ISM Coexistence of Bluetooth and Wireless LAN Using Joint Detection
碩士 === 臺灣大學 === 電子工程學研究所 === 98 === Currently, wireless local area network (Wireless LAN) and Bluetooth are two important standards in the wireless communication network. They are broadly used and are irreplaceable. However, IEEE 802.11g in Wireless LAN and Bluetooth both utilize 2.4 GHz ISM band. M...
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ndltd-TW-098NTU054280912015-10-13T18:49:40Z http://ndltd.ncl.edu.tw/handle/81190844296400537977 ISM Coexistence of Bluetooth and Wireless LAN Using Joint Detection 適用於無線區域網路與藍芽共存系統中共同偵測器之設計 Ching-Ting Huang 黃敬婷 碩士 臺灣大學 電子工程學研究所 98 Currently, wireless local area network (Wireless LAN) and Bluetooth are two important standards in the wireless communication network. They are broadly used and are irreplaceable. However, IEEE 802.11g in Wireless LAN and Bluetooth both utilize 2.4 GHz ISM band. Mutual interference occurs while the two systems modulate signals to the same spectrum at the same time. This is so-called the ISM coexistence issue. The general solution is to avoid simultaneous system operation in the time or frequency domain. By doing this, the throughput and spectral efficiency are sacrificed for the collision avoidance. Therefore, joint detection is proposed as a better solution to jointly detect Wi-Fi and Bluetooth in order to reduce the interference. Maximum likelihood is applied in joint detection to search all possible Wi-Fi and Bluetooth signal through a built-in Bluetooth library. As the most likely Bluetooth is found, it is subtracted from the received signal to reduce the interference. The simulation results under different simulation environments: with perfect channel state information (CSI) knowledge and considering the real coexistence environment are proposed to show the effectiveness of the joint detector dealing with ISM coexistence. Tzi-Dar Chiueh 闕志達 2010 學位論文 ; thesis 79 zh-TW |
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碩士 === 臺灣大學 === 電子工程學研究所 === 98 === Currently, wireless local area network (Wireless LAN) and Bluetooth are two important standards in the wireless communication network. They are broadly used and are irreplaceable. However, IEEE 802.11g in Wireless LAN and Bluetooth both utilize 2.4 GHz ISM band. Mutual interference occurs while the two systems modulate signals to the same spectrum at the same time. This is so-called the ISM coexistence issue. The general solution is to avoid simultaneous system operation in the time or frequency domain. By doing this, the throughput and spectral efficiency are sacrificed for the collision avoidance. Therefore, joint detection is proposed as a better solution to jointly detect Wi-Fi and Bluetooth in order to reduce the interference.
Maximum likelihood is applied in joint detection to search all possible Wi-Fi and Bluetooth signal through a built-in Bluetooth library. As the most likely Bluetooth is found, it is subtracted from the received signal to reduce the interference. The simulation results under different simulation environments: with perfect channel state information (CSI) knowledge and considering the real coexistence environment are proposed to show the effectiveness of the joint detector dealing with ISM coexistence.
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author2 |
Tzi-Dar Chiueh |
author_facet |
Tzi-Dar Chiueh Ching-Ting Huang 黃敬婷 |
author |
Ching-Ting Huang 黃敬婷 |
spellingShingle |
Ching-Ting Huang 黃敬婷 ISM Coexistence of Bluetooth and Wireless LAN Using Joint Detection |
author_sort |
Ching-Ting Huang |
title |
ISM Coexistence of Bluetooth and Wireless LAN Using Joint Detection |
title_short |
ISM Coexistence of Bluetooth and Wireless LAN Using Joint Detection |
title_full |
ISM Coexistence of Bluetooth and Wireless LAN Using Joint Detection |
title_fullStr |
ISM Coexistence of Bluetooth and Wireless LAN Using Joint Detection |
title_full_unstemmed |
ISM Coexistence of Bluetooth and Wireless LAN Using Joint Detection |
title_sort |
ism coexistence of bluetooth and wireless lan using joint detection |
publishDate |
2010 |
url |
http://ndltd.ncl.edu.tw/handle/81190844296400537977 |
work_keys_str_mv |
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