Welcome!
To use the personalized features of this site, please log in or register.
If you have forgotten your username or password, we can help.
|
 |
Solving Multiserver Systems with Two Retrial Orbits Using Value Extrapolation: A Comparative Perspective
| |
|
Solving Multiserver Systems with Two Retrial Orbits Using Value Extrapolation: A Comparative Perspective
Ma Jose Domenech-Benlloch19 , Jose Manuel Gimenez-Guzman20 , Vicent Pla19 , Vicente Casares-Giner19 and Jorge Martinez-Bauset19 
| (19) |
Dept. Comunicaciones, Universidad Politecnica Valencia, Cami de Vera, s/n, 46022 València, Spain |
| (20) |
Dept. Automatica, Universidad de Alcalá, 28871, Alcalá de Henares, Madrid, Spain |
Abstract
In communication networks that guarantee seamless mobility of users across service areas, reattempts occur as a result of
user behavior but also as automatic retries of blocked handovers. A multiserver system with two reattempt orbits is obtained
when modeling these networks. However, an exact Markovian model analysis of such systems has proven to be infeasible and resorting
to approximate methods is mandatory. To the best of our knowledge all the existing methods are based on computing the steady-state
probabilities. We propose another approach based on the relative state values that appear in the Howard equations. We compare
the proposed method with the most well-known methods appeared in the literature in a wide range of scenarios. The results
of the numerical evaluation carried out show that this solution outperforms the previous approaches in terms of both accuracy
and computation cost for the most common performance parameters used in retrial systems.
Keywords Wireless and Mobile Systems and Networks (WLAN - 2G-3G-4G) - Queueing Systems and Networks - Stochastic Models - Markov Models - Performance Modelling
Fulltext Preview (Small, Large)
 References secured to subscribers.
|
|
|
|
|
|