Thesis
Lattice-based media access for energy-efficient wireless sensor networks
Master of Science (MS), Washington State University
2008
Handle:
https://hdl.handle.net/2376/101632
Abstract
Media access in wireless sensor networks has distinct requirements including energy-efficiency, low latency, simplicity, scalability, etc. Further, constraining efficient media access is the spatiallycorrelated contention: several close-by nodes detecting an event send packets to the base station simultaneously. Such contention adversely affects delay, degrades throughput and wastes energy. Primarily motivated to overcome this contention, we propose a distributed topology control to construct a lattice communication backbone. This collaborative lattice naturally provides two forwarders for any backbone node to diffuse traffic, to employ low duty cycles, to allow staggered wakeup scheduling, and to reduce set-up latencies. Further, the controlled topology of a lattice allows a straightforward collision avoidance to overcome contention. We implemented our lattice construction and associated media access using ns-2 simulator for evaluating its performance. Results shows that our lattice backbone provide significant energy savings, lower delay, and higher throughput.
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Details
- Title
- Lattice-based media access for energy-efficient wireless sensor networks
- Creators
- Ghayathri Garudapuram
- Contributors
- Muralidhar Medidi (Degree Supervisor)
- Awarding Institution
- Washington State University
- Academic Unit
- Electrical Engineering and Computer Science, School of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Identifiers
- 99900525163801842
- Language
- English
- Resource Type
- Thesis