Toggle Main Menu Toggle Search

Open Access padlockePrints

Throughput enhancement using Hierarchical Modulation for Underwater Acoustic Communication System

Lookup NU author(s): Professor Charalampos TsimenidisORCiD


Full text for this publication is not currently held within this repository. Alternative links are provided below where available.


© 2021 Acoustical Society of America.Cooperative communication systems can solve the data rate limitations in underwater acoustic channels (UAC) introduced by their half-duplex (HD) nature and bandwidth limitations. In this paper, Hierarchical Modulation (HM) is introduced to both enhance the system throughput and spectral efficiency, as well as to enable various degrees of priority communication links. The proposed system utilizes HM with orthogonal frequency division multiplexing modulation (OFDM) in a two-way relay network (TWRN) using physical layer network coding (PLNC) to exchange information between two nodes operating in HD mode. The performance of the proposed PLNC-TWRN system is analysed via simulations using realistic UAC and numerical results are presented to demonstrate that it can significantly enhance the throughput.

Publication metadata

Author(s): Awny SN, Jebur BA, Tsimenidis CC

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 6th Underwater Acoustics Conference and Exhibition

Year of Conference: 2021

Pages: 070027

Print publication date: 20/06/2021

Online publication date: 11/11/2021

Acceptance date: 18/10/2021

ISSN: 1939-800X

Publisher: Acoustical Society of America


DOI: 10.1121/2.0001495

Series Title: Proceedings of Meetings on Acoustics