed algorithms (
Chen, Lijun +2 more
core +3 more sources
Grant-Free Random Access in Machine-Type Communication: Approaches and Challenges [PDF]
IEEE wireless communications, 2020 Massive machine-type communication (MTC) is expected to play a key role in supporting Internet of Things (IoT) applications such as smart cities, smart factories, and connected vehicles through cellular networks. MTC is characterized by a large number of
Jinho Choi, Jie Ding, N. Le, Z. Ding
semanticscholar +1 more source
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
doaj +1 more source
A Robust Quantum Random Access Memory [PDF]
, 2012 A "bucket brigade" architecture for a quantum random memory of $N=2^n$ memory cells needs $n(n+5)/2$ times of quantum manipulation on control circuit nodes per memory call.
Hong, Fang-Yu +4 more
core +1 more source
Deep Learning-Based Cellular Random Access Framework
IEEE Transactions on Wireless Communications, 2021 Random access (RA) or preamble collision is one of the crucial problems in massive internet-of-things (IoT) at the network entry stage. Since a massive number of IoT nodes simultaneously attempt RAs on the same physical random access channel (PRACH ...
H. Jang +3 more
semanticscholar +1 more source
Unsourced Random Access With Coded Compressed Sensing: Integrating AMP and Belief Propagation [PDF]
IEEE Transactions on Information Theory, 2020 Sparse regression codes with approximate message passing (AMP) decoding have gained much attention in recent times. The concepts underlying this coding scheme extend to unsourced random access with coded compressed sensing (CCS), as first demonstrated by
V. Amalladinne +4 more
semanticscholar +1 more source