A Hierarchical Preamble Design Technique for Efficient Handover in OFDM-based Multi-hop Relay Systems 


Vol. 33,  No. 4, pp. 342-351, Apr.  2008


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  Abstract

In this paper, a new handover procedure for OFDM-based multi-hop relay systems is proposed to reduce the handover overhead by distinguishing inter-cell handover event from intra-cell handover event at the level of physical layer using a hierarchical design concept of preamble. A Subcell ID concept for identifying RS in a cell is proposed in the design of hierarchical manner, in addition to the existing Cell ID for identifying BS. The decision on either inter-cell handover or intra-cell handover is made by the signal quality measure of CBINR(Carrier of BS to Interference and Noise Ratio) and CRINR(Carrier of RS to Interference and Noise Ratio), provided by the hierarchical preamble. The proposed handover procedure can simplify scanning procedure and skip/simplify network re-entry procedure (capability negotiation, authorization, registration), resulting in a significant reduction of handover overhead.

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  Cite this article

[IEEE Style]

H. I. Yoo, Y. J. Kim, K. S. Woo, J. Kim, S. B. Yun, Y. S. Cho, "A Hierarchical Preamble Design Technique for Efficient Handover in OFDM-based Multi-hop Relay Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 4, pp. 342-351, 2008. DOI: .

[ACM Style]

Hyun Il Yoo, Yeong Jun Kim, Kyung Soo Woo, Jaekwon Kim, Sang Boh Yun, and Yong Soo Cho. 2008. A Hierarchical Preamble Design Technique for Efficient Handover in OFDM-based Multi-hop Relay Systems. The Journal of Korean Institute of Communications and Information Sciences, 33, 4, (2008), 342-351. DOI: .

[KICS Style]

Hyun Il Yoo, Yeong Jun Kim, Kyung Soo Woo, Jaekwon Kim, Sang Boh Yun, Yong Soo Cho, "A Hierarchical Preamble Design Technique for Efficient Handover in OFDM-based Multi-hop Relay Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 4, pp. 342-351, 4. 2008.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880