Physical Layer Proposal Design and Interference Analysis Based on Chinese Medical Band in Wireless Body Area Network
-
摘要: 該文基于中國醫(yī)療體域網(wǎng)的專用頻段提出了采用擴(kuò)頻的OQPSK調(diào)制方案，并在多種干擾的背景下進(jìn)行分析，仿真結(jié)果表明該方案對寬帶干擾具有較好的抑制性能，但是由于接收端幀檢測算法虛警率較高而對窄帶干擾較為敏感。為此提出基于兩次延遲自相關(guān)的幀檢測算法，并驗證該算法對寬帶和窄帶干擾都有較好的抑制性能。該文的研究成果可以為我國無線體域網(wǎng)標(biāo)準(zhǔn)制定提供技術(shù)參考，目前該調(diào)制方案已被IEEE802.15.4n采納。
-
關(guān)鍵詞:
- 無線體域網(wǎng) /
- 干擾分析 /
- OQPSK /
- 幀檢測 /
- 可靠性
Abstract: An OQPSK modulation scheme used spread spectrum is proposed which is based on the Chinese medical band. The analysis is done under variety of interference, the simulation results indicate that this scheme has good performance of the broadband interference suppression, but is sensitive to the narrowband interference because of high false alarm rates of frame detection. A new frame detection algorithm based on twice delayed-autocorrelation is proposed, and it is verified that the algorithm exhibits better performance for narrowband and wideband interferences. The recording results of this paper can provide technical reference for standards development of wireless body area network standards. Currently, this scheme has been adopted in IEEE802.15.4n.-
Key words:
- Wireless Body Area Network (WBAN) /
- Interference analysis /
- OQPSK /
- Frame detection /
- Reliability
-
計量
- 文章訪問數(shù): 1390
- HTML全文瀏覽量: 149
- PDF下載量: 552
- 被引次數(shù): 0
下載:
