Dynamic resource allocation scheme for multiuser OFDM–UWB systems based on user's rate
According to original dynamic resource allocation algorithms,a new dynamic resource allocation algorithm for multiuser OFDM-UWB system based on users'rates was proposed to minimize the total transmitting power whil sa-tisfy requests for QoS and data rate of all users.Qual ty of the system was i...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2012-09-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/1000-436X(2012)09-0160-08/ |
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| _version_ | 1841539905404010496 |
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| author | Chao CHENG Zhi-hong QIAN Chun-lan LI Xue WANG |
| author_facet | Chao CHENG Zhi-hong QIAN Chun-lan LI Xue WANG |
| author_sort | Chao CHENG |
| collection | DOAJ |
| description | According to original dynamic resource allocation algorithms,a new dynamic resource allocation algorithm for multiuser OFDM-UWB system based on users'rates was proposed to minimize the total transmitting power whil sa-tisfy requests for QoS and data rate of all users.Qual ty of the system was improved running the subcarrier allocation and bit allocation algorithms based on fairness of users.In subcarrier allocation process,rate impact factor was used to com-pare influence of different subcarriers to a user.In allocation process,bits were allocated to each user's subcarriers first,then bits on each subcarriers were adjusted according to rate request of each user.In or to reduce the complexity system of the furthermore,a subcarrier and bit allocation scheme is employed through subcarrier grouping.Simulation results indicate that the algorithm can lower power consume,BER and operation complexity. |
| format | Article |
| id | doaj-art-6f7cc77cb1624b238b3558eada4ff857 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2012-09-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-6f7cc77cb1624b238b3558eada4ff8572025-01-14T06:32:41ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2012-09-013316016759664455Dynamic resource allocation scheme for multiuser OFDM–UWB systems based on user's rateChao CHENGZhi-hong QIANChun-lan LIXue WANGAccording to original dynamic resource allocation algorithms,a new dynamic resource allocation algorithm for multiuser OFDM-UWB system based on users'rates was proposed to minimize the total transmitting power whil sa-tisfy requests for QoS and data rate of all users.Qual ty of the system was improved running the subcarrier allocation and bit allocation algorithms based on fairness of users.In subcarrier allocation process,rate impact factor was used to com-pare influence of different subcarriers to a user.In allocation process,bits were allocated to each user's subcarriers first,then bits on each subcarriers were adjusted according to rate request of each user.In or to reduce the complexity system of the furthermore,a subcarrier and bit allocation scheme is employed through subcarrier grouping.Simulation results indicate that the algorithm can lower power consume,BER and operation complexity.http://www.joconline.com.cn/zh/article/doi/1000-436X(2012)09-0160-08/ultra-widebanddynamic resource allocationuser fairness |
| spellingShingle | Chao CHENG Zhi-hong QIAN Chun-lan LI Xue WANG Dynamic resource allocation scheme for multiuser OFDM–UWB systems based on user's rate Tongxin xuebao ultra-wideband dynamic resource allocation user fairness |
| title | Dynamic resource allocation scheme for multiuser OFDM–UWB systems based on user's rate |
| title_full | Dynamic resource allocation scheme for multiuser OFDM–UWB systems based on user's rate |
| title_fullStr | Dynamic resource allocation scheme for multiuser OFDM–UWB systems based on user's rate |
| title_full_unstemmed | Dynamic resource allocation scheme for multiuser OFDM–UWB systems based on user's rate |
| title_short | Dynamic resource allocation scheme for multiuser OFDM–UWB systems based on user's rate |
| title_sort | dynamic resource allocation scheme for multiuser ofdm uwb systems based on user s rate |
| topic | ultra-wideband dynamic resource allocation user fairness |
| url | http://www.joconline.com.cn/zh/article/doi/1000-436X(2012)09-0160-08/ |
| work_keys_str_mv | AT chaocheng dynamicresourceallocationschemeformultiuserofdmuwbsystemsbasedonusersrate AT zhihongqian dynamicresourceallocationschemeformultiuserofdmuwbsystemsbasedonusersrate AT chunlanli dynamicresourceallocationschemeformultiuserofdmuwbsystemsbasedonusersrate AT xuewang dynamicresourceallocationschemeformultiuserofdmuwbsystemsbasedonusersrate |