Cross-layer design for radio resource allocation based on priority scheduling in OFDMA wireless access network
<p>Abstract</p> <p>The orthogonal frequency-division multiple access (OFDMA) system has the advantages of flexible subcarrier allocation and adaptive modulation with respect to channel conditions. However, transmission overhead is required in each frame to broadcast the arrangement...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2011-01-01
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| Series: | EURASIP Journal on Wireless Communications and Networking |
| Subjects: | |
| Online Access: | http://jwcn.eurasipjournals.com/content/2011/1/28 |
| _version_ | 1818682917811912704 |
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| author | Chen Yen-Wen Chen Chang-Wu Lin Yi-Shiou |
| author_facet | Chen Yen-Wen Chen Chang-Wu Lin Yi-Shiou |
| author_sort | Chen Yen-Wen |
| collection | DOAJ |
| description | <p>Abstract</p> <p>The orthogonal frequency-division multiple access (OFDMA) system has the advantages of flexible subcarrier allocation and adaptive modulation with respect to channel conditions. However, transmission overhead is required in each frame to broadcast the arrangement of radio resources to all mobile stations within the coverage of the same base station. This overhead greatly affects the utilization of valuable radio resources. In this paper, a cross layer scheme is proposed to reduce the number of traffic bursts at the downlink of an OFDMA wireless access network so that the overhead of the media access protocol (MAP) field can be minimized. The proposed scheme considers the priorities and the channel conditions of quality of service (QoS) traffic streams to arrange for them to be sent with minimum bursts in a heuristic manner. In addition, the trade-off between the degradation of the modulation level and the reduction of traffic bursts is investigated. Simulation results show that the proposed scheme can effectively reduce the traffic bursts and, therefore, increase resource utilization.</p> |
| first_indexed | 2024-12-17T10:26:28Z |
| format | Article |
| id | doaj.art-0a49fe59f7c04f3981eccf6b5527416b |
| institution | Directory Open Access Journal |
| issn | 1687-1472 1687-1499 |
| language | English |
| last_indexed | 2024-12-17T10:26:28Z |
| publishDate | 2011-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Wireless Communications and Networking |
| spelling | doaj.art-0a49fe59f7c04f3981eccf6b5527416b2022-12-21T21:52:39ZengSpringerOpenEURASIP Journal on Wireless Communications and Networking1687-14721687-14992011-01-012011128Cross-layer design for radio resource allocation based on priority scheduling in OFDMA wireless access networkChen Yen-WenChen Chang-WuLin Yi-Shiou<p>Abstract</p> <p>The orthogonal frequency-division multiple access (OFDMA) system has the advantages of flexible subcarrier allocation and adaptive modulation with respect to channel conditions. However, transmission overhead is required in each frame to broadcast the arrangement of radio resources to all mobile stations within the coverage of the same base station. This overhead greatly affects the utilization of valuable radio resources. In this paper, a cross layer scheme is proposed to reduce the number of traffic bursts at the downlink of an OFDMA wireless access network so that the overhead of the media access protocol (MAP) field can be minimized. The proposed scheme considers the priorities and the channel conditions of quality of service (QoS) traffic streams to arrange for them to be sent with minimum bursts in a heuristic manner. In addition, the trade-off between the degradation of the modulation level and the reduction of traffic bursts is investigated. Simulation results show that the proposed scheme can effectively reduce the traffic bursts and, therefore, increase resource utilization.</p>http://jwcn.eurasipjournals.com/content/2011/1/28schedulingmappingOFDMAoverheadQoSWiMAX |
| spellingShingle | Chen Yen-Wen Chen Chang-Wu Lin Yi-Shiou Cross-layer design for radio resource allocation based on priority scheduling in OFDMA wireless access network EURASIP Journal on Wireless Communications and Networking scheduling mapping OFDMA overhead QoS WiMAX |
| title | Cross-layer design for radio resource allocation based on priority scheduling in OFDMA wireless access network |
| title_full | Cross-layer design for radio resource allocation based on priority scheduling in OFDMA wireless access network |
| title_fullStr | Cross-layer design for radio resource allocation based on priority scheduling in OFDMA wireless access network |
| title_full_unstemmed | Cross-layer design for radio resource allocation based on priority scheduling in OFDMA wireless access network |
| title_short | Cross-layer design for radio resource allocation based on priority scheduling in OFDMA wireless access network |
| title_sort | cross layer design for radio resource allocation based on priority scheduling in ofdma wireless access network |
| topic | scheduling mapping OFDMA overhead QoS WiMAX |
| url | http://jwcn.eurasipjournals.com/content/2011/1/28 |
| work_keys_str_mv | AT chenyenwen crosslayerdesignforradioresourceallocationbasedonpriorityschedulinginofdmawirelessaccessnetwork AT chenchangwu crosslayerdesignforradioresourceallocationbasedonpriorityschedulinginofdmawirelessaccessnetwork AT linyishiou crosslayerdesignforradioresourceallocationbasedonpriorityschedulinginofdmawirelessaccessnetwork |