Downlink channel estimation for IMT-DS
IMT-DS system is an approved terrestrial radio interface standard for 3G mobile communication based on direct sequence code division multiple access (DS-CDMA). It employs a RAKE receiver to exploit multipath diversity. This paper discusses a new dimension in DS-CDMA channel estimation i.e., chip-lev...
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| Format: | article |
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2001
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| Online Access: | https://eprints.kfupm.edu.sa/id/eprint/14767/1/14767_1.pdf https://eprints.kfupm.edu.sa/id/eprint/14767/2/14767_2.doc |
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| _version_ | 1864513394287050752 |
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| author | Faisal, S. |
| author2 | Shah, A. Sheikh, A.U.H. unknown |
| author2_role | author author author |
| author_facet | Faisal, S. Shah, A. Sheikh, A.U.H. unknown |
| author_role | author |
| dc.creator.none.fl_str_mv | Faisal, S. Shah, A. Sheikh, A.U.H. unknown |
| dc.date.none.fl_str_mv | 2001-09 2020 |
| dc.format.none.fl_str_mv | application/pdf application/msword |
| dc.identifier.none.fl_str_mv | https://eprints.kfupm.edu.sa/id/eprint/14767/1/14767_1.pdf https://eprints.kfupm.edu.sa/id/eprint/14767/2/14767_2.doc (2001) Downlink channel estimation for IMT-DS. Personal, Indoor and Mobile Radio Communications, 2001 12th IEEE International Symposium on, 2. |
| dc.language.none.fl_str_mv | en en |
| dc.publisher.none.fl_str_mv | IEEE |
| dc.relation.none.fl_str_mv | https://eprints.kfupm.edu.sa/id/eprint/14767/ |
| dc.rights.*.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Computer |
| dc.title.none.fl_str_mv | Downlink channel estimation for IMT-DS |
| dc.type.none.fl_str_mv | Article PeerReviewed info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | IMT-DS system is an approved terrestrial radio interface standard for 3G mobile communication based on direct sequence code division multiple access (DS-CDMA). It employs a RAKE receiver to exploit multipath diversity. This paper discusses a new dimension in DS-CDMA channel estimation i.e., chip-level adaptive channel estimation. The DL channel of an IMT-DS system consists of time-multiplexed pilot and data symbols to facilitate coherent detection. To obtain channel estimates during pilot symbols, we propose a chip level adaptive channel estimation which performs better than the conventional method. For slow fading channels, like a pedestrian channel, zero order interpolation provides satisfactory performance. However, for fast fading channels, a common decision directed algorithm is applied whose performance is limited due to error propagation. The proposed schemes are assessed over the IMT-DS system by performing simulations |
| eu_rights_str_mv | openAccess |
| format | article |
| id | KFUPM_19bef827b046573fa30ac869c91d5344 |
| identifier_str_mv | (2001) Downlink channel estimation for IMT-DS. Personal, Indoor and Mobile Radio Communications, 2001 12th IEEE International Symposium on, 2. |
| language_invalid_str_mv | en |
| network_acronym_str | KFUPM |
| network_name_str | King Fahd University of Petroleum and Minerals |
| oai_identifier_str | oai::14767 |
| publishDate | 2001 |
| publisher.none.fl_str_mv | IEEE |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | Downlink channel estimation for IMT-DSFaisal, S.Shah, A.Sheikh, A.U.H.unknownComputerIMT-DS system is an approved terrestrial radio interface standard for 3G mobile communication based on direct sequence code division multiple access (DS-CDMA). It employs a RAKE receiver to exploit multipath diversity. This paper discusses a new dimension in DS-CDMA channel estimation i.e., chip-level adaptive channel estimation. The DL channel of an IMT-DS system consists of time-multiplexed pilot and data symbols to facilitate coherent detection. To obtain channel estimates during pilot symbols, we propose a chip level adaptive channel estimation which performs better than the conventional method. For slow fading channels, like a pedestrian channel, zero order interpolation provides satisfactory performance. However, for fast fading channels, a common decision directed algorithm is applied whose performance is limited due to error propagation. The proposed schemes are assessed over the IMT-DS system by performing simulationsIEEE2001-092020ArticlePeerReviewedinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfapplication/mswordhttps://eprints.kfupm.edu.sa/id/eprint/14767/1/14767_1.pdfhttps://eprints.kfupm.edu.sa/id/eprint/14767/2/14767_2.doc (2001) Downlink channel estimation for IMT-DS. Personal, Indoor and Mobile Radio Communications, 2001 12th IEEE International Symposium on, 2. enenhttps://eprints.kfupm.edu.sa/id/eprint/14767/info:eu-repo/semantics/openAccessoai::147672019-11-01T14:07:23Z |
| spellingShingle | Downlink channel estimation for IMT-DS Faisal, S. Computer |
| status_str | publishedVersion |
| title | Downlink channel estimation for IMT-DS |
| title_full | Downlink channel estimation for IMT-DS |
| title_fullStr | Downlink channel estimation for IMT-DS |
| title_full_unstemmed | Downlink channel estimation for IMT-DS |
| title_short | Downlink channel estimation for IMT-DS |
| title_sort | Downlink channel estimation for IMT-DS |
| topic | Computer |
| url | https://eprints.kfupm.edu.sa/id/eprint/14767/1/14767_1.pdf https://eprints.kfupm.edu.sa/id/eprint/14767/2/14767_2.doc |