Heterogeneous Subchannel Sharing with Budget Constraint in Cognitive Radio Networks

• Main Authors: How-min Lin, 林浩民
• Other Authors: Chih-wei Huang
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/57386138269520353169

碩士 === 國立中央大學 === 通訊工程學系 === 101 === Cognitive radio network is a novel commutation paradigm in recent years which can significantly improve the spectrum utilization. In this paper, we consider a cognitive radio network model consisting of a primary owner (PO), multiple primary users (PU) and multiple secondary users (SU). We design an auction-based spectrum allocation mechanism where the SUs bid to purchase the spectrum bands from the PO who acts as the auctioneer. Existing auction-based spectrum allocation mechanisms mostly assume the spectrum bands are homogenous. However, we consider the heterogeneous spectrum bands. Moreover, we allow the SUs can announce their type and determine their different demands. We propose the Linear Programming Relaxation and All-Pay Mechanism to achieve the high efficiency of the spectrum allocation which involves the economic properties and budget constraints . Finally, the numerical results show performance improvements in terms of SUs' utilities, PO's revenue and social welfare.