Cognitive radio CSMA/CA protocol for femto-WLANs

To expand private femto-WLANs into public femto-WLANs, we present an integrated system of cognitive radio and femto-WLANs, cognitive femto-WLANs, which aims at meeting the requirements from the secondary users upon guaranteeing the requirements from the primary users. To reach this goal, we provide a cognitive radio CSMA/CA protocol, CR-CSMA/CA. Based on user differentiation, CR-CSMA/CA can provide a high priority for primary users, and a low priority for secondary users. Moreover, an analytical model is proposed to analyze the performance of CR-CSMA/CA under saturation cases. Extensive simulations are also carried out to evaluate the performance of CR-CSMA/CA.

[1]  Jie Zhang,et al.  Access methods to WiMAX femtocells: A downlink system-level case study , 2008, 2008 11th IEEE Singapore International Conference on Communication Systems.

[2]  Yang Xiao,et al.  Performance analysis of priority schemes for IEEE 802.11 and IEEE 802.11e wireless LANs , 2005, IEEE Transactions on Wireless Communications.

[3]  Holger Claussen,et al.  Performance of Macro- and Co-Channel Femtocells in a Hierarchical Cell Structure , 2007, 2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications.

[4]  A. Girotra,et al.  Performance Analysis of the IEEE 802 . 11 Distributed Coordination Function , 2005 .

[5]  Kevin Curran,et al.  Cognitive Radio , 2008, Comput. Inf. Sci..

[6]  Michael Devetsikiotis,et al.  A unified model for the performance analysis of IEEE 802.11e EDCA , 2005, IEEE Transactions on Communications.

[7]  W. Marsden.  I and J , 2012 .

[8]  Sujit Dey,et al.  Quality of service provisioning in 802.11e networks: challenges, approaches, and future directions , 2005, IEEE Network.

[9]  Shivendra S. Panwar,et al.  Throughput and delay analysis for the IEEE 802.11e enhanced distributed channel access , 2006, IEEE Transactions on Communications.

[10]  Jie Zhang,et al.  Femtocells: Technologies and Deployment , 2010 .

[11]  Jeffrey G. Andrews,et al.  Femtocell networks: a survey , 2008, IEEE Communications Magazine.

[12]  Wei Ding,et al.  Incomplete cooperation-based service differentiation in WLANs , 2012, Wirel. Commun. Mob. Comput..