A full rate concatenated space-frequency and space-time OFDM over Naftali fading channels
In this paper we investigate 2 transmit and 1 receive (2Tx:1Rx) space-frequency orthogonal frequency division multiplexing (SF-OFDM) and space-time OFDM (ST-OFDM) concatenated with convolutional channel coding as a redundancy method to combat channel impairments. We built our SF and ST-OFDM on top o...
| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
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IEEE
2005
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| Online Access: | http://psasir.upm.edu.my/id/eprint/47631/ http://psasir.upm.edu.my/id/eprint/47631/1/A%20full%20rate%20concatenated%20space-frequency%20and%20space-time%20OFDM%20over%20Naftali%20fading%20channels.pdf |
| _version_ | 1848850863910551552 |
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| author | Noordin, Nor Kamariah Mohd Ali, Borhanuddin Jamuar, Sudhanshu Shekhar Ismail, Mahamod |
| author_facet | Noordin, Nor Kamariah Mohd Ali, Borhanuddin Jamuar, Sudhanshu Shekhar Ismail, Mahamod |
| author_sort | Noordin, Nor Kamariah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | In this paper we investigate 2 transmit and 1 receive (2Tx:1Rx) space-frequency orthogonal frequency division multiplexing (SF-OFDM) and space-time OFDM (ST-OFDM) concatenated with convolutional channel coding as a redundancy method to combat channel impairments. We built our SF and ST-OFDM on top of our coded OFDM (COFDM) with coding rate of 1/4 and constraint length of 10. We simulate our concatenated SF-OFDM and ST-OFDM over a multipath fading channel using Naftali 802.11 channel model under different delay spreads in relation to outdoor environment. Concatenated SF- OFDM performs slightly better than ST-OFDM at delay spread of 2.0 microseconds, but both are almost comparable at all other delay spreads. These two schemes outperforms other schemes such as single antenna coded OFDM and Alamouti's Space-Time Block Code (STBC) under these conditions by as much as 10 dB at BER of 104. |
| first_indexed | 2025-11-15T10:13:03Z |
| format | Conference or Workshop Item |
| id | upm-47631 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:13:03Z |
| publishDate | 2005 |
| publisher | IEEE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-476312016-06-21T04:55:18Z http://psasir.upm.edu.my/id/eprint/47631/ A full rate concatenated space-frequency and space-time OFDM over Naftali fading channels Noordin, Nor Kamariah Mohd Ali, Borhanuddin Jamuar, Sudhanshu Shekhar Ismail, Mahamod In this paper we investigate 2 transmit and 1 receive (2Tx:1Rx) space-frequency orthogonal frequency division multiplexing (SF-OFDM) and space-time OFDM (ST-OFDM) concatenated with convolutional channel coding as a redundancy method to combat channel impairments. We built our SF and ST-OFDM on top of our coded OFDM (COFDM) with coding rate of 1/4 and constraint length of 10. We simulate our concatenated SF-OFDM and ST-OFDM over a multipath fading channel using Naftali 802.11 channel model under different delay spreads in relation to outdoor environment. Concatenated SF- OFDM performs slightly better than ST-OFDM at delay spread of 2.0 microseconds, but both are almost comparable at all other delay spreads. These two schemes outperforms other schemes such as single antenna coded OFDM and Alamouti's Space-Time Block Code (STBC) under these conditions by as much as 10 dB at BER of 104. IEEE 2005 Conference or Workshop Item PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/47631/1/A%20full%20rate%20concatenated%20space-frequency%20and%20space-time%20OFDM%20over%20Naftali%20fading%20channels.pdf Noordin, Nor Kamariah and Mohd Ali, Borhanuddin and Jamuar, Sudhanshu Shekhar and Ismail, Mahamod (2005) A full rate concatenated space-frequency and space-time OFDM over Naftali fading channels. In: 2005 IEEE Region 10 Conference (TENCON 2005), 21-24 Nov. 2005, Crown Promenade Hotel Melbourne, Australia. . 10.1109/TENCON.2005.300852 |
| spellingShingle | Noordin, Nor Kamariah Mohd Ali, Borhanuddin Jamuar, Sudhanshu Shekhar Ismail, Mahamod A full rate concatenated space-frequency and space-time OFDM over Naftali fading channels |
| title | A full rate concatenated space-frequency and space-time OFDM over Naftali fading channels |
| title_full | A full rate concatenated space-frequency and space-time OFDM over Naftali fading channels |
| title_fullStr | A full rate concatenated space-frequency and space-time OFDM over Naftali fading channels |
| title_full_unstemmed | A full rate concatenated space-frequency and space-time OFDM over Naftali fading channels |
| title_short | A full rate concatenated space-frequency and space-time OFDM over Naftali fading channels |
| title_sort | full rate concatenated space-frequency and space-time ofdm over naftali fading channels |
| url | http://psasir.upm.edu.my/id/eprint/47631/ http://psasir.upm.edu.my/id/eprint/47631/ http://psasir.upm.edu.my/id/eprint/47631/1/A%20full%20rate%20concatenated%20space-frequency%20and%20space-time%20OFDM%20over%20Naftali%20fading%20channels.pdf |