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Our research team at the University of Nebraska's Advanced Telecommunications Engineering Lab (TEL) is working closely with the North American freight railroad industry to leverage wireless sensor networks (WSN) onboard railcars for advanced monitoring and alerting. Because freight train WSNs exhibit a linear chain-like topology of significant length, the existing IEEE 802.15.4 communication protocol,...
Performance of a deployed Wireless Sensor Network (WSN) is greatly influenced by the interference it is subject to during operation. Degradation happens due to interference resulting in packet drops, retransmissions, link instability and inconsistent protocol behavior. We have conducted experiments that highlight the fact that interference caused by WiFi and co-channel contention significantly degrades...
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