A highly available spectrum allocation service model in dynamic spectrum market

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• 作者：Yingwei Jin^a  ; [Author Vitae] ; Lulu Sun^b  ; [Author Vitae] ; Yanming Shen^b  ; [Author Vitae] ; Keqiu Li^b ; ^{keqiu@dlut.edu.cn}  ; [Author Vitae] ; Geyong Min^c  ; [Author Vitae]
• 关键词：Dynamic spectrum allocation
• 刊名：Future Generation Computer Systems
• 出版年：2012
• 期刊代码：54_0167739x
• 类别：cp
• 出版时间：June, 2012
• 卷：28
• 期：6
• 页码：940-946
• 文件大小：676 K

摘要

Dynamic spectrum access and adaptive spectrum allocation can significantly improve the resource utilization in dynamic spectrum market. To achieve this, it is important to stimulate the primary license holders to open up their under-utilized spectrum for sharing and adaptive allocation so as to maximize the secondary user鈥檚 transmission reliability with the minimum cost. In this paper, we propose a highly available spectrum allocation service model that adopts a parallel mechanism to improve the transmission reliability. A greedy algorithm is presented for minimizing the secondary user鈥檚 cost with satisfied reliability requirement. Furthermore, a dynamic programming algorithm is developed for maximizing the secondary user鈥檚 reliability with satisfied cost requirement. Simulation results show that, by using the proposed service model, spectrum utilization can be improved significantly and purchase price from secondary users is relatively stable.