Coexist WiFi for ZigBee Networks With Fine-Grained Frequency Approach
The widely deployed WiFi APs and ZigBee devices make the coexistence for these two networks more pervasive than ever. Previous solutions focus on the contention resolution in time domain, but would lead to the underutilized frequency resources. However, for frequency domain schemes, to enable effici...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2019-01-01
|
| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8840838/ |
| _version_ | 1818621644208340992 |
|---|---|
| author | Ping Li Yubo Yan Panlong Yang Xiang-Yang Li Qiongzheng Lin |
| author_facet | Ping Li Yubo Yan Panlong Yang Xiang-Yang Li Qiongzheng Lin |
| author_sort | Ping Li |
| collection | DOAJ |
| description | The widely deployed WiFi APs and ZigBee devices make the coexistence for these two networks more pervasive than ever. Previous solutions focus on the contention resolution in time domain, but would lead to the underutilized frequency resources. However, for frequency domain schemes, to enable efficient coexistence for WiFi and ZigBee networks, the WiFi nodes or ZigBee nodes have to select the appropriate channel for transmission. Such scheme will need strict cooperations among these two independent systems, and could not work with the conventional legacy systems seamlessly. In this paper, we propose a frequency overlay approach named COFFEE (COexist wiFi For zigbEE networks), where subcarriers interfering with ZigBee transmissions are nullified by WiFi. According to our basic evaluations, due to the relatively robust feature in WiFi/OFDM design, nullifying small portion of subcarriers would affect the WiFi performance slightly, but could improve the capability for coexistence significantly. Thus by using COFFEE, WiFi and ZigBee nodes can transmit their packets concurrently without any coordination. Also, COFFEE and conventional legacy WiFi systems could work together seamlessly. Furthermore, we implement COFFEE with USRP software radio platform and evaluate the performance under real wireless network scenarios. The extensive evaluations show that compared to the coexistence schemes in time domain, COFFEE is able to increase the network throughput by more than 300%. Even when the ZigBee node never knows the transmission time of WiFi packet, it still can provide concurrent lossless transmission by using COFFEE with only 10% to 15% WiFi throughput reduction. |
| first_indexed | 2024-12-16T18:12:33Z |
| format | Article |
| id | doaj.art-5be155e519ca4de680f9aa6af09ac333 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-16T18:12:33Z |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-5be155e519ca4de680f9aa6af09ac3332022-12-21T22:21:44ZengIEEEIEEE Access2169-35362019-01-01713536313537610.1109/ACCESS.2019.29419638840838Coexist WiFi for ZigBee Networks With Fine-Grained Frequency ApproachPing Li0https://orcid.org/0000-0003-1343-8768Yubo Yan1Panlong Yang2Xiang-Yang Li3Qiongzheng Lin4University of Science and Technology of China, Hefei, ChinaUniversity of Science and Technology of China, Hefei, ChinaUniversity of Science and Technology of China, Hefei, ChinaUniversity of Science and Technology of China, Hefei, ChinaUniversity of Science and Technology of China, Hefei, ChinaThe widely deployed WiFi APs and ZigBee devices make the coexistence for these two networks more pervasive than ever. Previous solutions focus on the contention resolution in time domain, but would lead to the underutilized frequency resources. However, for frequency domain schemes, to enable efficient coexistence for WiFi and ZigBee networks, the WiFi nodes or ZigBee nodes have to select the appropriate channel for transmission. Such scheme will need strict cooperations among these two independent systems, and could not work with the conventional legacy systems seamlessly. In this paper, we propose a frequency overlay approach named COFFEE (COexist wiFi For zigbEE networks), where subcarriers interfering with ZigBee transmissions are nullified by WiFi. According to our basic evaluations, due to the relatively robust feature in WiFi/OFDM design, nullifying small portion of subcarriers would affect the WiFi performance slightly, but could improve the capability for coexistence significantly. Thus by using COFFEE, WiFi and ZigBee nodes can transmit their packets concurrently without any coordination. Also, COFFEE and conventional legacy WiFi systems could work together seamlessly. Furthermore, we implement COFFEE with USRP software radio platform and evaluate the performance under real wireless network scenarios. The extensive evaluations show that compared to the coexistence schemes in time domain, COFFEE is able to increase the network throughput by more than 300%. Even when the ZigBee node never knows the transmission time of WiFi packet, it still can provide concurrent lossless transmission by using COFFEE with only 10% to 15% WiFi throughput reduction.https://ieeexplore.ieee.org/document/8840838/CoexistenceWiFiZigBeeOFDM |
| spellingShingle | Ping Li Yubo Yan Panlong Yang Xiang-Yang Li Qiongzheng Lin Coexist WiFi for ZigBee Networks With Fine-Grained Frequency Approach IEEE Access Coexistence WiFi ZigBee OFDM |
| title | Coexist WiFi for ZigBee Networks With Fine-Grained Frequency Approach |
| title_full | Coexist WiFi for ZigBee Networks With Fine-Grained Frequency Approach |
| title_fullStr | Coexist WiFi for ZigBee Networks With Fine-Grained Frequency Approach |
| title_full_unstemmed | Coexist WiFi for ZigBee Networks With Fine-Grained Frequency Approach |
| title_short | Coexist WiFi for ZigBee Networks With Fine-Grained Frequency Approach |
| title_sort | coexist wifi for zigbee networks with fine grained frequency approach |
| topic | Coexistence WiFi ZigBee OFDM |
| url | https://ieeexplore.ieee.org/document/8840838/ |
| work_keys_str_mv | AT pingli coexistwififorzigbeenetworkswithfinegrainedfrequencyapproach AT yuboyan coexistwififorzigbeenetworkswithfinegrainedfrequencyapproach AT panlongyang coexistwififorzigbeenetworkswithfinegrainedfrequencyapproach AT xiangyangli coexistwififorzigbeenetworkswithfinegrainedfrequencyapproach AT qiongzhenglin coexistwififorzigbeenetworkswithfinegrainedfrequencyapproach |