Short-Range Adaptive RA-UAC

Xilin Cheng, Liuqing Yang, Xiang Cheng

Research output: Chapter in Book/Report/Conference proceedingChapter


In this chapter, we present the adaptive system design for the short-range RA-UAC to improve the communication reliability. We design the adaptive RA-UAC system in three steps. As a fundamental step, we derive the optimal power allocation and distribution between the source and the relay with individual and total power constraints. In the second step, we implement channel prediction to compensate the channel variation during CSI signal feedback using the RLS adaptive filter. In the last step, the Lloyd algorithm is adopted to quantize CSI efficiently to adapt to the band-limited UWA channels.

Original languageEnglish (US)
Title of host publicationWireless Networks(United Kingdom)
PublisherSpringer Science and Business Media B.V.
Number of pages22
StatePublished - 2016
Externally publishedYes

Publication series

NameWireless Networks(United Kingdom)
ISSN (Print)2366-1186
ISSN (Electronic)2366-1445

Bibliographical note

Publisher Copyright:
© 2016, Springer International Publishing Switzerland.


  • Channel Impulse Response
  • OFDM Symbol
  • Optimal Power Allocation
  • Power Allocation
  • Transmission Distance


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