Authors:
Konstantinos Chantzis
1
;
Dimitrios Amaxilatis
2
;
Ioannis Chatzigiannakis
2
and
Jose Rolim
1
Affiliations:
1
University of Geneva, Switzerland
;
2
University of Patras, Greece
Keyword(s):
Topology Control, Adaptive Protocol, Link Symmetry, Experimental Evaluation, Reliability, Fault Tolerance.
Related
Ontology
Subjects/Areas/Topics:
Connectivity and Communication
;
Fault Tolerance and Diagnosis
;
Obstacles
;
Power Management
;
Sensor Networks
;
Software and Architectures
;
Wireless Information Networks
;
Wireless Network Protocols
Abstract:
Wireless Sensor Networks (WSNs) are by nature dynamic and communication between sensors nodes is ad hoc. Numerous protocols and applications proposed operate on the assumption that communication channels are stable. Topology Control Protocols are crucial in the operation of WSNs as they adjust transmission power in order to maintain link quality, minimize interference and provide spatial topological control. Analysis of such protocols is performed using theoretical models that are based on unrealistic assumptions like ideal wireless channels and perfect energy consumption and distance estimations. With these assumptions taken for granted, theoretical models claim various performance milestones that cannot be achieved in realistic conditions. We here present a topology control protocol that is deployable in real WSNs and distance ourselves from spatial, temporal, environmental assumptions regarding the performance of communications on the wireless medium. Our protocol focuses on fault
tolerance and symmetric link coherence using an adaptive transmission power scheme. From various testbed experiments we showcase the performance of SCLD-ATP in terms of load balancing, reliability, multi-hop capabilities and power consumption.
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