Adaptivity at the Physical Layer
bookPart
What can be adjusted in-mission to maintain stable communication and how can it be done? This chapter first lists the important parameters. For example, adjusting the transmission power based on distance, or varying the data rate vs required robustness. It is explained that the modem settings can be optimized based on user/scenario requirements and application settings, as well as environmental conditions. For the latter, we can distinguish between physical descriptors and system descriptors. For interoperability, it is important that modem settings remain synchronized within the network. Several approaches are discussed. Finally, it is investigated how decisions for adaptions can be made. Often the decision involves switching to pre-defined modes (profiles) based on certain criteria, but in-mission optimizations have also been reported.
Topics
TNO Identifier
885075
Source
Cognitive Underwater Acoustic Networking Techniques, pp. 13-37.
Publisher
Springer
Pages
13-37
Files
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