Multicast resource allocation scheme considering source-coding characteristic in OFDM systems
Aiming to solve the problem that unicast or conventional multicast was incapable of make full use of the opening for wireless propagation in orthogonal frequency division multiplexing（OFDM） systems,a resource allocation scheme involving several multicast groups was proposed to maintain proportional...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2010-01-01
|
| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74646569/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841537708931940352 |
|---|---|
| author | XU Wen-jun HE Zhi-qiang NIU Kai LIN Jia-ru WU Wei-ling |
| author_facet | XU Wen-jun HE Zhi-qiang NIU Kai LIN Jia-ru WU Wei-ling |
| author_sort | XU Wen-jun |
| collection | DOAJ |
| description | Aiming to solve the problem that unicast or conventional multicast was incapable of make full use of the opening for wireless propagation in orthogonal frequency division multiplexing（OFDM） systems,a resource allocation scheme involving several multicast groups was proposed to maintain proportional fairness among groups.The proposed scheme consisted of subcarrier assignment algorithm and power allocation algorithm.The former was achieved by modi-fying the existing unicast subcarrier assignment algorithm,whilst optimal power allocation on condition that subcarrier assignment was determined was reached by the latter based on theoretically derived non-linear equations.Simulation re-sults show that the proposed scheme can ensure perfect fairness among different multicast groups,and remarkably out-performs conventional multicast in terms of rate-sum capacity.Combined with the low complexity,it is suitable for the application to voice/video multicast in actual wireless systems. |
| format | Article |
| id | doaj-art-2283495de7154cfc8754e1532130dfd9 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2010-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-2283495de7154cfc8754e1532130dfd92025-01-14T08:24:53ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2010-01-0131667474646569Multicast resource allocation scheme considering source-coding characteristic in OFDM systemsXU Wen-junHE Zhi-qiangNIU KaiLIN Jia-ruWU Wei-lingAiming to solve the problem that unicast or conventional multicast was incapable of make full use of the opening for wireless propagation in orthogonal frequency division multiplexing（OFDM） systems,a resource allocation scheme involving several multicast groups was proposed to maintain proportional fairness among groups.The proposed scheme consisted of subcarrier assignment algorithm and power allocation algorithm.The former was achieved by modi-fying the existing unicast subcarrier assignment algorithm,whilst optimal power allocation on condition that subcarrier assignment was determined was reached by the latter based on theoretically derived non-linear equations.Simulation re-sults show that the proposed scheme can ensure perfect fairness among different multicast groups,and remarkably out-performs conventional multicast in terms of rate-sum capacity.Combined with the low complexity,it is suitable for the application to voice/video multicast in actual wireless systems.http://www.joconline.com.cn/zh/article/74646569/OFDMmulticastresource allocationoptimal power allocation |
| spellingShingle | XU Wen-jun HE Zhi-qiang NIU Kai LIN Jia-ru WU Wei-ling Multicast resource allocation scheme considering source-coding characteristic in OFDM systems Tongxin xuebao OFDM multicast resource allocation optimal power allocation |
| title | Multicast resource allocation scheme considering source-coding characteristic in OFDM systems |
| title_full | Multicast resource allocation scheme considering source-coding characteristic in OFDM systems |
| title_fullStr | Multicast resource allocation scheme considering source-coding characteristic in OFDM systems |
| title_full_unstemmed | Multicast resource allocation scheme considering source-coding characteristic in OFDM systems |
| title_short | Multicast resource allocation scheme considering source-coding characteristic in OFDM systems |
| title_sort | multicast resource allocation scheme considering source coding characteristic in ofdm systems |
| topic | OFDM multicast resource allocation optimal power allocation |
| url | http://www.joconline.com.cn/zh/article/74646569/ |
| work_keys_str_mv | AT xuwenjun multicastresourceallocationschemeconsideringsourcecodingcharacteristicinofdmsystems AT hezhiqiang multicastresourceallocationschemeconsideringsourcecodingcharacteristicinofdmsystems AT niukai multicastresourceallocationschemeconsideringsourcecodingcharacteristicinofdmsystems AT linjiaru multicastresourceallocationschemeconsideringsourcecodingcharacteristicinofdmsystems AT wuweiling multicastresourceallocationschemeconsideringsourcecodingcharacteristicinofdmsystems |