Results 31 to 40 of about 598 (135)

Coded Slotted ALOHA: A Graph-Based Method for Uncoordinated Multiple Access [PDF]

open access: yes, 2015
In this paper, a random access scheme is introduced which relies on the combination of packet erasure correcting codes and successive interference cancellation (SIC). The scheme is named coded slotted ALOHA.
Chiani, Marco   +2 more
core   +1 more source

Random Access in DVB-RCS2: Design and Dynamic Control for Congestion Avoidance

open access: yes, 2014
In the current DVB generation, satellite terminals are expected to be interactive and capable of transmission in the return channel with satisfying quality.
Meloni, Alessio, Murroni, Maurizio
core   +1 more source

Spatially-Coupled Random Access on Graphs [PDF]

open access: yes, 2012
In this paper we investigate the effect of spatial coupling applied to the recently-proposed coded slotted ALOHA (CSA) random access protocol. Thanks to the bridge between the graphical model describing the iterative interference cancelation process of ...
Chiani, Marco   +4 more
core   +1 more source

Prioritized Random MAC Optimization via Graph-based Analysis [PDF]

open access: yes, 2015
Motivated by the analogy between successive interference cancellation and iterative belief-propagation on erasure channels, irregular repetition slotted ALOHA (IRSA) strategies have received a lot of attention in the design of medium access control ...
Frossard, Pascal, Toni, Laura
core   +3 more sources

Optimum Header Positioning in Successive Interference Cancellation (SIC) based Aloha

open access: yes, 2013
Random Access MAC protocols are simple and effective when the nature of the traffic is unpredictable and sporadic. In the following paper, investigations on the new Enhanced Contention Resolution ALOHA (ECRA) are presented, where some new aspects of the ...
Clazzer, Federico, Kissling, Christian
core   +1 more source

On Frame Asynchronous Coded Slotted ALOHA: Asymptotic, Finite Length, and Delay Analysis [PDF]

open access: yes, 2016
We consider a frame asynchronous coded slotted ALOHA (FA-CSA) system for uncoordinated multiple access, where users join the system on a slot-by-slot basis according to a Poisson random process and, in contrast to standard frame synchronous CSA (FS-CSA),
Amat, Alexandre Graell i   +2 more
core   +2 more sources

On the Modeling and Performance Assessment of Random Access With SIC [PDF]

open access: yesIEEE Journal on Selected Areas in Communications, 2018
In this paper, we review the key figures of merit to assess the performance of advanced random access (RA) schemes exploiting physical layer coding, repetitions, and collision resolution techniques.
A. Mengali   +2 more
semanticscholar   +1 more source

Interference Calculation in Asynchronous Random Access Protocols using Diversity

open access: yes, 2015
The use of Aloha-based Random Access protocols is interesting when channel sensing is either not possible or not convenient and the traffic from terminals is unpredictable and sporadic.
Meloni, Alessio, Murroni, Maurizio
core   +1 more source

Heterogeneous N2O5 Uptake During Winter: Aircraft Measurements During the 2015 WINTER Campaign and Critical Evaluation of Current Parameterizations [PDF]

open access: yes, 2018
Nocturnal dinitrogen pentoxide (N2O5) heterogeneous chemistry impacts regional air quality and the distribution and lifetime of tropospheric oxidants.
Apel, Eric C.   +23 more
core   +2 more sources

Characterization of Coded Random Access with Compressive Sensing based Multi-User Detection [PDF]

open access: yes, 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

Home - About - Disclaimer - Privacy