Wireless Scheduling Algorithms in Complex Environments

Provided by: Association for Computing Machinery
Topic: Networking
Format: PDF
Efficient spectrum use in wireless sensor networks through spatial reuse requires effective models of packet reception at the physical layer in the presence of interference. Despite recent progress in analytic and simulations research into worst-case behavior from interference effects, these efforts generally assume geometric path loss and isotropic transmission, assumptions which have not been borne out in experiments. The authors' paper aims to provide a methodology for grounding theoretical results into wireless interference in experimental reality. They develop a new framework for wireless algorithms in which distance based path loss is replaced by an arbitrary gain matrix, typically obtained by measurements of Received Signal Strength (RSS).

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