Wireless Personal Communications

, Volume 74, Issue 3, pp 1081–1097 | Cite as

Dynamic Spectrum Sharing for OFDMA-Based Multi-hop Cognitive Radio Networks with Priority

Article

Abstract

In this paper, we propose a resource assignment scheme of a secondary user (SU) for a multi-hop cognitive radio network. In multi-hop networks, since each link has different SNR because of their different distance between stations and multipath fading, the link of the smallest SNR is the bottleneck. For overcoming this problem, it is proposed to give a priority to each link based on the link SNR and to assign the resource blocks (RBs) in ordering of instantaneous SNR on the link. This link priority information is shared among nodes through a control channel. Then, we assign the selected SU RB to each SU node according to the SNR ordering with distributed manner. We confirm the effectiveness of the proposed SU RB assignment by using computer simulation.

Keywords

Cognitive radio Multi-hop network OFDMA Resource allocation 

References

  1. 1.
    Wadhwa, M., Xin, C., Song, M., & Park, E. K. (2010). Throughput analysis for a contention-based dynamic spectrum sharing model. IEEE Transaction on Wireless Communications, 26(4), 1426–1433.CrossRefGoogle Scholar
  2. 2.
    Hou, Y. T., Shi, Y., & Sherali, H. D. (2008). Spectrum sharing for multi-hop networking with cognitive radios. IEEE Journal on Selected Areas in Communications, 26(1), 146–155.CrossRefGoogle Scholar
  3. 3.
    Goldsmith, A. (2005). Wireless Communications. Cambridge: Cambridge University Press.Google Scholar
  4. 4.
    Thoppian, M., Venkatesan, S., Prakash, R., & Chandrasekaran, R. (2006). MAC-Layer misbehaviors in multi-hop cognitive radio networks. In Proceedings of the international symposium on a World of Wireless, mobile and multimedia networks (pp. 193–202).Google Scholar
  5. 5.
    Hung, W., Law, K., & Leon-Garcia, A. (April 2002). A dynamic multi-channel MAC for ad hoc LAN. In Proceedings of 21st Biennial symposium on communications, pp. 31–35.Google Scholar
  6. 6.
    So, J., & Vaidya, N. H. (2004). Multi-channel mac for ad hoc networks: handling multi-channel hidden terminals using a singletransceiver. In Proceedings of the 5th ACM international symposium on mobile ad hoc networking and, computing, pp. 222–223.Google Scholar
  7. 7.
    Jha, S. C., Phuyal, U., & Bhargava, V. K. (2011). Joint power and subcarrier allocation in multi-hop OFDMA network: a cross-Layer approach. In Proceedings of internet (AH-ICI), 2011 second Asian Himalayas international.Google Scholar
  8. 8.
    Cheng, P., Zhang, Z., Huang, H., & Qiu, P. (2008). A distributed algorithm for optimal resource allocation in cognitive OFDMA system. In Proceedings of ICC, pp. 4718–4723.Google Scholar
  9. 9.
    Jing, S., Zhao-yang, Z., Oei-liang, Q., & Guan-ding, Y. (2005). Subcarrier and power allocation for OFDMA-based regenerative multi-hop links. In Proceedings wireless communications, networking and mobile computing (pp. 207–210).Google Scholar
  10. 10.
    Kuhne, A., Klein, A., Loch, A., & Hollick, M. (2012). Opportunistic forwarding in multi-hop OFDMA networks with local CSI. In Proceedings of 17th International OFDM Workshop 2012 (InOWo’12).Google Scholar
  11. 11.
    Zhou, P., Miao, G., & Bing, B. (2009). Cross-layer congestion control and scheduling in multi-hop OFDMA wireless networks. In Proceedings of GLOBECOM.Google Scholar
  12. 12.
    Jing, S., Zhao-yang, Z., Pei-liang, Q., & Guan-ding, Y. (2005). Subcarrier and power allocation for OFDMA-based regerative multi-hop links. In Proceedings of Wireless Communications, Networking and Mobile Computing (pp. 207–210).Google Scholar
  13. 13.
    Siva Ram Murthy, C., & Manoj, B. S. (2004). Ad hoc wireless netrorks -architectures and protocols. Pearson Education, Inc.Google Scholar
  14. 14.
    Dohler, M., & Li, Y.: Cooperative communications, hardware, channel and Phy. Wiley 2010.Google Scholar

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Advanced Wireless Communication Research Center(AWCC)The University of Electro-CommunicationsTokyoJapan
  2. 2.Department of Electrical and Electronic EngineeringShinshu UniversityNaganoJapan

Personalised recommendations