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An AHP-based resource management scheme for CRRM in heterogeneous wireless networks

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Abstract

In a heterogeneous wireless environment, a variety of Radio Access Technologies (RATs) coexist. Since the number of RATs is anticipated to increase in the near future, it is desirable to have radio and network resources managed in a cooperative manner using the Common Radio Resource Management (CRRM) strategy. In order to make RAT-specific radio resources manageable in CRRM, this paper proposes the Analytical Hierarchy Process (AHP) based resource management scheme that efficiently allocates resources among heterogeneous wireless networks. The proposed AHP-based method is simple and flexible enough to be used in any network environment and can consider a multitude of decision factors. In addition, the proposed scheme uses a radio bandwidth model, which properly reflects transmission rates under given channel conditions, as the actual radio resources to be allocated. The model considers the AMC (Adaptive Modulation and Coding) scheme that is widely used in current broadband wireless access technologies, and thus, packet service characteristics, such as response time, can be analyzed. This is in contrast to existing work that focuses only on circuit service characteristics (e.g., blocking probability). The effectiveness and flexibility of the proposed method are demonstrated by implementing a number of existing methods and performing extensive simulation study on several different scenarios.

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Notes

  1. RI is the average CI of 500 randomly filled matrices and is compared with CI of A obtained in Eq. 1 for consistency check.

  2. In 3GPP HSDPA, the actual transmission bandwidth is 1.8, 3.6, 7.2, or 14.4 Mbps, which perfectly match our assumption.

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Acknowledgements

This research was supported by the MKE(The Ministry of Knowledge Economy), Korea, under the ITRC(Information Technology Research Center) support program supervised by the NIPA(National IT Industry Promotion Agency) (NIPA-2012-(C1090-1121-0003))

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Authors and Affiliations

  1. Kyung Hee University, Yongin-si, 446-701, Korea

    Choongyong Shin, Jinsung Cho & Jeong Geun Kim

  2. Oregon State University, Corvallis, 97331, OR, USA

    Ben Lee

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  1. Choongyong Shin
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  2. Jinsung Cho
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Correspondence to Jinsung Cho.

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Shin, C., Cho, J., Kim, J.G. et al. An AHP-based resource management scheme for CRRM in heterogeneous wireless networks. Ann. Telecommun. 67, 511–522 (2012). https://doi.org/10.1007/s12243-012-0288-9

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