Pricing and power allocation in sensing-based cognitive femtocell networks

In this paper, we investigate the pricing and resource allocation strategies in the two-tier sensing-based cognitive fem-tocell networks, where the macrocell and femtocells are operating over the same frequency band. The macrocell base station protects itself by setting the maximum aggregate interference constraint and makes profit by pricing the interference from femtocell users. Different from the conventional underlay-based networks where there is one price only, in the proposed sensing-based networks two prices are adopted corresponding to the idle and busy states of the macrocell. We consider both cases of perfect and imperfect sensing at the femtocells and solve the pricing and power allocation for both macrocell and femtocells using the energy efficiency as the utility function. Simulation results show that the proposed scheme can improve the energy efficiency significantly in spectrum sharing femtocell networks.

[1]  F. Richard Yu,et al.  Energy-Efficient Resource Allocation for Heterogeneous Cognitive Radio Networks with Femtocells , 2012, IEEE Transactions on Wireless Communications.

[2]  F. Richard Yu,et al.  Spectrum sharing and resource allocation for energy-efficient heterogeneous cognitive radio networks with femtocells , 2012, 2012 IEEE International Conference on Communications (ICC).

[3]  Yonghong Zeng,et al.  Sensing-Throughput Tradeoff for Cognitive Radio Networks , 2008, IEEE Trans. Wirel. Commun..

[4]  Kwang-Cheng Chen,et al.  Cognitive and Game-Theoretical Radio Resource Management for Autonomous Femtocells with QoS Guarantees , 2011, IEEE Transactions on Wireless Communications.

[5]  Zhi-Quan Luo,et al.  A Stackelberg game approach to distributed spectrum management , 2010, 2010 IEEE International Conference on Acoustics, Speech and Signal Processing.

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

[7]  Ying-Chang Liang,et al.  Sensing-Based Spectrum Sharing in Cognitive Radio Networks , 2009, IEEE Trans. Veh. Technol..

[8]  Paul Tseng,et al.  A stackelberg game approach to distributed spectrum management , 2011, Math. Program..

[9]  Mehul Motani,et al.  Price-Based Resource Allocation for Spectrum-Sharing Femtocell Networks: A Stackelberg Game Approach , 2012, 2011 IEEE Global Telecommunications Conference - GLOBECOM 2011.

[10]  Jeffrey G. Andrews,et al.  Uplink capacity and interference avoidance for two-tier femtocell networks , 2007, IEEE Transactions on Wireless Communications.

[11]  Tung-Sang Ng,et al.  MIMO-OFCDM systems with joint iterative detection and optimal power allocation , 2008, IEEE Transactions on Wireless Communications.

[12]  Zhong Chen,et al.  Continuous Power Allocation Strategies for Sensing-Based Multiband Spectrum Sharing , 2013, IEEE Journal on Selected Areas in Communications.