Abstract
—A limiting factor of communication networks is the so-called near-far effect, where transmissions from a node (near) close to a common receiver blocks transmissions of a farther node (far). Due to the high power attenuation in the underwater acoustic channel, near-far is common in underwater acoustic communication networks (UWANs), and the phenomena occurs even for a rate of 1/2 between the distances of the near and far nodes to the receiver. In this paper, we offer a novel interference cancellation (IC) approach for handling such interference by decoding the ”near” signal and the ”far” one in parallel, thereby improving detection for both signals. Simulation results show that, compared to the traditional decision feedback equalizer, our approach gains 12 dB in the output SNR of the jammed source and 4 dB in the output SNR of the jamming source.
| Original language | English |
|---|---|
| Pages (from-to) | 259-263 |
| Number of pages | 5 |
| Journal | Underwater Acoustic Conference and Exhibition Series |
| State | Published - 2019 |
| Event | 5th Underwater Acoustics Conference and Exhibition, UACE 2019 - Hersonissos, Greece Duration: 30 Jun 2019 → 5 Jul 2019 |
Bibliographical note
Publisher Copyright:© 2019, I.A.C.M, Foundation for Research and Technology - Hellas. All rights reserved.
Keywords
- Index Terms—Underwater acoustic communications
- compresive sensing
- interference cancellation
- near-far
ASJC Scopus subject areas
- Geophysics
- Oceanography
- Environmental Engineering
- Acoustics and Ultrasonics