藍芽微網(Bluetooth Piconet)是一種非常重要的小區域無線網路系統，但是此技術常使用共用頻段來通訊，時常造成資料傳輸的相互干擾現象，因而影響通訊的品質。本論文提出一個有效的方法，來解決這種因為受到無線干擾，而需要重新傳送資料的缺點，達到提高無線傳輸的效率。此方法是根據成功傳送之平均次數和分群最低可靠度，找出藍芽微網的分群規則。並且經由系統模擬實驗，發現群組間Slave的個數差距愈小時，傳輸資料的干擾現象愈少，因而資料傳輸的效率愈佳。另外，為了減少重傳所花費的時間和節省時槽，本論文亦提出一種封包合併的重傳法，並且依照不同可靠度來模擬封包的傳送情形。同時比較在「一般有重傳情況」和「封包合併重傳情況」下的總工作週期和所佔用的時槽數，結果發現所提出的封包合併重傳法比一般的重傳法效果更好。

Bluetooth Piconet has become an important area of research and development in the short-range wireless network system. It is well known that bluetooth causes disturbing interference since sharing frequency band is used in communication channels. This thesis proposes a new and efficient method to solve the retransmission problem that occurs in wireless interference. The proposed method is developed based on average transmit times and margin of grouping to find out the grouping rule of the Bluetooth Piconet. A computer simulation shows in this thesis that the performance of the proposed group assignment approach is much bettter than can be obtained by other conventional means. Furthermore, in order to reduce retransmit time and save time-slot, a new packet combine retransmit method is developed based on different reliability of packet's transmit conditions in this thesis. As a consequence, for total duty cycle and time slots, the proposed packet combine retransmit method obtains a better performance than the conventional retransmit method.

中文摘要………………………………………………………………….1
英文摘要………………………………………………………………….2
目錄……………………………………………………………………….3
圖目錄…………………………………………………………………….5
表目錄…………………………………………………………………….7
第一章 導論…………………………………………………………….10
1.1 研究動機..………………..………………………………………10
1.2 相關研究…………………………………………………………12
1.3 論文架構…………………………………………………………13
第二章 藍芽通訊系統之概要………………………………………….14
2.1 規格說明…………………………………………………………14
2.2 頻道跳躍………………………………………………………....16
2.3 應用領域…………………………………………………………18
第三章 藍芽連線和微網相關名詞…………………………………….19
3.1 連線………………………………………………………………19
3.2 微網(Piconet)…………………………………………………….20
3.3 Scatternet………………………………………………………….22
第四章 微網群組設定………………………………………………….23
4.1 接收端邏輯圖………………………..………….………….……23
4.2 傳送成功之平均次數T(n)分析…………………………………27
4.3 群組設定…………………………………………………………29
4.4 實驗結果分析……………………………………………………33
4.4.1 1∼7個 Slaves的平均傳送次數…………………………33
4.4.2 有7個Slaves的Piconet可能群組設定…………….…..35
4.4.3 有6個Slaves的Piconet可能群組設定………………...38
4.4.4 有5個Slaves的Piconet可能群組設定………………...41
4.4.5 有4個Slaves的Piconet可能群組設定………………...43
4.4.6 有3個Slaves的Piconet可能群組設定………………...44
4.4.7 有2個Slaves的Piconet可能群組設定………………...45
4.4 群組方法………………………………………….…………...…48
4.5 綜合討論……………………………………………….…….…..49
第五章 封包合併重傳法……………………………………………….51
5.1 封包合併原理………………………………….…………...……51
5.2 封包重傳法………………………………………………………53
5.2.1一個時槽封包的重傳…………………….…………….…53
5.2.2三個時槽封包的重傳…………………….…………….…56
5.2.3五個時槽封包的重傳…………………….…………….…58
5.3 實驗結果…………………………………………………………59
5.4 結論………………………………………………………………59
第六章 結論與未來研究……………………………………………….60
6.1 結論…………………………………………………………...….60
6.2 未來研究…………………………………………………………60
參考文獻…………………………………………………………..….…62

[1] http://www.bluetooth.com/
[2] http://www.bluetooth.net/
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[12] http://w3.itri.org.tw/library/board/newtech/8908.htm