Time delay estimation algorithm of narrow band internet of things based on inter-cell interference cancellation
Aiming at the characteristics of NB-IoT such as low power consumption,low cost and low sampling rate,an NB-IoT delay estimation algorithm based on inter-cell interference cancellation was proposed.To gradually eliminate the interaction between signals in each cell,an inter-cell iterative interferenc...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2019-02-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2019038/ |
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| _version_ | 1841539463493189632 |
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| author | Hong TANG Hongyan MOU Haolan YANG |
| author_facet | Hong TANG Hongyan MOU Haolan YANG |
| author_sort | Hong TANG |
| collection | DOAJ |
| description | Aiming at the characteristics of NB-IoT such as low power consumption,low cost and low sampling rate,an NB-IoT delay estimation algorithm based on inter-cell interference cancellation was proposed.To gradually eliminate the interaction between signals in each cell,an inter-cell iterative interference cancellation algorithm was considered.In each iteration,the idea of time-frequency cross-correlation overlapping was introduced on the basis of traditional correlation algorithms to break through the limitations of the sampling rate and further improve the accuracy of time delay estimation.At the same time,a first-arrival-path (FAP) searching algorithm based on noise threshold was used to suppress multipath effects.Through experimental simulation,the results show that the proposed algorithm can significantly improve the time delay estimation accuracy of NB-IoT on the basis of related algorithms. |
| format | Article |
| id | doaj-art-e1466cf9401049fa9482000f2b365d46 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2019-02-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-e1466cf9401049fa9482000f2b365d462025-01-14T07:16:19ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2019-02-01409210159725140Time delay estimation algorithm of narrow band internet of things based on inter-cell interference cancellationHong TANGHongyan MOUHaolan YANGAiming at the characteristics of NB-IoT such as low power consumption,low cost and low sampling rate,an NB-IoT delay estimation algorithm based on inter-cell interference cancellation was proposed.To gradually eliminate the interaction between signals in each cell,an inter-cell iterative interference cancellation algorithm was considered.In each iteration,the idea of time-frequency cross-correlation overlapping was introduced on the basis of traditional correlation algorithms to break through the limitations of the sampling rate and further improve the accuracy of time delay estimation.At the same time,a first-arrival-path (FAP) searching algorithm based on noise threshold was used to suppress multipath effects.Through experimental simulation,the results show that the proposed algorithm can significantly improve the time delay estimation accuracy of NB-IoT on the basis of related algorithms.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2019038/NB-IoTtime delay estimationinter-cell interference cancellationfirst arrival path searching |
| spellingShingle | Hong TANG Hongyan MOU Haolan YANG Time delay estimation algorithm of narrow band internet of things based on inter-cell interference cancellation Tongxin xuebao NB-IoT time delay estimation inter-cell interference cancellation first arrival path searching |
| title | Time delay estimation algorithm of narrow band internet of things based on inter-cell interference cancellation |
| title_full | Time delay estimation algorithm of narrow band internet of things based on inter-cell interference cancellation |
| title_fullStr | Time delay estimation algorithm of narrow band internet of things based on inter-cell interference cancellation |
| title_full_unstemmed | Time delay estimation algorithm of narrow band internet of things based on inter-cell interference cancellation |
| title_short | Time delay estimation algorithm of narrow band internet of things based on inter-cell interference cancellation |
| title_sort | time delay estimation algorithm of narrow band internet of things based on inter cell interference cancellation |
| topic | NB-IoT time delay estimation inter-cell interference cancellation first arrival path searching |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2019038/ |
| work_keys_str_mv | AT hongtang timedelayestimationalgorithmofnarrowbandinternetofthingsbasedonintercellinterferencecancellation AT hongyanmou timedelayestimationalgorithmofnarrowbandinternetofthingsbasedonintercellinterferencecancellation AT haolanyang timedelayestimationalgorithmofnarrowbandinternetofthingsbasedonintercellinterferencecancellation |