WiMAX實驗網之不同網路負載下機器對機器通訊研究

THE STUDY OF MACHINE-TO-MACHINE COMMUNICATION BETWEEN DIFFERENT TRAFFIC LOADING IN WiMAX NETWORK

楊士傑(Shih-Chieh Yang)

指導教授 ： 許超雲

大同大學/電機資訊學院/通訊工程研究所/碩士(2012年)

摘要

隨著連接網路的設備越來越多，機器對機器通訊(Machine-to-Machine Communication)得到了IEEE與3GPP注意，IEEE 802.16p的制定在正在如火如荼的進行。然而對於M2M裝置大量存取管理(Massive Access Management)仍沒有一套明確的規範。再者，M2M通訊也還沒有一套完整的服務質量機制(Quality of Service Mechanism)，即使套用現存的QoS機制也無法滿足M2M通訊。面對智慧電網的普及與隨之而來更多不同需求的M2M裝置。如何有效地管理M2M通訊以及M2M通訊對現有網路環境所造成之影響，會是系統供應商不容忽視的問題。
在本篇論文中，我們將以大同大學與阿爾卡特-朗訊(Alcatel-lucent；ALU)合作建置的WiMAX校園實驗網路作為架構，研究M2M通訊的傳輸品質。由去年的研究可得知在沒有QoS機制時，進行大量M2M通訊，會產生極大的延遲與封包遺失率。如今我們將WiMAX的QoS機制同時使用在M2M通訊、FTP與VoIP上，驗證在滿載的網路環境下，該QoS不但能保證VoIP與M2M通訊的傳輸品質，同時也能維持FTP的下載流量。接著再針對大量M2M裝置同時連線，造成基地台(Base Station)頻寬過載，去營造一個接近斷線的網路環境，並觀察其對VoIP與FTP之影響。

關鍵字

M2M ； QoS ； IEEE 802.16p ； WiMAX ； MTC

並列摘要

As more and more devices are networked, machine-to-machine (M2M) communication have captured attention of IEEE 802.16 and 3GPP, legislate of IEEE 802.16p is proceeding like wildfire. However, there is no clearly standard of Massive Access Management. Furthermore, the existing QoS mechanisms can’t satisfy the requirements of M2M communication. To face the universal of smart meter and more M2M devices with different requirements, the efficiently management of M2M communication and the influence of network environment by massive access of M2M are the crucial issues to service providers.
This thesis studies the quality of M2M communication in WiMAX campus network built by Tatung University and Alcatel-lucent. Through previously research we knew that massive M2M communication without QoS mechanism lead to serious Latency and Packet Loss. In this experiment we will verify effectiveness of QoS mechanism for mixed-typed traffic flows and Then create an almost disconnected network environment according to amount of M2M devices connect network simultaneously to observe the effect of VoIP and FTP.

並列關鍵字

M2M ； QoS ； IEEE 802.16p ； WiMAX ； MTC

參考文獻

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