Browse > Article

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

Woo, Kyung-Soo (중앙대학교 디지털통신 연구실)
Park, Chang-Hwan (중앙대학교 디지털통신 연구실)
Yoo, Hyun-Il (중앙대학교 디지털통신 연구실)
Kim, Jae-Kwon (연세대학교 컴퓨터정보통신공학부)
Han, Seung-Hee (삼성전자 통신연구소)
Cho, Yong-Soo (중앙대학교 디지털통신 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.4A, 2009 , pp. 291-301 More about this Journal
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.
Keywords
MMR; Path Selection; OFDMA; ISI; ICI;
Citations & Related Records
연도 인용수 순위
  • Reference
1 IEEE Std 802.16e, IEEE standard for local andmetropolitan area networks part 16, Feb. 2006
2 IEEE 802.16m-08/003r6, IEEE 802.16m systemdescription document [Draft], Dec. 2008
3 J. Kim and E. J. Powers, 'Subsymbolequalizations for discrete multitone systems,'IEEE Trans. Commun., vol. 53, pp.1551-1560,Sept. 2005   DOI   ScienceOn
4 IEEE C802.16j-07/526r3, Direct Relay usingM&F, Sep. 2007
5 REV-080019, 'Consideration on technicalcandidates for IMT-advanced,' 3GPP RANIMT Advanced Workshop, Shenzhen, Apr.2008
6 M.O. Hasna, and M.S. Alouini, 'Optimal powerallocation for relayed transmissions overrayleigh-fading channels,' IEEE Trans. Wireless Commun., vol. 3, pp. 1999-2004. Nov.2004   DOI   ScienceOn
7 IEEE 802.16j-06/026r4, Baseline document fordraft standard for local and metropolitan areanetworks part 16, June 2007
8 E. Kwon, J. Lee, M. ?S. Do, and K. Jung,'Comparison of symmetric and asymmetricrouting for fixed two-hop cellular relaying network,' IEEE Commun. Letters, vol. 11, pp.378-380. May 2007   DOI   ScienceOn
9 S. Boumard, 'Novel noise variance and SNRestimation algorithm for wireless MIMOOFDM systems,' IEEE GLOBECOM 2003,vol. 3, pp. 1330 - 1334, Dec. 2003
10 S. Chen and C. Zhu, 'ICI and ISI Analysis and mitigation for OFDM systems with insufficient cyclic prefix in time-varying Channels,' IEEE Trans. Consumer Electronics, vol. 50, pp.78-83, Feb. 2004   DOI   ScienceOn
11 J. Cho and Z. J. Haas, 'On the throughputenhancement of the downstream channel incellular radio networks through multihop relaying,' IEEE J. Select. Areas Commun., vol.22, pp. 1206-1219, Sept. 2004   DOI   ScienceOn
12 R. Pabst, et. al, 'Relay-based deploymentconcepts for wireless and mobile broadbandradio,' IEEE Commun. Mag., vol. 42, pp. 80-89,Sept. 2004
13 3GPP TS 36.211, Evolved universal terrestrialradio access (E-UTRA); physical channels andmodulation, Sept. 2008