Coded space-time-frequency OFDM over IEEE 802.11 fading channels
In this paper we present 4 transmit and 1 receive (4Tx:1Rx) antenna system of coded space-time-frequency in conjunction with orthogonal frequency division multiplexing (coded STF-OFDM). We concatenate STF block code with channel coding namely convolutional code of rate 1/2 with length 5 to combat ch...
| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
IEEE
2005
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| Online Access: | http://psasir.upm.edu.my/id/eprint/47753/ http://psasir.upm.edu.my/id/eprint/47753/1/Coded%20space-time-frequency%20OFDM%20over%20IEEE%20802.11%20fading%20channels.pdf |
| _version_ | 1848850896701620224 |
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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 present 4 transmit and 1 receive (4Tx:1Rx) antenna system of coded space-time-frequency in conjunction with orthogonal frequency division multiplexing (coded STF-OFDM). We concatenate STF block code with channel coding namely convolutional code of rate 1/2 with length 5 to combat channel impairment. We compare our coded STF scheme with ST-OFDM and SF-OFDM over IEEE 802.11 multipath channel under delay spread of 700 ns and 1 us in outdoor environments. Results show that coded STF-OFDM scheme outperforms other schemes by as much as 8 dB (against ST-OFDM) in spread of 700 ns. The scheme also outperforms others over a severe channel with delay spread of 1 us but is almost comparable to coded SF-OFDM. |
| first_indexed | 2025-11-15T10:13:34Z |
| format | Conference or Workshop Item |
| id | upm-47753 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:13:34Z |
| publishDate | 2005 |
| publisher | IEEE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-477532016-07-14T09:41:16Z http://psasir.upm.edu.my/id/eprint/47753/ Coded space-time-frequency OFDM over IEEE 802.11 fading channels Noordin, Nor Kamariah Mohd Ali, Borhanuddin Jamuar, Sudhanshu Shekhar Ismail, Mahamod In this paper we present 4 transmit and 1 receive (4Tx:1Rx) antenna system of coded space-time-frequency in conjunction with orthogonal frequency division multiplexing (coded STF-OFDM). We concatenate STF block code with channel coding namely convolutional code of rate 1/2 with length 5 to combat channel impairment. We compare our coded STF scheme with ST-OFDM and SF-OFDM over IEEE 802.11 multipath channel under delay spread of 700 ns and 1 us in outdoor environments. Results show that coded STF-OFDM scheme outperforms other schemes by as much as 8 dB (against ST-OFDM) in spread of 700 ns. The scheme also outperforms others over a severe channel with delay spread of 1 us but is almost comparable to coded SF-OFDM. IEEE 2005 Conference or Workshop Item PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/47753/1/Coded%20space-time-frequency%20OFDM%20over%20IEEE%20802.11%20fading%20channels.pdf Noordin, Nor Kamariah and Mohd Ali, Borhanuddin and Jamuar, Sudhanshu Shekhar and Ismail, Mahamod (2005) Coded space-time-frequency OFDM over IEEE 802.11 fading channels. In: 2005 Asia-Pacific Conference on Communications, 3-5 Oct. 2005, Perth, Western Australia, Australia. (pp. 1078-1082). 10.1109/APCC.2005.1554230 |
| spellingShingle | Noordin, Nor Kamariah Mohd Ali, Borhanuddin Jamuar, Sudhanshu Shekhar Ismail, Mahamod Coded space-time-frequency OFDM over IEEE 802.11 fading channels |
| title | Coded space-time-frequency OFDM over IEEE 802.11 fading channels |
| title_full | Coded space-time-frequency OFDM over IEEE 802.11 fading channels |
| title_fullStr | Coded space-time-frequency OFDM over IEEE 802.11 fading channels |
| title_full_unstemmed | Coded space-time-frequency OFDM over IEEE 802.11 fading channels |
| title_short | Coded space-time-frequency OFDM over IEEE 802.11 fading channels |
| title_sort | coded space-time-frequency ofdm over ieee 802.11 fading channels |
| url | http://psasir.upm.edu.my/id/eprint/47753/ http://psasir.upm.edu.my/id/eprint/47753/ http://psasir.upm.edu.my/id/eprint/47753/1/Coded%20space-time-frequency%20OFDM%20over%20IEEE%20802.11%20fading%20channels.pdf |