DOI: 10.5176/978-981-08-9266-1_mobicona36
Authors: Wen-Chan Shih, Raja Jurdak, Bih-Hwang Lee, David Abbott
Abstract:
We propose the use of a block orthogonal code to reduce the symbol error rate, and therefore improve the throughput, of wake-up radios used in sensor networks. Currently proposed wake-up radios that use, for example, on-off keying modulation focus on integrated circuit design for low power operation. However, they do not take error correction coding into account and therefore increase the error rates and reduce the node lifetime. We develop a system model to evaluate the throughput of our proposed scheme.
We implement a simulation of this model and show that our approach significantly improves the throughput of these radios. When compared with on-off keying modulation using 8b10b encoding we can achieve up to a factor of 10 improvement in the radio’s throughput without any additional hardware or energy consumption.
Keywords: wake-up radio; error-correcting code (ECC); wireless sensor network
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