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Transport Control Based on Spectrum Switching Detection in Cognitive Radio Ad Hoc Networks

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Quality, Reliability, Security and Robustness in Heterogeneous Networks (QShine 2010)


Cognitive Radio is an intelligent wireless communication technology which can improve the radio spectrum utilization through opportunistically accessing the vacant portions of the spectrum. Due to the time-varying spectrum availability, a cognitive node has to perform spectrum switching frequently, which causes severe delay and high packet loss. Therefore, network protocol design for cognitive radio ad hoc networks (CRAHNs) should address this issue to ensure reliable end-to-end packet delivery. In this paper, we first propose a novel spectrum switching detection scheme for CRAHNs in which intermediate nodes monitor the variation of the Round-Trip Time (RTT) and the arrival interval time of packets to detect the spectrum switching over succeeding links. Based on the scheme, a new transport control mechanism is then designed to deal with spectrum switching in CRAHNs. We implement the proposed mechanisms on a USRP2-based testbed. The experiment results demonstrate that the mechanisms can detect the spectrum switching and improve end-to-end throughput by up to 45%.

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  1. Akyildiz, I.F., Lee, W.F., Vuran, M.C., Mohanty, S.: NeXt Generation/Dynamic Spectrum Access/Cognitive Radio Wireless Networks: A Survey. Computer Networks 50, 2127–2159 (2006)

    Article  MATH  Google Scholar 

  2. Chowdhury, K.R., Felice, M.D., Akyildiz, I.F.: TP-CRAHN: A Transport Protocol for Cognitive Radio Ad-Hoc Networks. In: 28th Conference on Computer Communications, Rio de Janeiro, Brazil, pp. 2482–2490 (2009)

    Google Scholar 

  3. Akyildiz, I.F., Lee, W.Y., Chowdhury, K.R.: CRAHNs: Cognitive Radio Ad-hoc Networks. Computer Networks 7, 810–836 (2009)

    Google Scholar 

  4. Ramani, R., Karandikar, A.: Explicit Congestion Notification (ECN) in TCP over Wireless Network. In: 2000 IEEE International Conference on Personal Wireless Communications, Hyderabad, India, pp. 495–499 (2000)

    Google Scholar 

  5. Casetti, C., Gerla, M., Mascolo, S., Sanadidi, M.Y., Wang, R.: TCP Westwood: Bandwidth Estimation for Enhanced Transport over Wireless Links. In: 7th Annual International Conference on Mobile Computing and Networking, Rome, Italy, pp. 287–297 (2001)

    Google Scholar 

  6. Brakmo, L.S., O’Malley, S.W., Peterson, L.L.: TCP Vegas: New Techniques for Congestion Detection and Voidance. In: ACM SIGCOMM Computer Communication Review, London, U.K, pp. 24–35 (1994)

    Google Scholar 

  7. Barman, D., Matta, I.: Effectiveness of Loss Labeling in Improving TCP Performance in Wire/Wireless Networks. In: 10th IEEE International Conference on Network Protocols, pp. 24–35. IEEE Computer Society, Washington (1994)

    Google Scholar 

  8. Biaz, S., Vaidya, N.H.: Discriminating Congestion Losses from Wireless Losses Using Inter-Arrival Times at the Receiver. In: Proceedings of the 1999 IEEE Symposium on Application - Specific Systems and Software Engineering and Technology, pp. 10–17. IEEE Computer Society, Washington (2002)

    Google Scholar 

  9. Tobe, Y., Tamura, Y., Molano, A., Ghosh, S., Tokuda, H.: Achieving Moderate Fairness for UDP Flows by Path-Status classification. In: 25th Annual IEEE Conference on Local Computer Networks, pp. 252–261. IEEE Computer Society, Washington (2000)

    Google Scholar 

  10. Cen, S., Cosman, P.C., Voelker, G.M.: End-to-End Differentiation of Congestion and Wireless Losses. IEEE/ACM Transaction on Networking 11, 703–717 (2003)

    Article  Google Scholar 

  11. Felice, D., Chowdhury, K.R., Bononi, L.: Modeling and Performance Evaluation of Transmission Control Protocol over Cognitive Radio Ad Hoc Networks. In: 12th ACM International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems, Tenerife, Canary Islands, Spain, pp. 4–12 (2009)

    Google Scholar 

  12. Sarkar, D., Narayan, H.: Transport Layer Protocols for Cognitive Networks. In: IEEE Conference on Computer Communications Workshops, pp. 1–6 (2010)

    Google Scholar 

  13. Cormio, C., Chowdhury, K.R.: A Survey on MAC Protocols for Cognitive Radio Networks. Ad Hoc Networks 7, 1315–1329 (2009)

    Article  Google Scholar 

  14. Chen, K., Xue, Shah, S.H.: Understanding Bandwidth-Delay Product in Mobile Ad Hoc Networks. Computer Communications 27, 923–934 (2004)

    Article  Google Scholar 

  15. Verduin, A.: Gnu Radio Wireless Protocol Analysis Approach. Master Program System and Network Engineering, Universiteit Van Amsterdam (2008)

    Google Scholar 

  16. Welcome to GNU Radio,

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© 2012 ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering

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Han, R., Huang, X., Li, P. (2012). Transport Control Based on Spectrum Switching Detection in Cognitive Radio Ad Hoc Networks. In: Zhang, X., Qiao, D. (eds) Quality, Reliability, Security and Robustness in Heterogeneous Networks. QShine 2010. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 74. Springer, Berlin, Heidelberg.

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-29221-7

  • Online ISBN: 978-3-642-29222-4

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