Performance analysis of S-Aloha used as a random acces channel on mobile communications

This paper evaluates the effects of Rayleigh fading, shadowing, and spatial distribution of the Mobile Terminals (MTs) on the operating performance of Slotted Aloha (S-Aloha) used as a Random Access Channel (RACH). This paper also evaluates the capture probability in a channel exhibiting Rayleigh fading, shadowing, and the effect of spatial distribution of the MTs. In addition, this work presents a different version of the steady-sate probabilities of the Markov chain of S-Aloha considering capture effect. This article simulates the stabilization of S-Aloha by utilizing an algorithm that dynamically controls the retransmission probabilities. Finally, this paper presents a numerical analysis of these simulations and identifies the operating of parameters that have shown to degrade system response.

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Bibliographic Details
Main Authors: Covarrubias,D., Méndez,A., Vargas,C.
Format: Digital revista
Language:English
Published: Universidad Nacional Autónoma de México, Instituto de Ciencias Aplicadas y Tecnología 2005
Online Access:http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1665-64232005000100001
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