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  4. Self-Stabilizing MAC protocols for large-scale, heavy loaded sensor networks under consideration of hidden nodes
 
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Self-Stabilizing MAC protocols for large-scale, heavy loaded sensor networks under consideration of hidden nodes

Citation Link: https://doi.org/10.15480/882.1067
Publikationstyp
Working Paper
Date Issued
2011
Sprache
English
Author(s)
Unterschütz, Stefan  
Turau, Volker  
Institut
Telematik E-17  
TORE-DOI
10.15480/882.1067
TORE-URI
http://tubdok.tub.tuhh.de/handle/11420/1069
In large-scale, heavy loaded sensor networks the hidden node problem significantly restricts the attainable throughput. This paper examines this issue and depicts why most TDMA as well as dedicated hybrid MAC protocols are still negatively affected by this phenomenon. The concept of probabilistic self-stabilization is adopted to provide a framework for implementable reservation MAC protocols that avoid packet loss caused by signal interferences even under high load. These protocols base upon two main primitives: continuity in channel access, allowing predictability, and acknowledgments, permitting to discover packet loss. The designed TDMA and CSMA protocols are able to cope with the
hidden node problem and with topology changes and achieve a high throughput in a steady state. The protocols are simulated and compared with IEEE’s 802.15.4 unslotted CSMA/CA protocol.
Subjects
self-stabilization
sensor network
MAC
CSMA
Lizenz
http://doku.b.tu-harburg.de/doku/lic_mit_pod.php
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