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Navigation-based self-optimization handover mechanism for mobile relay stations in WiMAX networks

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Abstract

Organic Computing has similar characteristics of organism which can be self-adjustment for a variety of conditions. Moreover, during the wireless communication technological evolution progress, WiMAX (Worldwide Interoperability for Microwave Access) offers ability of high capacity and far distance transmission. WiMAX provides high-speed access and a coverage range across several kilometers, but the actual coverage range was merely a few kilometers due to the shelter of buildings or terrain. IEEE 802.16 working group designed 802.16j-based RS (Relay Station) to overcome above problem. In this paper, we present a mechanism called Self-Optimization Handover Mechanism. This mechanism is using GPS (Global Positioning System) navigation system to gather the related information for the position and combine the mobility characteristics of Mobile Relay Station. Especially, the concept of Self-Optimization of Organic Computing has been integrated into this mechanism. There are some advantages for this new mechanism, including: (1) The base station can provide advance plan and select the path. (2) The mechanism can reduce the number of possible handover and hop. (3) The mechanism can reduce the time of channel scan.

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Acknowledgements

The authors would like to thank the editor and the anonymous referees. This work was supported in part by the Nation Science Council of Taiwan, R.O.C., under contract NSC98-2221-E-197-009-MY3

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Correspondence to Han-Chieh Chao.

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Chang, J., Hsiao, W., Chen, J. et al. Navigation-based self-optimization handover mechanism for mobile relay stations in WiMAX networks. Telecommun Syst 55, 17–24 (2014). https://doi.org/10.1007/s11235-013-9747-5

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Keywords

  • 802.16j
  • Handover
  • Mobile relay station
  • GPS navigation
  • Organic computing