An Adaptive Path Selection Technique Considering Time Difference of Arrival in Multi-hop Relay Systems 


Vol. 34,  No. 4, pp. 291-301, Apr.  2009


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  Abstract

In this paper, the effect of ISI(Inter-Symbol Interference) and ICI(Inter-Carrier Interference) due to time difference of arrival on OFDMA-based mobile multi-hop relay (MMR) systems is analyzed. Analyses are performed for the ISI caused by the previous OFDMA symbol transmitted from neighboring macro or relay cell as well as the ISI caused by the next OFDMA symbol transmitted from neighboring macro or relay cell. Then, an effective SINR(Signal to Interference plus Noise Ratio) estimation method and a path selection method considering time difference of arrival are proposed to minimize the effect of ISI and ICI. It is shown by simulation that the performance degradation caused by time difference of arrival can be significantly mitigated when the proposed path selection method is applied to the uplink of OFDMA-based MMR systems.

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  Cite this article

[IEEE Style]

K. S. Woo, C. H. Park, H. I. Yoo, J. Kim, S. H. Han, Y. S. Cho, "An Adaptive Path Selection Technique Considering Time Difference of Arrival in Multi-hop Relay Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 4, pp. 291-301, 2009. DOI: .

[ACM Style]

Kyung Soo Woo, Chang Hwan Park, Hyun Il Yoo, Jae-kwon Kim, Seung Hee Han, and Yong Soo Cho. 2009. An Adaptive Path Selection Technique Considering Time Difference of Arrival in Multi-hop Relay Systems. The Journal of Korean Institute of Communications and Information Sciences, 34, 4, (2009), 291-301. DOI: .

[KICS Style]

Kyung Soo Woo, Chang Hwan Park, Hyun Il Yoo, Jae-kwon Kim, Seung Hee Han, Yong Soo Cho, "An Adaptive Path Selection Technique Considering Time Difference of Arrival in Multi-hop Relay Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 4, pp. 291-301, 4. 2009.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880