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Several future wireless communication systems will exploit multiple frequency channels simultaneously to reduce delay, enhance throughput and/or improve robustness. Nevertheless, the impact of multi-channel communications on different applications has not been comprehensively studied even though it is of significant importance to understand the interdependencies between the communication and application parameters. In this paper, the authors study the performance of networked estimation in contention-based multi-channel wireless sensor networks by focusing especially on the delay introduced by the Media Access Control (MAC) layer.
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