Novel Spectrum Handoff in Cognitive Radio Networks Using Fuzzy Logic

Cognitive radio is a technology initiated by many research organizations and academic institutions to raise the spectrum utilization of underutilized channels in order to alleviate spectrum scarcity problem to a larger extent. Spectrum handoff is initiated due to appearance of primary user (PU) on the channels occupied by the secondary user (SU) at that time and location or interference to the PU exceeds the certain threshold. In this paper, we propose a novel spectrum handoff algorithm using fuzzy logic based approach that does two important functions: 1) adjusts transmission power of SU intelligently in order to avoid handoff by reducing harmful interference to PUs and 2) takes handoff decisions intelligently in the light of new parameter such as expected holding time (HT) of the channel as one of its antecedent. Simulated results show impact analysis of selection of the channel in the light of HT information and the comparison with random selection algorithm demonstrates that there is considerable reduction in handoff rate of SU.

[1]  A. Wolisz,et al.  Reliable link maintenance in cognitive radio systems , 2005, First IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, 2005. DySPAN 2005..

[2]  Arun Khosla,et al.  An efficient spectrum mobility management strategy in cognitive radio networks , 2009, 2009 First UK-India International Workshop on Cognitive Wireless Systems (UKIWCWS).

[3]  Simon Haykin,et al.  Cognitive radio: brain-empowered wireless communications , 2005, IEEE Journal on Selected Areas in Communications.

[4]  Fumiyuki Adachi,et al.  Modeling and Analysis for Reactive-Decision Spectrum Handoff in Cognitive Radio Networks , 2010, 2010 IEEE Global Telecommunications Conference GLOBECOM 2010.

[5]  Guangguo Bi,et al.  A New Link Maintenance and Compensation Model for Cognitive UWB Radio Systems , 2006, 2006 6th International Conference on ITS Telecommunications.

[6]  Yi Song,et al.  Proactive Spectrum Handoff in Cognitive Radio Ad Hoc Networks Based on Common Hopping Coordination , 2010, 2010 INFOCOM IEEE Conference on Computer Communications Workshops.

[7]  Qilian Liang,et al.  An Efficient Power Control Scheme for Cognitive Radios , 2007, 2007 IEEE Wireless Communications and Networking Conference.

[8]  Li-Chun Wang,et al.  Spectrum Handoff for Cognitive Radio Networks: Reactive-Sensing or Proactive-Sensins? , 2008, 2008 IEEE International Performance, Computing and Communications Conference.

[9]  Joseph Mitola,et al.  Cognitive radio: making software radios more personal , 1999, IEEE Wirel. Commun..

[10]  Ana I. Pérez-Neira,et al.  Fuzzy-based Spectrum Handoff in Cognitive Radio Networks , 2008, 2008 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom 2008).

[11]  Arun Khosla,et al.  Fuzzy based adaptive bandwidth allocation scheme in cognitive radio networks , 2010, 2010 Eighth International Conference on ICT and Knowledge Engineering.

[12]  Jiang Xie,et al.  ProSpect: A Proactive Spectrum Handoff Framework for Cognitive Radio Ad Hoc Networks without Common Control Channel , 2012, IEEE Transactions on Mobile Computing.

[13]  H.-S.T. Le,et al.  Opportunistic spectrum access using Fuzzy Logic for cognitive radio networks , 2008, ICC 2008.

[14]  Sami Tabbane,et al.  Radio Resources Management on the basis of temporal characterization of spectrum holes in cognitive radio networks , 2011, 2011 The 14th International Symposium on Wireless Personal Multimedia Communications (WPMC).

[15]  Min Yi,et al.  Study on the performance of spectrum mobility in cognitive wireless network , 2008, 2008 11th IEEE Singapore International Conference on Communication Systems.

[16]  Michele Zorzi,et al.  Fuzzy Logic for Cross-layer Optimization in Cognitive Radio Networks , 2008, 2007 4th IEEE Consumer Communications and Networking Conference.

[17]  Joseph Mitola,et al.  Cognitive Radio An Integrated Agent Architecture for Software Defined Radio , 2000 .

[18]  Ian F. Akyildiz,et al.  NeXt generation/dynamic spectrum access/cognitive radio wireless networks: A survey , 2006, Comput. Networks.

[19]  Shilian Zheng,et al.  Target Channel Sequence Selection Scheme for Proactive-Decision Spectrum Handoff , 2011, IEEE Communications Letters.

[20]  Chung-Wang Wang,et al.  Modeling and Analysis for Proactive-Decision Spectrum Handoff in Cognitive Radio Networks , 2009, 2009 IEEE International Conference on Communications.