A study of antenna array based multipath propagation phenomenon in LAS-CDMA standard
Throughout the history of wireless communications, spatially diversity's antenna array system has being important in improving the radio link between wireless users. Moreover, this system are proposed to reduce the multipath fading through its directivity narrowly radiation beam. The introducti...
| Main Authors: | , , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
IEEE
2004
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| Online Access: | http://psasir.upm.edu.my/id/eprint/48205/ http://psasir.upm.edu.my/id/eprint/48205/1/A%20study%20of%20antenna%20array%20based%20multipath%20propagation%20phenomenon%20in%20LAS-CDMA%20standard.pdf |
| _version_ | 1848851018425565184 |
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| author | Ng, Chee Kyun Khatun, Sabira Mohd Ali, Borhanuddin Jamuar, Sudhanshu Shekhar Ismail, Mahamod |
| author_facet | Ng, Chee Kyun Khatun, Sabira Mohd Ali, Borhanuddin Jamuar, Sudhanshu Shekhar Ismail, Mahamod |
| author_sort | Ng, Chee Kyun |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Throughout the history of wireless communications, spatially diversity's antenna array system has being important in improving the radio link between wireless users. Moreover, this system are proposed to reduce the multipath fading through its directivity narrowly radiation beam. The introduction of interference free window in delay domain from newly LAS-CDMA standard has received many attentions for furthering research on multipath delay spread. In this paper, we studied the effect of angular spread on maximum excess delay in multipath propagation environments. Then, we examined the application of antenna array in LAS-CDMA standard to overcome this multipath phenomenon. First of all, the multipath propagation literatures are reviewed, followed by the explanation of maximum angular spread in a simple discrete ring of scatterers model. Comparison analyses are made between conventional omnidirectional antenna and narrow beam antenna array. Finally, the analytical performances in term of power delay profile are presented. |
| first_indexed | 2025-11-15T10:15:31Z |
| format | Conference or Workshop Item |
| id | upm-48205 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:15:31Z |
| publishDate | 2004 |
| publisher | IEEE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-482052016-08-04T05:17:18Z http://psasir.upm.edu.my/id/eprint/48205/ A study of antenna array based multipath propagation phenomenon in LAS-CDMA standard Ng, Chee Kyun Khatun, Sabira Mohd Ali, Borhanuddin Jamuar, Sudhanshu Shekhar Ismail, Mahamod Throughout the history of wireless communications, spatially diversity's antenna array system has being important in improving the radio link between wireless users. Moreover, this system are proposed to reduce the multipath fading through its directivity narrowly radiation beam. The introduction of interference free window in delay domain from newly LAS-CDMA standard has received many attentions for furthering research on multipath delay spread. In this paper, we studied the effect of angular spread on maximum excess delay in multipath propagation environments. Then, we examined the application of antenna array in LAS-CDMA standard to overcome this multipath phenomenon. First of all, the multipath propagation literatures are reviewed, followed by the explanation of maximum angular spread in a simple discrete ring of scatterers model. Comparison analyses are made between conventional omnidirectional antenna and narrow beam antenna array. Finally, the analytical performances in term of power delay profile are presented. IEEE 2004 Conference or Workshop Item PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/48205/1/A%20study%20of%20antenna%20array%20based%20multipath%20propagation%20phenomenon%20in%20LAS-CDMA%20standard.pdf Ng, Chee Kyun and Khatun, Sabira and Mohd Ali, Borhanuddin and Jamuar, Sudhanshu Shekhar and Ismail, Mahamod (2004) A study of antenna array based multipath propagation phenomenon in LAS-CDMA standard. In: RF and Microwave Conference (RFM 2004), 5-6 Oct. 2004, Subang, Selangor. (pp. 23-27). 10.1109/RFM.2004.1411064 |
| spellingShingle | Ng, Chee Kyun Khatun, Sabira Mohd Ali, Borhanuddin Jamuar, Sudhanshu Shekhar Ismail, Mahamod A study of antenna array based multipath propagation phenomenon in LAS-CDMA standard |
| title | A study of antenna array based multipath propagation phenomenon in LAS-CDMA standard |
| title_full | A study of antenna array based multipath propagation phenomenon in LAS-CDMA standard |
| title_fullStr | A study of antenna array based multipath propagation phenomenon in LAS-CDMA standard |
| title_full_unstemmed | A study of antenna array based multipath propagation phenomenon in LAS-CDMA standard |
| title_short | A study of antenna array based multipath propagation phenomenon in LAS-CDMA standard |
| title_sort | study of antenna array based multipath propagation phenomenon in las-cdma standard |
| url | http://psasir.upm.edu.my/id/eprint/48205/ http://psasir.upm.edu.my/id/eprint/48205/ http://psasir.upm.edu.my/id/eprint/48205/1/A%20study%20of%20antenna%20array%20based%20multipath%20propagation%20phenomenon%20in%20LAS-CDMA%20standard.pdf |