Wireless sensor networks in industrial environment : energy efficiency, delay and scalability
type: Dataset
description: Some industrial applications require deterministic and bounded gathering delays. We focus on the joint time slots and channel assignment that minimizes the time of data collection and provides conflict-free schedules. This assignment allows nodes to sleep in any slot where they are not involved in transmissions. Hence, these schedules save the energy budjet of sensors. We calculate the minimum number of time slots needed to complete raw data convergecast for a sink equipped with multiple radio interfaces and heterogeneous nodes traffic. We also give optimal schedules that achieve the optimal bounds. We then propose MODESA, a centralized joint slots and channels assignment algorithm. We prove the optimality of MODESA in specific topologies. Through simulations, we show that MODESA is better than TMCP, a centralized subtree based scheduling algorithm. We improve MODESA with different strategies for channels allocation. In addition, we show that the use of a multi-path routing reduces the time of data collection .Nevertheless, the joint time slot and channels assignment must be able to adapt to changing traffic demands of the nodes (alarms, additional requests for temporary traffic) . We propose AMSA , an adaptive joint time slots and channel assignment based on incremental technical solution. To address the issue of scalability, we propose, WAVE, a distributed scheduling algorithm for convergecat that operates in centralized or distributed mode. We show the equivalence of schedules provided by the two modes.
identifier: NNT: 2014PA066029
issued: 2026-05-05T14:44:15.095484
language: en
modified: 2026-05-05T14:44:15.095488
contact point: Organization
  fn: CCSD
keyword: allocation-conjointe-de-slot-et-canaux
keyword: channel-allocation
keyword: collecte-de-donnees
keyword: convergecast
keyword: data-gathering
keyword: infoeu-reposemanticsdoctoralthesis
keyword: infoinfo-nicomputer-science-csnetworking-and-internet-architecture-csni
keyword: multi-puits
keyword: multicanal
keyword: multichannel
keyword: ordonnancement-sans-conflit
keyword: reseaux-de-capteurs-sans-fil
keyword: theses
keyword: time-slot-assignment
keyword: wireless-sensor-networks
landing page: https://theses.hal.science/tel-00978887

Wireless sensor networks in industrial environment : energy efficiency, delay and scalability
type: Distribution
format: HTML
issued: 2026-05-05T14:44:15.103931
modified: 2026-05-05T14:44:15.075959
access URL: https://theses.hal.science/tel-00978887

test_moissonnage_selune
type: Agent