Abstract

We perform systematic experiments to investigate the impact of variable transmission power on link quality. Experimental study presents the causes and significance of link quality variation in real-world deployments. Motivated by our observations from these experiments, we propose a packet-based transmission power control mechanism that incorporates link blacklisting (PCBL) to enhance the performance of data delivery in wireless sensor networks. The effectiveness of the proposed PCBL scheme is demonstrated via comparative testbed experiments considering both single and multiple interfering flows, with and without collision avoidance.

Date

2007

Authors

Dongjin Son, Bhaskar Krishnamachari, John Heidemann

Journal

Information Sciences Institute, Tech. Rep. ISI-TR-629