Adaptive spatial mode of space-time and spacefrequency OFDM system over fading channels
In this paper we present a 2 transmit 1 receive (1 Tx : 1 Rx) adaptive spatial mode (ASM) of space-time (ST) and space-frequency (SF) orthogonal frequency division multiplexing (OFDM). At low signal to noise ratio (SNR) we employ ST-OFDM and switch to SF-OFDM at a certain SNR threshold. We determ...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Penerbit UTM Press
2006
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| Subjects: | |
| Online Access: | http://eprints.utm.my/4109/ http://eprints.utm.my/4109/1/JTD_2005_09.pdf |
| _version_ | 1848890721883389952 |
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| author | Noordin, Nor K. M. Ali, Borhanuddin Jamuar, S. S. A. Rahman, Tharek Ismail, Mahamod |
| author_facet | Noordin, Nor K. M. Ali, Borhanuddin Jamuar, S. S. A. Rahman, Tharek Ismail, Mahamod |
| author_sort | Noordin, Nor K. |
| building | UTeM Institutional Repository |
| collection | Online Access |
| description | In this paper we present a 2 transmit 1 receive (1 Tx : 1 Rx) adaptive spatial
mode (ASM) of space-time (ST) and space-frequency (SF) orthogonal frequency division
multiplexing (OFDM). At low signal to noise ratio (SNR) we employ ST-OFDM and switch
to SF-OFDM at a certain SNR threshold. We determine this threshold from the intersection
of individual performance curves. Results show a gain of 9 dB (at a bit error rate of 10-3) is
achieved by employing adaptive spatial mode compared to a fixed ST-OFDM, almost 6 dB
to fixed SF-OFDM, 4 dB to Coded ST-OFDM and 2 dB to a fixed coded SF-OFDM, at a
delay spread of 700 ns.
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| first_indexed | 2025-11-15T20:46:35Z |
| format | Article |
| id | utm-4109 |
| institution | Universiti Teknologi Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:46:35Z |
| publishDate | 2006 |
| publisher | Penerbit UTM Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | utm-41092017-11-01T04:17:28Z http://eprints.utm.my/4109/ Adaptive spatial mode of space-time and spacefrequency OFDM system over fading channels Noordin, Nor K. M. Ali, Borhanuddin Jamuar, S. S. A. Rahman, Tharek Ismail, Mahamod TK Electrical engineering. Electronics Nuclear engineering In this paper we present a 2 transmit 1 receive (1 Tx : 1 Rx) adaptive spatial mode (ASM) of space-time (ST) and space-frequency (SF) orthogonal frequency division multiplexing (OFDM). At low signal to noise ratio (SNR) we employ ST-OFDM and switch to SF-OFDM at a certain SNR threshold. We determine this threshold from the intersection of individual performance curves. Results show a gain of 9 dB (at a bit error rate of 10-3) is achieved by employing adaptive spatial mode compared to a fixed ST-OFDM, almost 6 dB to fixed SF-OFDM, 4 dB to Coded ST-OFDM and 2 dB to a fixed coded SF-OFDM, at a delay spread of 700 ns. Penerbit UTM Press 2006-12 Article PeerReviewed application/pdf en http://eprints.utm.my/4109/1/JTD_2005_09.pdf Noordin, Nor K. and M. Ali, Borhanuddin and Jamuar, S. S. and A. Rahman, Tharek and Ismail, Mahamod (2006) Adaptive spatial mode of space-time and spacefrequency OFDM system over fading channels. Jurnal Teknologi D (45D). pp. 59-76. ISSN 0127-9696 http://www.penerbit.utm.my/onlinejournal/45/D/JTDis45D04.pdf |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Noordin, Nor K. M. Ali, Borhanuddin Jamuar, S. S. A. Rahman, Tharek Ismail, Mahamod Adaptive spatial mode of space-time and spacefrequency OFDM system over fading channels |
| title | Adaptive spatial mode of space-time and spacefrequency OFDM system over fading channels |
| title_full | Adaptive spatial mode of space-time and spacefrequency OFDM system over fading channels |
| title_fullStr | Adaptive spatial mode of space-time and spacefrequency OFDM system over fading channels |
| title_full_unstemmed | Adaptive spatial mode of space-time and spacefrequency OFDM system over fading channels |
| title_short | Adaptive spatial mode of space-time and spacefrequency OFDM system over fading channels |
| title_sort | adaptive spatial mode of space-time and spacefrequency ofdm system over fading channels |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://eprints.utm.my/4109/ http://eprints.utm.my/4109/ http://eprints.utm.my/4109/1/JTD_2005_09.pdf |