HMIPv6移動特性之負載平衡機制

Load Balancing Mechanism Based on Mobility of HMIPv6

施哲志(Che-Chih Shih)

指導教授 ： 涂世雄

中原大學/工學院/電機工程研究所/碩士(2007年)

https://doi.org/10.6840/cycu200700261

摘要

在本論文中，我們考慮在階層式移動網際網路第六版（HMIPv6）架構下提供移動節點（MN）漫遊服務的問題並且提出一個用來降低換手頻率且達到負載平衡的方法。我們利用移動節點（MN）的移動歷史紀錄應用在選擇移動錨點（MAP）的機制中，有效地反應MN的移動特性，並達到負載平衡。
首先我們想在接近真實網路拓樸的環境下將MN的移動歷史紀錄作為選擇MAP的判斷準則。另外，我們利用同一層相鄰的邊緣MAP組織成一個虛擬區域，藉著同一虛擬區域內的MAP在MN發生跨越domain時提前選擇適當的MAP，以此方法得到無縫隙的漫遊服務及克服MN的負載平衡問題。
我們的研究主要貢獻有下列幾點：
1.利用移動歷史紀錄作為MAP選擇判斷準則可以有效地達到無縫隙的換手。
2.藉著利用虛擬區域，可以獲得負載平衡的效果。
相信HMIPv6將會被廣泛的應用在網際網路架構中，我們的研究結果將會給予未來有關於HMIPv6架構下換手頻率及負載平衡方面相關的研究很大的幫助。

關鍵字

階層式移動IPv6

並列摘要

In this thesis, we propose a load balancing mechanism to reduce the handoff frequency based on mobility of hierarchical mobile Internet version 6 (HMIPv6). We apply history-based mobility strategy to allow a mobile node (MN) to select the suitable mobility anchor point (MAP) in HMIPv6. The proposal also can decentralize the traffic concentration within the same layer MAP domain.
In the first instance, we would like to apply the MN’s mobile history for the criterion of selecting proper MAP in the densely meshed tree topology. Furthermore, we organize border adjacent MAPs which in the same layer into the virtual domain. By informing the border adjacent MAPs about the virtual domain, the load sharing is acceptable. Therefore, we can focus handoff on MN’s mobile history and reach to load balancing management.
The contributions in this thesis are as follows:
(1)MN can move seamless by estimative handoff frequency and applying mobile history.
(2)By employing the virtual domain, load sharing can be implemented in the same layer of hierarchy to achieve load balancing.
As expected, HMIPv6 will be employed in the future. We trust that
The result of our research in this thesis will be much helpful to improve the load balancing and handoff frequency in the HMIPv6.

並列關鍵字

MAP ； HMIPv6

參考文獻

References

[1] R. Ramjee, TF. La Porta, L. Salgarelli, S. Thuel, K.Varadhan, and L. Li “IP-based Access Network Infrastructure for Next-Generation Wireless Data Networks,” IEEE Personal Commun., vol. 7 no. 4, pp. 34-41, Aug. 2000.

[2] I. F. Akyildiz et al., “Mobility Management in Next-Generation Wireless Systems,” Proc. IEEE, vol. 87, no. 8, pp. 1347-84, Aug. 1999.

[3] I. F. Akyildiz, J. Xie, and S. Mohanty, “A Survey of Mobility Management in Next-Generation All-IP-Based Wireless Systems,” IEEE Wireless Commun., vol. 11, no. 4, pp. 16–28, Aug. 2004.

[4] C. E. Perkins, “Mobile Networking Through Mobile IP,” IEEE Internet Comp., vol. 2, no. 1, pp. 58–69, Jan.–Feb. 1998.