Energy-efficient forwarding strategies for wireless sensor networks in fading channels

In the context of geographic routing in wireless sensor networks linked by fading communication channels, energy-efficient transmission is important to extend the network lifetime. To this end, we propose a novel method to minimize the energy consumed by one bit of information per meter and per seco...

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Bibliographic Details
Published in:Annales des télécommunications 2021-02, Vol.76 (1-2), p.97-108
Main Authors: Milocco, R., Muhlethaler, P., Boumerdassi, S.
Format: Article
Language:English
Subjects:
Channels
Circuits
Communications Engineering
Computer Communication Networks
Computer Science
Cost analysis
Energy
Energy costs
Engineering
Fading
Information and Communication
Information Systems and Communication Service
Networks
R & D/Technology Policy
Sensors
Signal,Image and Speech Processing
Wireless communications
Wireless networks
Wireless sensor networks
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Summary:In the context of geographic routing in wireless sensor networks linked by fading communication channels, energy-efficient transmission is important to extend the network lifetime. To this end, we propose a novel method to minimize the energy consumed by one bit of information per meter and per second toward the destination in fading channels. Using the outage probability as a measure to maximize the amount of information delivered within a given time interval we decide energy-efficient geographic routing between admissible nodes in a wireless sensor network. We present three different approaches, the first is optimal and is obtained by varying both transmission rate and power, the other two are sub-optimal since only one of them is tuned. Simulation examples comparing the energy costs for the different strategies illustrate the theoretical analysis in the cases of log-normal and Nakagami shadow fading. With the method proposed it is possible to obtain significant energy savings (up to ten times) with respect to fixed transmission rate and power.
ISSN:0003-4347
1958-9395
DOI:10.1007/s12243-020-00815-x