Inter-carrier interference mitigation for underwater acoustic communications

Communicating at a high data rate through the ocean is challenging. Such communications must be acoustic in order to travel long distances. The underwater acoustic channel has a long delay spread, which makes orthogonal frequency division multiplexing (OFDM) an attractive communication scheme. However, the underwater acoustic channel is highly dynamic, which has the potential to introduce significant inter-carrier interference (ICI). This thesis explores a number of means for mitigating ICI in such communication systems. One method that is explored is directly adapted linear turbo ICI cancellation. This scheme uses linear filters in an iterative structure to cancel the interference. Also explored is on-off keyed (OOK) OFDM, which is a signal designed to avoid ICI.

Name thesis:degree_name

M.S.

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Electrical & Computer Engr

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2010

Author dc:creator

• Daly, Erica Lynn

Contributors dc:contributor

• Singer, Andrew C.

• Orthogonal frequency-division multiplexing (OFDM)
• inter-carrier interference (ICI)
• underwater acoustic communication

Statement dc:rights

• Copyright 2009 Erica Lynn Daly

Language dc:language

en

Handle dc:identifier

http://hdl.handle.net/2142/14626

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/14626