Please use this identifier to cite or link to this item:
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/30462
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Dheyauldeen Najm Abdulameer | - |
dc.contributor.author | Abid, Yahya, Dr. | - |
dc.date.accessioned | 2013-12-12T03:25:06Z | - |
dc.date.available | 2013-12-12T03:25:06Z | - |
dc.date.issued | 2012-06-18 | - |
dc.identifier.citation | p. 987-992 | en_US |
dc.identifier.isbn | 978-967-5760-11-2 | - |
dc.identifier.uri | http://dspace.unimap.edu.my/123456789/30462 | - |
dc.description | The 2nd International Malaysia-Ireland Joint Symposium on Engineering, Science and Business 2012 (IMiEJS2012) jointly organized by Universiti Malaysia Perlis and Athlone Institute of Technology in collaboration with The Ministry of Higher Education (MOHE) Malaysia, Education Malaysia and Malaysia Postgraduates Student Association Ireland (MyPSI), 18th - 19th June 2012 at Putra World Trade Center (PWTC), Kuala Lumpur, Malaysia. | en_US |
dc.description.abstract | Orthogonal Frequency Division Multiplexing (OFDM) is an attractive modulation technique for underwater acoustic communications, where it has proven to be effective in combating the frequency-selective multipath distortion without the need for complex time-domain equalizers, thus offering simplicity of implementation. However, OFDM signals are characterized by large peak-to-average power ratios (PAR), which can reduce the system efficiency. To avoid the non-linear distortion in the transmit amplifier, the peak signal amplitude must be kept under a pre-specified limit, i.e. a back-off must be introduced, which reduces the average (useful) power. Acoustic systems are confined to low frequencies due to the propagation losses, while further band-limitingoccurs naturally in the transducer. The transducer thus acts as an analog filter in the final stage of transmission. While otherwise undesirable, this filtering effect can be exploited towards PAR reduction [26], also have considered the challenges in underwater and made a comparison with other communication techniques in attenuation, effective range, propagation delay, bandwidth and data rate, and looking for improvement of such technique to enhance the system. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Universiti Malaysia Perlis (UniMAP) | en_US |
dc.relation.ispartofseries | Proceedings of the The 2nd International Malaysia-Ireland Joint Symposium on Engineering, Science and Business 2012 (IMiEJS2012); | - |
dc.subject | Orthogonal Frequency Division Multiplexing (OFDM) | en_US |
dc.subject | Peak-to-average power ratios (PAR) | en_US |
dc.subject | Underwater acoustic (UWA) | en_US |
dc.subject | Underwater acoustic communications | en_US |
dc.subject | Underwater Acoustic Networks (UANs ) | en_US |
dc.title | Realization of Orthogonal Frequency Division Multiplexing (OFDM) in Underwater Acoustic (UWA) communication | en_US |
dc.type | Working Paper | en_US |
dc.contributor.url | Dhdena_70@yahoo.com | en_US |
dc.contributor.url | Abidusm@gmail.com | en_US |
Appears in Collections: | Conference Papers |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
pg 987 - 992.pdf | Access is limited to UniMAP community | 247.06 kB | Adobe PDF | View/Open |
Items in UniMAP Library Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.