Effective Scheme of Channel Tracking and Estimation for Mobile WiMAX DL-PUSC System
This paper introduces an effective joint scheme of channel estimation and tracking for downlink partial usage of subchannel (DL-PUSC) mode of mobile WiMAX system. Based on the pilot pattern of this particular system, some channel estimation methods including conventional interpolations and a more fa...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Wiley
2010-01-01
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| Series: | Journal of Computer Systems, Networks, and Communications |
| Online Access: | http://dx.doi.org/10.1155/2010/806279 |
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| _version_ | 1832562018946646016 |
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| author | Phuong Thi Thu Pham Tomohisa Wada |
| author_facet | Phuong Thi Thu Pham Tomohisa Wada |
| author_sort | Phuong Thi Thu Pham |
| collection | DOAJ |
| description | This paper introduces an effective joint scheme of channel estimation and tracking for downlink partial usage of subchannel (DL-PUSC) mode of mobile WiMAX system. Based on the pilot pattern of this particular system, some channel estimation methods including conventional interpolations and a more favorable least-squares line fitting (LSLF) technique are comparatively studied. Besides, channel estimation performance can be remarkably improved by taking advantage of channel tracking derived from the preamble symbol. System performances in terms of packet error rate (PER) and user link throughput are investigated in various channels adopted from the well-known ITU models for mobile environments. Simulation results show a significant performance enhancement when the proposed joint scheme is utilized, at least 5 dB, compared to only commonly used channel estimation approaches. |
| format | Article |
| id | doaj-art-ea7d17788aca4950a4fa79894f316956 |
| institution | Kabale University |
| issn | 1687-7381 1687-739X |
| language | English |
| publishDate | 2010-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Computer Systems, Networks, and Communications |
| spelling | doaj-art-ea7d17788aca4950a4fa79894f3169562025-02-03T01:23:42ZengWileyJournal of Computer Systems, Networks, and Communications1687-73811687-739X2010-01-01201010.1155/2010/806279806279Effective Scheme of Channel Tracking and Estimation for Mobile WiMAX DL-PUSC SystemPhuong Thi Thu Pham0Tomohisa Wada1Information Engineering Department, Graduate School of Engineering and Science, University of The Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, JapanInformation Engineering Department, Graduate School of Engineering and Science, University of The Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, JapanThis paper introduces an effective joint scheme of channel estimation and tracking for downlink partial usage of subchannel (DL-PUSC) mode of mobile WiMAX system. Based on the pilot pattern of this particular system, some channel estimation methods including conventional interpolations and a more favorable least-squares line fitting (LSLF) technique are comparatively studied. Besides, channel estimation performance can be remarkably improved by taking advantage of channel tracking derived from the preamble symbol. System performances in terms of packet error rate (PER) and user link throughput are investigated in various channels adopted from the well-known ITU models for mobile environments. Simulation results show a significant performance enhancement when the proposed joint scheme is utilized, at least 5 dB, compared to only commonly used channel estimation approaches.http://dx.doi.org/10.1155/2010/806279 |
| spellingShingle | Phuong Thi Thu Pham Tomohisa Wada Effective Scheme of Channel Tracking and Estimation for Mobile WiMAX DL-PUSC System Journal of Computer Systems, Networks, and Communications |
| title | Effective Scheme of Channel Tracking and Estimation for Mobile WiMAX DL-PUSC System |
| title_full | Effective Scheme of Channel Tracking and Estimation for Mobile WiMAX DL-PUSC System |
| title_fullStr | Effective Scheme of Channel Tracking and Estimation for Mobile WiMAX DL-PUSC System |
| title_full_unstemmed | Effective Scheme of Channel Tracking and Estimation for Mobile WiMAX DL-PUSC System |
| title_short | Effective Scheme of Channel Tracking and Estimation for Mobile WiMAX DL-PUSC System |
| title_sort | effective scheme of channel tracking and estimation for mobile wimax dl pusc system |
| url | http://dx.doi.org/10.1155/2010/806279 |
| work_keys_str_mv | AT phuongthithupham effectiveschemeofchanneltrackingandestimationformobilewimaxdlpuscsystem AT tomohisawada effectiveschemeofchanneltrackingandestimationformobilewimaxdlpuscsystem |