在無線網路中設計並實現傳輸記錄結果來達到動態切換頻譜通道

Design and Implementation of Log-based Dynamic Channel Switching in Wireless Communication Networks

吳杰恩(Jie-En Wu)

指導教授 ： 林柏江

元智大學/電機通訊學院/通訊工程學系/碩士(2013年)

https://doi.org/10.6838/YZU.2013.00345

摘要

本論文研製之在感知無線網路(Cognitive Radio Network)環境中，使用者如何有效的偵測或是爭取到有限的無線區域網路頻寬。雖然IEEE802.11標準規範可提供多重頻道給無線區域網路者使用，但其制定的媒介存取控制通訊協定只限定於單一通道進行資料傳輸。利用CSMA/CA的機制可避免碰撞而造成資料的遺失，正在傳輸連結鄰近節點須等待連結傳送完成後方可建立通訊連結，最後討論實做出使用CSMA/CA機制比較兩種不同調變方式以及干擾源距離使用者在通道的使用上相互影響的關係，讓使用者可以在不同的環境中使用最佳的調變方式或是最理想的功率達到資料傳輸。

關鍵字

感知無線電 ； CSMA/CA ； 多重通道上的存取 ； 無線環境的多重通道

並列摘要

In this Paper,we investigate in cognitive radio networks how does communication user effectively sense and complete for the wireless network transmission bandwidth is a very important subject. Although the IEEE802.11 standard provides multiple channels for the Wireless Local Area Network (WLAN), but its Medium Access Control (MAC) is designed for transmission on single channel. Using CSMA/CA scheme can avoid collision and packet loss. However, the neighbors of transmitting nodes must wait until the transmission is over to establish their own communication links. Final discussion to complete use of CSMA / CA for comparing two different modulation methods and interference source from the user in the use of the channel between mutual influence. Allows users in different environments using the best or optimal modulation power of data transfer.

並列關鍵字

Cognitive Radio ； CSMA/CA ； Multiple Channels ； Wireless Multiple Channels

參考文獻

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