Dynamic Spectrum Access and Power Allocation for Cooperative Cognitive Radio Networks

摘要: In the existing cooperative cognitive radio, primary users are generally assumed to be more than capable of supporting their target throughput, thereby rate enhancement or cooperation from secondary actually has less attraction users. Instead, they might interested in benefits other format. This paper presents a new radio framework, where willing cooperatively relay data for with under-utilized resource earn revenue. An auction model multiple auctioneers, bidders and hybrid divisible/indivisible commodities is proposed solve channel bands transmit power competitions among For maximizing utility, can select receiving user’s assistance (i.e., work transmission mode) purchase both spectrum user, direct mode just buy user. Then, convergence scheme Walrasian equilibrium mathematically proved. Finally, performance verified by simulation results.