空中載具行動隨意網路之鏈接層設計與效能評估

The Link Layer Design and Performance Evaluation of Aerial Vehicle Ad-hoc Networks

李展進(Chan-Chin Li)

指導教授 ： 陳耀宗

國立交通大學/資訊學院/資訊科學與工程研究所/碩士(2020年)

摘要

隨著數位科技與硬體技術快速的發展，各設備間使用無線行動隨意網路互相通訊來解決各式問題的需求日與遽增，例如: 利用無人機群做電力線例行檢查、節慶活動的空中商業表演秀以及極端情況的搜救任務等，所以無線行動隨意通訊網路(MANET)的多節點轉送路由、自我組織運行及無中央管控特性就成為網路尖端研究熱門且重要的議題。
而戰術目標網路(TTNT)也不例外，從1940年發展起的戰術網路，繼承行動隨意網路的特性，但有通訊場域大、網路拓樸變化迅速、節點速度快及節點數目少的區別，而在最新的戰術網路中，常見使用基於IP的主動式路由層及基於TxRxN和資料優先權的SPMA數據連接層，以改善前一代戰術目標網路延遲不夠低與傳遞訊息不甚可靠的缺點。
在本論文中，我們以OLSR路由協定，在資料鏈結層實作SPMA中TxRxN演算法及在實體層使用具有資料復原卷積碼的方式組成節點及網路，並使用開源網路模擬器OMNeT++做網路效能模擬，針對鏈結層TxRxN演算法於訊框減少碰撞及抗干擾能力做探討，提供數據驗證以改善戰術網路。

關鍵字

戰術網路 ； 空中行動隨意網路 ； TxRxN ； OMNeT++

並列摘要

With the quick development of digital and hardware technologies in wireless networks, there are more and more requirements that use the mobile ad-hoc network wireless (MANET) communication between nodes for cooperation in missions and problem solving, like electric power lines inspection, search and rescue, and commercial show of drone. So, the multi-hop routing, self-organization and non-central management characteristics of MANET become a hot and important research topic.
There is no exception on Tactical Targeting Networks Technology (TTNT). TTNT research was started in 1940s and keeps evolving till now. Nowadays TTNT inherits the concept of MANET but features other characteristics including large scale, highly dynamic topology change, fast moving nodes and spare nodes distribution. The newest TTNT commonly use the proactive IP-based network layer and the SPMA data link which is based on TxRxN and data-priority to improve the inefficiency of delay and reliability in previous data link.
In this thesis, we composed the fast moving node and dynamic network by using OLSR routing protocol, implemented TxRxN algorithm of SPMA in mac layer and convolutional coder which supported the bit recovering mechanism at physical layer. The network performance simulation is done based on OMNeT++ open source network simulator. And we evaluated the collision reduction and anti-interference impact of TxRxN algorithm for improving the TTNT performance.

並列關鍵字

TTNT ； Aerial mobile ad hoc network ； TxRxN ； OMNeT++

參考文獻

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