Results 41 to 50 of about 1,344,414 (278)
Dynamic Backoff Collision Resolution for Massive M2M Random Access in Cellular IoT Networks
IEEE Access, 2020 The deployment of machine-to-machine (M2M) communications on cellular networks provides ubiquitous services to Internet-of-Things (IoT) systems. Cellular networks have been chosen as the best infrastructure for M2M communications due to the wide coverage
Huda Dakhilallah Althumali +3 more
doaj +1 more source
Help from space: grant-free massive access for satellite-based IoT in the 6G era
Digital Communications and Networks, 2022 The Sixth-Generation (6G) standard for wireless communications is expected to realize ubiquitous coverage for massive Internet of Things (IoT) networks by 2030.
Neng Ye +3 more
doaj +1 more source
Massive Random Access with Common Alarm Messages
, 2019 The established view on massive IoT access is that the IoT devices are activated randomly and independently. This is a basic premise also in the recent information-theoretic treatment of massive access by Polyanskiy.
Kalør, Anders E. +3 more
core +1 more source
Massive M2M Access with Reliability Guarantees in LTE Systems
, 2015 Machine-to-Machine (M2M) communications are one of the major drivers of the cellular network evolution towards 5G systems. One of the key challenges is on how to provide reliability guarantees to each accessing device in a situation in which there is a ...
Madueno, German Corrales +3 more
core +1 more source
Characterization of Coded Random Access with Compressive Sensing based Multi-User Detection [PDF]
, 2014 The emergence of Machine-to-Machine (M2M) communication requires new Medium Access Control (MAC) schemes and physical (PHY) layer concepts to support a massive number of access requests.
Bockelmann, Carsten +4 more
core +2 more sources
Channel Estimation for mmWave Massive MIMO Based Access and Backhaul in Ultra-Dense Network
, 2016 Millimeter-wave (mmWave) massive MIMO used for access and backhaul in ultra-dense network (UDN) has been considered as the promising 5G technique. We consider such an heterogeneous network (HetNet) that ultra-dense small base stations (BSs) exploit ...
Dai, Linglong +2 more
core +1 more source
Massive MIMO Unsourced Random Access
, 2019 We consider an extension of the massive unsourced random access originally proposed by Polyanskiy to the case where the receiver has a very large number of antennas (a massive MIMO base station) and no channel state information is given to the receiver (fully non-coherent detection).
Fengler, Alexander +3 more
openaire +2 more sources
Massive MIMO, Non-Orthogonal Multiple Access and Interleave Division Multiple Access
IEEE Access, 2017 This paper provides an overview on the rationales in incorporating massive multiple-input multiple-output (MIMO), non-orthogonal multiple access (NOMA), and interleave division multiple access (IDMA) in a unified framework.
Chongbin Xu +4 more
doaj +1 more source
Improving Massive Access to IoT Gateways
Performance Evaluation, 2022 IoT networks handle incoming packets from large numbers of IoT Devices (IoTDs) to IoT Gateways. This can lead to the IoT Massive Access Problem that causes bu er overflow, large end-to-end delays and missed deadlines. This paper analyzes a novel tra c shaping method named the Quasi-Deterministic Tra c Policy (QDTP) that mitigates this problem by ...
Erol Gelenbe +2 more
openaire +1 more source
Grouping-Based Random Access Collision Control for Massive Machine-Type Communication
, 2017 Massive Machine-Type Communication (mMTC) is expected to be strongly supported by future 5G wireless networks. Its deployment, however, is seriously challenged by the high risk of random access (RA) collision. A popular concept is to reduce RA collisions
Han, Bin, Schotten, Hans D.
core +1 more source