Off-body channel modelling and diversity reception approach using wearable circularly polarized antenna
An anti-fading diversity receiving approach to body-area communications was proposed.A pair of opposite-sense called planar endfire circularly polarized antennas (PECPA) was employed to implement the receiving approach.The wide beamwidth CP characteristic of the PECPA was used to mitigate the height...
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| Format: | Article |
| Language: | zho |
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China InfoCom Media Group
2018-06-01
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| Series: | 物联网学报 |
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| Online Access: | http://www.wlwxb.com.cn/zh/article/doi/10.11959/j.issn.2096-3750.2018.00051/ |
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| _version_ | 1841531282221170688 |
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| author | Wenjun LYU Pengfei CUI Hongbo ZHU |
| author_facet | Wenjun LYU Pengfei CUI Hongbo ZHU |
| author_sort | Wenjun LYU |
| collection | DOAJ |
| description | An anti-fading diversity receiving approach to body-area communications was proposed.A pair of opposite-sense called planar endfire circularly polarized antennas (PECPA) was employed to implement the receiving approach.The wide beamwidth CP characteristic of the PECPA was used to mitigate the height-dependent fadings.Antenna designs and body-area propagation measurements were performed at 5.8 GHz-band.An off-body channel model was established,and a channel simulator was accordingly developed.All results were compared to the cases using linearly polarized (LP) antennas diversity on equal conditions.The results show that the equal-gain-combination (EGC) signal levels for CP diversity reception are 2.1 dB greater than the LP one (with polarization mismatching loss removed).The rootmean-square delay spread (RDS) and number of multi-path component (MPC) can be significantly reduced.In addition,the simulated bit error rate (BER) of the body-area communication system using CP diversity can be improved by one order of magnitude compared the LP diversity one.The correctness and effectiveness of the proposed approach has been evidently validated by the experimental and simulated results. |
| format | Article |
| id | doaj-art-c9bcdfeeb6bf48248eb481138e456ba0 |
| institution | Kabale University |
| issn | 2096-3750 |
| language | zho |
| publishDate | 2018-06-01 |
| publisher | China InfoCom Media Group |
| record_format | Article |
| series | 物联网学报 |
| spelling | doaj-art-c9bcdfeeb6bf48248eb481138e456ba02025-01-15T02:52:01ZzhoChina InfoCom Media Group物联网学报2096-37502018-06-012414859643210Off-body channel modelling and diversity reception approach using wearable circularly polarized antennaWenjun LYUPengfei CUIHongbo ZHUAn anti-fading diversity receiving approach to body-area communications was proposed.A pair of opposite-sense called planar endfire circularly polarized antennas (PECPA) was employed to implement the receiving approach.The wide beamwidth CP characteristic of the PECPA was used to mitigate the height-dependent fadings.Antenna designs and body-area propagation measurements were performed at 5.8 GHz-band.An off-body channel model was established,and a channel simulator was accordingly developed.All results were compared to the cases using linearly polarized (LP) antennas diversity on equal conditions.The results show that the equal-gain-combination (EGC) signal levels for CP diversity reception are 2.1 dB greater than the LP one (with polarization mismatching loss removed).The rootmean-square delay spread (RDS) and number of multi-path component (MPC) can be significantly reduced.In addition,the simulated bit error rate (BER) of the body-area communication system using CP diversity can be improved by one order of magnitude compared the LP diversity one.The correctness and effectiveness of the proposed approach has been evidently validated by the experimental and simulated results.http://www.wlwxb.com.cn/zh/article/doi/10.11959/j.issn.2096-3750.2018.00051/planar endfire circularly polarized antenna (PECPA)wearable antennaoff-body channeldiversity reception,anti-fading |
| spellingShingle | Wenjun LYU Pengfei CUI Hongbo ZHU Off-body channel modelling and diversity reception approach using wearable circularly polarized antenna 物联网学报 planar endfire circularly polarized antenna (PECPA) wearable antenna off-body channel diversity reception,anti-fading |
| title | Off-body channel modelling and diversity reception approach using wearable circularly polarized antenna |
| title_full | Off-body channel modelling and diversity reception approach using wearable circularly polarized antenna |
| title_fullStr | Off-body channel modelling and diversity reception approach using wearable circularly polarized antenna |
| title_full_unstemmed | Off-body channel modelling and diversity reception approach using wearable circularly polarized antenna |
| title_short | Off-body channel modelling and diversity reception approach using wearable circularly polarized antenna |
| title_sort | off body channel modelling and diversity reception approach using wearable circularly polarized antenna |
| topic | planar endfire circularly polarized antenna (PECPA) wearable antenna off-body channel diversity reception,anti-fading |
| url | http://www.wlwxb.com.cn/zh/article/doi/10.11959/j.issn.2096-3750.2018.00051/ |
| work_keys_str_mv | AT wenjunlyu offbodychannelmodellinganddiversityreceptionapproachusingwearablecircularlypolarizedantenna AT pengfeicui offbodychannelmodellinganddiversityreceptionapproachusingwearablecircularlypolarizedantenna AT hongbozhu offbodychannelmodellinganddiversityreceptionapproachusingwearablecircularlypolarizedantenna |