Low-complexity despreading scheme with repetition code for wireless body area networks
To improve the reliability of data transmission and reduce the complexity of the narrow band receiver for wireless body area networks(WBAN),spreading with repetition code is used in IEEE 802.15.6 standard.A despreading structure in which the metrics of reliability were calculated selectively accordi...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2015-08-01
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| Series: | Tongxin xuebao |
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| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015207/ |
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| _version_ | 1841539680182468608 |
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| author | Yu CHI Lan CHEN Chao LV |
| author_facet | Yu CHI Lan CHEN Chao LV |
| author_sort | Yu CHI |
| collection | DOAJ |
| description | To improve the reliability of data transmission and reduce the complexity of the narrow band receiver for wireless body area networks(WBAN),spreading with repetition code is used in IEEE 802.15.6 standard.A despreading structure in which the metrics of reliability were calculated selectively according to the dynamic threshold was designed.Combined with hard decision,hard threshold-combine and hard threshold-delete despreading methods by simplifying maximal ratio combining and generalized minimum distance principle respectively were proposed,which had low complexity and near-optimal performance.The theoretical analysis and simulation results show that compared to despreading based on maximum likelihood method,the spreading gain of the proposed methods is close to the theoretical value and the computational complexity can be reduced by 86% at most under high SNR circumstances. |
| format | Article |
| id | doaj-art-b5f873e2a79b455a8642f23a5d33044c |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2015-08-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-b5f873e2a79b455a8642f23a5d33044c2025-01-14T06:53:25ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2015-08-013614615259695057Low-complexity despreading scheme with repetition code for wireless body area networksYu CHILan CHENChao LVTo improve the reliability of data transmission and reduce the complexity of the narrow band receiver for wireless body area networks(WBAN),spreading with repetition code is used in IEEE 802.15.6 standard.A despreading structure in which the metrics of reliability were calculated selectively according to the dynamic threshold was designed.Combined with hard decision,hard threshold-combine and hard threshold-delete despreading methods by simplifying maximal ratio combining and generalized minimum distance principle respectively were proposed,which had low complexity and near-optimal performance.The theoretical analysis and simulation results show that compared to despreading based on maximum likelihood method,the spreading gain of the proposed methods is close to the theoretical value and the computational complexity can be reduced by 86% at most under high SNR circumstances.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015207/despreadingrepetition codesoft-decisionlow-complexitywireless body area networks |
| spellingShingle | Yu CHI Lan CHEN Chao LV Low-complexity despreading scheme with repetition code for wireless body area networks Tongxin xuebao despreading repetition code soft-decision low-complexity wireless body area networks |
| title | Low-complexity despreading scheme with repetition code for wireless body area networks |
| title_full | Low-complexity despreading scheme with repetition code for wireless body area networks |
| title_fullStr | Low-complexity despreading scheme with repetition code for wireless body area networks |
| title_full_unstemmed | Low-complexity despreading scheme with repetition code for wireless body area networks |
| title_short | Low-complexity despreading scheme with repetition code for wireless body area networks |
| title_sort | low complexity despreading scheme with repetition code for wireless body area networks |
| topic | despreading repetition code soft-decision low-complexity wireless body area networks |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015207/ |
| work_keys_str_mv | AT yuchi lowcomplexitydespreadingschemewithrepetitioncodeforwirelessbodyareanetworks AT lanchen lowcomplexitydespreadingschemewithrepetitioncodeforwirelessbodyareanetworks AT chaolv lowcomplexitydespreadingschemewithrepetitioncodeforwirelessbodyareanetworks |