Contiguous Frequency-Time Resource Allocation and Scheduling for Wireless OFDMA Systems with QoS Support
The orthogonal frequency divisionmultiple access (OFDMA) scheme has been selected as a potential candidate formany emerging broadband wireless access standards. In this paper, a new joint scheduling and resource allocation scheme is proposed for the OFDMA systems using contiguous subcarrier permutat...
| Authors: | ; ; ; |
|---|---|
| Format: | Article |
| Status: | Published version |
| Publication date: | 2009 |
| Country: | España |
| Institution: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repository: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:20.500.14342/3326 |
| Online Access: | http://hdl.handle.net/20.500.14342/3326 http://doi.org/10.1155/2009/134579 |
| Access Level: | Open access |
| Keyword: | Telecomunicació de banda ampla, Sistemes de Multiplexatge per divisió de freqüència |
| _version_ | 1878733426320736256 |
|---|---|
| author | Gutiérrez González, Ismael |
| author2 | Bader, Faouzi Aquilué de Pedro, Ricard Pijoan Vidal, Joan Lluís |
| author2_role | author author author |
| author_browse | Aquilué de Pedro, Ricard Bader, Faouzi Gutiérrez González, Ismael Pijoan Vidal, Joan Lluís |
| author_facet | Gutiérrez González, Ismael Bader, Faouzi Aquilué de Pedro, Ricard Pijoan Vidal, Joan Lluís |
| author_role | author |
| collection | Recercat. Dipósit de la Recerca de Catalunya |
| description | The orthogonal frequency divisionmultiple access (OFDMA) scheme has been selected as a potential candidate formany emerging broadband wireless access standards. In this paper, a new joint scheduling and resource allocation scheme is proposed for the OFDMA systems using contiguous subcarrier permutation. The proposed resource allocation algorithm provides contiguous sets of frequency-time resource units following a rectangular shape yielding a reduction on the required burst signalling. The joint scheduling and resource allocation process is divided into two phases: the QoS requirements fulfilment and the input buffers emptying status. For each phase, a specific prioritization function is defined in order to obtain a trade-off between the fairness and the spectral efficiency maximization. The new prioritization scheme provides a reduction of 50% of the 99th percentile from the delivered packets delay in case of non real-time services, and 30% of the packet loss rate in case of real-time services compared to the proportional fair scheduling function. On the other hand, it is also demonstrated that using the rectangular data packing algorithm, the number of required bursts per frame can be reduced up to a few tenths without compromising the performance. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_55e86d3cbcc99bc581a2cc3c4bdc1cbf |
| institution | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| instname_str | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:recercat.cat:20.500.14342/3326 |
| publishDate | 2009 |
| publishDateSort | 2009 |
| publisher | Hindawi Publishing Corporation |
| publisherStr | Hindawi Publishing Corporation |
| reponame_str | Recercat. Dipósit de la Recerca de Catalunya |
| spelling | Contiguous Frequency-Time Resource Allocation and Scheduling for Wireless OFDMA Systems with QoS Support Gutiérrez González, Ismael Bader, Faouzi Aquilué de Pedro, Ricard Pijoan Vidal, Joan Lluís Telecomunicació de banda ampla, Sistemes de Multiplexatge per divisió de freqüència The orthogonal frequency divisionmultiple access (OFDMA) scheme has been selected as a potential candidate formany emerging broadband wireless access standards. In this paper, a new joint scheduling and resource allocation scheme is proposed for the OFDMA systems using contiguous subcarrier permutation. The proposed resource allocation algorithm provides contiguous sets of frequency-time resource units following a rectangular shape yielding a reduction on the required burst signalling. The joint scheduling and resource allocation process is divided into two phases: the QoS requirements fulfilment and the input buffers emptying status. For each phase, a specific prioritization function is defined in order to obtain a trade-off between the fairness and the spectral efficiency maximization. The new prioritization scheme provides a reduction of 50% of the 99th percentile from the delivered packets delay in case of non real-time services, and 30% of the packet loss rate in case of real-time services compared to the proportional fair scheduling function. On the other hand, it is also demonstrated that using the rectangular data packing algorithm, the number of required bursts per frame can be reduced up to a few tenths without compromising the performance. Hindawi Publishing Corporation http://hdl.handle.net/20.500.14342/3326 http://doi.org/10.1155/2009/134579 |
| spellingShingle | Contiguous Frequency-Time Resource Allocation and Scheduling for Wireless OFDMA Systems with QoS Support Gutiérrez González, Ismael Telecomunicació de banda ampla, Sistemes de Multiplexatge per divisió de freqüència |
| status_str | publishedVersion |
| title | Contiguous Frequency-Time Resource Allocation and Scheduling for Wireless OFDMA Systems with QoS Support |
| title_full | Contiguous Frequency-Time Resource Allocation and Scheduling for Wireless OFDMA Systems with QoS Support |
| title_fullStr | Contiguous Frequency-Time Resource Allocation and Scheduling for Wireless OFDMA Systems with QoS Support |
| title_full_unstemmed | Contiguous Frequency-Time Resource Allocation and Scheduling for Wireless OFDMA Systems with QoS Support |
| title_short | Contiguous Frequency-Time Resource Allocation and Scheduling for Wireless OFDMA Systems with QoS Support |
| title_sort | Contiguous Frequency-Time Resource Allocation and Scheduling for Wireless OFDMA Systems with QoS Support |
| topic | Telecomunicació de banda ampla, Sistemes de Multiplexatge per divisió de freqüència |
| topic_facet | Telecomunicació de banda ampla, Sistemes de Multiplexatge per divisió de freqüència |
| url | http://hdl.handle.net/20.500.14342/3326 http://doi.org/10.1155/2009/134579 |