Anticipation of ETX Metric to manage Mobility in Ad Hoc Wireless Networks

Sabrina Naimi 1 Anthony Busson 2 Véronique Vèque 3 Larbi Ben Hadj Slama 4 Ridha Bouallegue 4
2 DANTE - Dynamic Networks : Temporal and Structural Capture Approach
Inria Grenoble - Rhône-Alpes, LIP - Laboratoire de l'Informatique du Parallélisme, IXXI - Institut Rhône-Alpin des systèmes complexes
3 Division Télécoms et Réseaux - L2S
L2S - Laboratoire des signaux et systèmes : 1289
Abstract : When a node is moving in a wireless network, the routing metrics associated to its wireless links may reflect link quality degrada- tions and help the routing process to adapt its routes. Unfortunately, an important delay between the metric estimation and its inclusion in the routing process makes this approach inefficient. In this paper, we intro- duce an algorithm that predicts metric values a few seconds in advance, in order to compensate the delay involved by the link quality measurement and their dissemination by the routing protocol. We consider classical metrics, in particular ETX (Expected Transmission Count) and ETT (Expected Transmission Time), but we combine their computations to our prediction algorithm. Extensive simulations show the route enhance- ment as the Packet Delivery Ratio (PDR) is close to 1 in presence of mobility.
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Sabrina Naimi, Anthony Busson, Véronique Vèque, Larbi Ben Hadj Slama, Ridha Bouallegue. Anticipation of ETX Metric to manage Mobility in Ad Hoc Wireless Networks. Ad Hoc Now, Jun 2014, Benidorm, Spain. pp.29-42, ⟨10.1007/978-3-319-07425-2_3⟩. ⟨hal-01060325⟩



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