A Novel System Model based on Cost-prediction for Spectrum Leasing in Cognitive Radio

作者：Wang Weidong^*; Wang Ben; Zhang Yinghai; Zhao Xinlei; Wang Shoufeng

来源：China Communications, 2010, 7(2): 32-41.

• cognitive radio
• spectrum leasing
• cost prediction
• dynamic spectrum sharing
• CPSL

In current researches on spectrum leasing, Common model and Property-right model are two main approaches to dynamic spectrum sharing. However, Common model does not consider the obligation of Primary System (PS) and is unfair to Secondary System (SS), while the cooperation based on Property-rights model has problems on its feasibility. This paper proposes a novel system model, in which a Cost-Prediction scheme for Spectrum Leasing (CPSL scheme) is designed to forecast the cost that PS would pay for leasing spectrum Cost Function is introduced as a criterion to evaluate the potential cost of spectrum leasing for PS. The simulation results show that compared with Common model based scheme, CPSL scheme substantially improves the QoS of the delay-sensitive traffic in SS at the cost of a small degradation of PS performance.

• 出版日期2010-4
• 单位北京邮电大学