Minimum-energy packet forwarding over lossy networks under deadline and reliability constraints - Inria - Institut national de recherche en sciences et technologies du numérique Accéder directement au contenu
Communication Dans Un Congrès Année : 2012

Minimum-energy packet forwarding over lossy networks under deadline and reliability constraints

Résumé

This paper studies minimum-energy packet forwarding over multi-hop lossy networks under deadline and reliability constraints. We assume a routing topology in the form of a directed graph with packet loss processes on links described by finite-state Markov chains, and formulate the forwarding problem as a finite-horizon constrained Markov decision process. We show that the minimum energy forwarding policy under hard deadline and reliability constraint can be computed using dynamic programming, and that the optimal forwarding policy is a randomized policy over two history-independent and deterministic policies. Closed-form optimal policies are derived for some particular scenarios. Numerical examples show that the transmission energy cost of achieving reliabilities close to the maximum can be significant when links are bursty. In addition, transmission power adjustments can further reduce energy cost. Finally, we develop simple heuristic policies with a good balance between transmission energy cost and reliability.
Fichier principal
Vignette du fichier
p224-zou.pdf (1.36 Mo) Télécharger le fichier
Origine : Accord explicite pour ce dépôt
Loading...

Dates et versions

hal-00763774 , version 1 (11-12-2012)

Identifiants

  • HAL Id : hal-00763774 , version 1

Citer

Zhenhua Zou, Mikael Johansson. Minimum-energy packet forwarding over lossy networks under deadline and reliability constraints. WiOpt'12: Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, May 2012, Paderborn, Germany. pp.224-231. ⟨hal-00763774⟩

Collections

WIOPT2012
34 Consultations
58 Téléchargements

Partager

Gmail Facebook X LinkedIn More