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An enhanced-MDP based vertical handoff algorithm for QoS support over heterogeneous wireless networks

conference contribution
posted on 2023-02-07, 00:41 authored by SA Sharna, MR Amin, Manzur MurshedManzur Murshed
Vertical handoff plays an important role in guaranteeing users to be always connected in an overlapped multi-network environment. During the vertical handoff procedure, handoff decision is the most important step that affects the normal working of communication. An incorrect handoff decision or selection of a non-optimal network may result in undesirable effects such as higher costs, poor quality of service (QoS) experience, and even dropped communication. Among the existing vertical handoff decision algorithms, the Markov Decision Process (MDP) based algorithm by Stevens-Navarro et al. is promising due to its ability to achieve the optimal expected reward. However, the reward function used by this algorithm is flawed as it favors reducing expected number of vertical handoffs at the expense of diminished expected values of other QoS parameters. This paper presents an extended MDP based algorithm (EMDP) with novel reward function formulation. Analysis shows that EMDP outperforms the MDP based algorithm in terms of improved expected values of all QoS parameters considered while keeping the vertical handoff number reasonably low. © 2011 IEEE.

History

Pagination

289-293

Location

MA, Cambridge

Start date

2011-08-25

End date

2011-08-27

ISBN-13

9780769544892

Language

English

Title of proceedings

Proceedings - 2011 IEEE International Symposium on Network Computing and Applications, NCA 2011

Event

10th IEEE International Symposium on Network Computing and Applications (NCA)

Publisher

IEEE COMPUTER SOC

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