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Novel pricing model for spectrum leasing in secondary spectrum market

The Journal of China Universities of Posts and Telecommunications 2010年第5期17卷 12-19页

作者： WANG Lei XU Xing-kun XU Wen-jun HE Zhi-qiang LIN Jia-ru Key Laboratory of Universal Wireless Communications Ministry of Education Beijing University of Posts and Telecommunications Beijing 100876 China

According to the property rights model of cognitive radio,primary users who own the spectral resource have the right to lease or trade part of it to secondary users in exchange for appropriate *** this paper,an implementation of this framework is investigated,where a primary link can lease the owned spectrum to secondary nodes in exchange for cooperation （relaying）.A novel pricing model is proposed that enables the trading between spectrum and *** on the demand of secondary nodes,the primary link attempts to maximize its quality of service （QoS） by setting the price of *** the price asked by primary link,the secondary nodes aim to obtain most profits by deciding the amount of spectrum to buy and then pay for it by cooperative *** investigated model is conveniently cast in the framework of seller/buyer （Stackelberg） *** and numerical results show that our pricing model is effective and practical for spectrum leasing based on trading spectral resource for cooperation.

关键词： cognitive radio property rights cooperative transmission spectrum leasing secondary spectrum market

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A Stackelberg Game for spectrum leasing in Cooperative Cognitive Radio Networks

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International Journal of Automation and computing 2013年第2期10卷 125-133页

作者： Xiao-Cheng Wang Xin-Ping Guan Qiao-Ni Han Zhi-Xin Liu Kai Ma Institute of Electrical Engineering Key Laboratory of Industrial Computer Control Engineering of Hebei Province Yanshan University School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University

According to the property-rights model of cognitive radio, primary users （PUs） who own the spectrum resource have the right to lease part of spectrum to secondary users （SUs） in exchange for appropriate profit. In this paper, we propose a pricing-based spectrum leasing framework between one PU and multiple SUs. In this scenario, the PU attempts to maximize its utility by setting the price of spectrum. Then, the selected SUs have the right to decide their power levels to help PU s transmission, aiming to obtain corresponding access time. The spectrum leasing problem can be cast into a stackelberg game, where the PU plays the seller-level game and the selected SUs play the buyer-level game. Through analysis based on the backward induction, we prove that there exists a unique equilibrium in the stackelberg game with certain constraints. Numerical results show that the proposed pricing-based spectrum leasing framework is effective, and the performance of both PU and SUs is improved, compared to the traditional mechanism without cooperation.

关键词： Cognitive radio spectrum leasing power control cooperative transmission pricing stackelberg game

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维普期刊数据库

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Relay Selection and Power Allocation for spectrum leasing in Cooperative Cognitive Radio Networks

Relay Selection and Power Allocation for Spectrum Leasing in...

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第36届中国控制会议

作者： Zhixin Liu Mingye Zhao Yuan’ai Xie Xinbin Li Kai Ma Institute of Electrical Engineering Yanshan University

ISBN: (纸本)9781538629185

Cognitive radio is a promising technology to relieve the pressure of spectrum crisis with the sharp increasement ot wireless *** this paper,the game model for spectrum leasing in cognitive radio network is considered,where the Primary Transrnitter（PT） will choose some Secondary Transmitter（ST） as relay to resist multi-path fading and enhance the transmission *** a reward,the PT leases the authorized spectrum bands to the ST,which will use the authorized spectrum bands to communicate with the Secondary Receiver（SR）.The PT attempts to get more help from STs,meanwhile,in order to enhance transmission capacity,each ST wants to get more access time for authorized spectrum ***,game theory is employed to balance the profit between PT and *** from previous works,we focus on the dynamic leasing time of the authorized spectrum,which is the key factor that affects the transmission efficiency both of PT and *** employing game theory,we derive the Nash bargaining solution:the optimal spectrum leasing time and allocated power of *** with traditional case that PT directly transmits data to Primary base（PB）,the transmission efficiency of the PT in proposed model is improved ***,the ST gets more transmission *** results show that the proposed scheme is feasible and efficient.

关键词： Cognitive radio Game Power allocation Relay selection spectrum leasing

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