Results 91 to 100 of about 6,711 (206)

Sloppy-slotted ALOHA [PDF]

Random access signaling, which allows slotted packets to spill over into adjacent slots, is investigated. It is shown that sloppy-slotted ALOHA can always provide higher throughput than conventional slotted ALOHA. The degree of improvement depends on the
Crozier, Stewart N.
core   +1 more source

A Scalable Hybrid MAC Protocol for Massive M2M Networks

, 2013
In Machine to Machine (M2M) networks, a robust Medium Access Control (MAC) protocol is crucial to enable numerous machine-type devices to concurrently access the channel.
Cao, Xianghui, Chen, Jiming, Liu, Yi, Yuen, Chau   +3 more
core   +1 more source

Dynamic Frame Update Policy for UHF RFID Sensor Tag Collisions

Sensors, 2020
The current growing demand for low-cost edge devices to bridge the physical–digital divide has triggered the growing scope of Radio Frequency Identification (RFID) technology research.
Laura Arjona, Hugo Landaluce, Asier Perallos, Enrique Onieva   +3 more
doaj   +1 more source

Communication Patterns in Mean Field Models for Wireless Sensor Networks [PDF]

, 2015
Wireless sensor networks are usually composed of a large number of nodes, and with the increasing processing power and power consumption efficiency they are expected to run more complex protocols in the future.
Groote, Jan Friso, Linnartz, Jean-Paul, Talebi, Mahmoud   +2 more
core   +2 more sources

Adaptive Transmission Control Considering Available Channels Difference Among Terminals in Satellite IoT Systems Using CRDSA/IRSA

IEEE Access
The use of Low Power Wide Area (LPWA) networks in the 920-MHz band, which are compatible with terrestrial network devices, is being explored for a satellite Internet-of-Things (IoT) system.
Hiraku Okada, Kansuke Kumazawa, Munehiro Matsui, Koyo Tategami, Daisuke Goto, Kiyohiko Itokawa, Fumihiro Yamashita   +6 more
doaj   +1 more source

Millimeter Wave Ad Hoc Networks: Noise-limited or Interference-limited?

, 2015
In millimeter wave (mmWave) communication systems, narrow beam operations overcome severe channel attenuations, reduce multiuser interference, and thus introduce the new concept of noise-limited mmWave wireless networks.
Fischione, Carlo, Shokri-Ghadikolaei, Hossein   +1 more
core   +1 more source

Open-Loop Spatial Multiplexing and Diversity Communications in Ad Hoc Networks

, 2010
This paper investigates the performance of open-loop multi-antenna point-to-point links in ad hoc networks with slotted ALOHA medium access control (MAC).
Collings, Iain B., Louie, Raymond H. Y., McKay, Matthew R.   +2 more
core   +2 more sources

From 5G to 6G: Has the Time for Modern Random Access Come? [PDF]

, 2019
This short paper proposes the use of modern random access for IoT applications in 6G. A short overview of recent advances in uncoordinated medium access is provided, highlighting the gains that can be achieved by leveraging smart protocol design ...
Clazzer, Federico, Lazaro, Francisco, Liva, Gianluigi, Munari, Andrea, Popovski, Petar, Stefanovic, Cedomir   +5 more
core   +1 more source

Performance Analysis of a Novel Hybrid S-ALOHA/TDMA Protocol for Beta Distributed Massive MTC Access

Sensors, 2017
Simultaneous random access of massive machine type communications (MTC) devices are expected to cause congestion in the radio access network. Not only the performance of MTC, but the coexisting human to human (H2H) communications would also degrade ...
Nannan Sui, Youyun Xu, Cong Wang, Wei Xie   +3 more
doaj   +1 more source

Broadcast Coded Slotted ALOHA: A Finite Frame Length Analysis

, 2016
We propose an uncoordinated medium access control (MAC) protocol, called all-to-all broadcast coded slotted ALOHA (B-CSA) for reliable all-to-all broadcast with strict latency constraints.
Amat, Alexandre Graell i, Brannstrom, Fredrik, Ivanov, Mikhail, Popovski, Petar   +3 more
core   +1 more source