Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
권호 표지
DOI QR코드

DOI QR Code

Dynamic Frequency Allocation in OFDMA Cellular Networks

OFDMA 셀룰러 망에서 동적 주파수 할당 방법

  • Lee, Jong-Chan (Dept. of Computer Information Eng., Kunsan National University) ;
  • Lee, Gi-Sung (Div. of Computer and Game, Howon University)
  • 이종찬 (군산대학교 컴퓨터정보공학과) ;
  • 이기성 (호원대학교 컴퓨터.게임학부)
  • Received : 2013.04.25
  • Accepted : 2013.06.07
  • Published : 2013.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

The future mobile communication system can support not only voice but also multimedia applications such as data, image and video. It requires greater resources than the voice-oriented mobile system. We propose user and sub-channel priority based resource allocation for mobile multimedia services in the OFDMA systems. Our method is able to guarantee QoS continuity of realtime services and carry the maximum number of non-realtime subscriber. Simulation is focused on total throughput and blocking rate. The simulation results show that our proposed method provides a better performance than the conventional method.

차세대 이동통신 시스템은 음성 트래픽뿐만 아니라 데이터, 화상, 비디오와 같은 멀티미 디어 트래픽을 지원하여야 하므로 더 많은 무선 자원을 요구한다. 본 논문에서는 OFDMA 시스템에서 모바일 멀티미디어 서비스를 위한 사용자 및 부채널 우선순위 기반 자원할당 방안을 제안한다. 제시된 방안들을 통하여 실시간 클래스의 연속성을 보장하고 비실시간 가입자를 최대로 수용할 수 있다. 시뮬레이션은 총 데이터 처리량과 블럭킹률에 집중한다. 시뮬레이션 결과는 기존의 방법에 비하여 우수함을 보였다.

Keywords

References

  1. I-Kang Fu, Yih-Shen Chen, "Multicarrier Technology for 4G WiMAX System," WiMAX/LTE Update, IEEE Communications Magazine, August 2010. DOI: http://dx.doi.org/10.1109/MCOM.2010.5534587
  2. W. Dang, M. Tao, H. Mu, and J. Huang, "Subcarrier-pair-based resource allocation for cooperative multirelay OFDM systems," IEEE Trans. Wireless Commun., vol. 9, no. 5, pp. 1640-1649, May 2010. DOI: http://dx.doi.org/10.1109/TWC.2010.05.090102
  3. A. Kakhbod and D. Teneketzis, "Power allocation and spectrum sharing in multi-user, multi-channel systems with strategic users," IEEE Trans. Automatic Control, no. 99, 2012. DOI: http://dx.doi.org/10.1109/TAC.2012.2183192
  4. IEEE Std 802.16m-2011, "Part 16 : Air Interface for Broadband Wireless Access Systems," Amendment 3 : Advanced Air Interface, May, 2011. DOI: http://dx.doi.org/10.1109/IEEESTD.2011.5765736
  5. Z. Abichar, and J.M. Chang, "WiMAX vs. LTE: Who Will Lead the Broadband Mobile Internet," IEEE IT Professional, Vol. 12, No. 3, pp. 26-32, May 2010. DOI: http://dx.doi.org/10.1109/MITP.2010.47
  6. N. Ksairi, P. Bianchi, P. Ciblat, and W. Hachem, "Resource allocation for downlink cellular OFDMA systems-part I: optimal allocation," IEEE Trans. Signal Process., vol. 58, no. 2, pp. 720-734, Feb. 2010. DOI: http://dx.doi.org/10.1109/TSP.2009.2033301
  7. Yongho Kim, Inuk Jung, "Advanced Handover Schemes in IMT-Advanced Systems," WiMAX/LTE Update, IEEE Communications Magazine, August 2010. DOI: http://dx.doi.org/10.1109/MCOM.2010.5534590
  8. Shafi Bashar and Zhi Ding, "Admission Control and Resource Allocation in a Heterogeneous OFDMA Wireless Networks," IEEE Transactions on Wireless Communications, Vol. 8, No. 8, Aug. 2009. DOI: http://dx.doi.org/10.1109/TWC.2009.080844
  9. Jiancun Fan, Qinye Yin, Geoffrey Ye Li, "Adaptive Block-Level Resource Allocation in OFDMA Networks," IEEE Transaction on Wireless Communications, Vol. 10, No. 11, Nov. 2011. DOI: http://dx.doi.org/10.1109/TWC.2011.092011.110624
  10. Lee, E.S. and Li R.J, "Comparison of Fuzzy Members Based on the Probability Measure of Fuzzy Events," Computers and Mathematics with Application, Vol. 1, pp. 887-896, 1988.5
  11. S.Y. Jung and S.K. Cho, "Determination of Risk Level Using Fuzzy Multi - Criteria Decision Method," Journal of the Korean Institute of Industrial Engineers, Vol.24, No.4, pp. 627-638, Dec. 1998.
  12. S.-Y. Park, H.-Y. Kong, "Multihop Transmission in Cognitive Underlay Network Over Rayleigh Fading Channels", Journal of The Institute of Webcasting, Internet and Telecommunication, Vol 12, No 6, pp. 291-296, 2012. https://doi.org/10.7236/JIWIT.2012.12.6.291
  13. S. Jo, L.-T. Dung, B. An, "LED Communi cation-based Multi-hop Wireless Transmission Network System", Journal of The Institute of Webcasting, Internet and Telecommunication, Vol 12, No 4, pp. 37-42, 2012. https://doi.org/10.7236/JIWIT.2012.12.4.37
  14. I.-J. Park, K.-T. Lee, "A Study on Frequency Response in LED-LED Communication", Journal of The Institute of Webcasting, Internet and Telecommunication, Vol 12, No 1, pp. 115-122, 2012. https://doi.org/10.7236/JIWIT.2012.12.1.115
  15. J. Cho, O. Lee, "Analysis on Performance for Network Sharing in Adjacent Channels", Journal of The Institute of Webcasting, Internet and Telecommunication, Vol 11, No 5, pp. 179-184, 2011.
  16. J. Cho, S.-I. Cho, K.-M. Kang, H.-J. Hong, "Analysis on Characteristics for Sharing Co-channel between Communication Systems", Journal of The Institute of Webcasting, Internet and Telecommunication, Vol 11, No 4, pp. 251-256, 2011.