Adaptive MAC Design for Heterogeneous Wireless Sensor Networks
type: Dataset
contact point: Organization
  fn: CCSD
keyword: heterogeneous
keyword: theses
keyword: mathmath-gmmathematics-mathgeneral-mathematics-mathgm
keyword: density
keyword: infoeu-reposemanticsdoctoralthesis
keyword: heterogenes
keyword: adaptive
keyword: wireless-sensor-networks
keyword: adaptatif
keyword: densite
keyword: reseaux-de-capteurs
keyword: mac
landing page: https://theses.hal.science/tel-00771767
description: In this PhD thesis, we consider heterogeneous Wireless Sensor Networks (WSNs) in which several sensing devices with different characteristics coexist. In contrast to a homogeneous sensor network, in heterogeneous networks different sensors may sense different physical phenomena generating traffic that have different characteristics such as monitoring temperature, pressure, and humidity. Moreover, also information criticality can be heterogeneous. Deployment of nodes also introduces heterogeneity in the network. Depending on the specific application in fact, initial deployment can be random with the result that the distribution of nodes across the playground may be non-homogeneous. In addition to this, other factors such as node death because of energy resource exhaustion, mobility, or generic fault influence the heterogeneity of the distribution of nodes. All these characteristics can be considered as sources of heterogeneity of a WSN. Heterogeneity conditions may evolve during time and space, therefore, the design of a heterogeneous sensor networks requires adaptive mechanisms able to react to different characteristics, which is difficult to achieve. The goal of the thesis is to investigate the problems related to heterogeneity of sources in WSNs to design adaptive MAC methods that are able to take into account heterogeneity variations and are energy-efficient. We focus on two sources of heterogeneity.First, we study the problem of multiple traffic sources with different characteristics and constraints. Providing differentiated Quality of Service (QoS) such as low latency and high delivery ratio in large and multi-hops networks is a challenge due to limited energy resources of nodes. To solve this problem we propose an adaptive MAC protocol based on the asynchronous preamble sampling (PS) approach, a simple energy saving MAC technique, coupled with the idea of using a rendezvous time for data transmission. The proposed protocol (Low-Latency MAC, LA-MAC), is able to…
identifier: NNT: 2012GRENM042
issued: 2026-05-15T11:34:42.821854
language: fr
modified: 2026-05-15T11:34:42.821860

Adaptive MAC Design for Heterogeneous Wireless Sensor Networks
type: Distribution
access URL: https://theses.hal.science/tel-00771767
format: HTML
issued: 2026-05-15T11:34:42.878050
modified: 2026-05-15T11:34:42.796285

test_moissonnage_selune
type: Agent