西安电子科技大学学报（自然科学版）2016，Vol.43Issue(2)：6-12,7.DOI:10.3969/j.issn.1001-2400.2016.02.002
认知无线网络中视频传输的资源分配方案
Resource allocation scheme for video transmissions in cognitive radio networks
摘要
Abstract
Considering SUs with multiple radios, this paper discusses the cross-layer resource allocation problem for video transmissions in cognitive radio networks. Because of the coupling relationship between radio and channel, this paper proposes a new conflict graph based on the link-radio-channel, and models the resource allocation problem into an optimization problem. The constraints ensure the conflict-free and interference-free video transmissions, and provide flow routing and rate allocation for video services based on the feature of scalable video coding streams. The objective function achieves the network-level throughput maximization with fairness consideration. Simulation results show that the multi-radio transmission could gain a higher throughput. Also, the proposed scheme could provide fairness resource allocation, and use resource efficiently based on the feature of video services.关键词
认知无线网络/跨层资源分配/多网卡传输/视频传输Key words
cognitive radio network/cross-layer resource allocation/multi-radio transmission/video transmissions分类
信息技术与安全科学引用本文复制引用
龙彦,李红艳..认知无线网络中视频传输的资源分配方案[J].西安电子科技大学学报（自然科学版）,2016,43(2):6-12,7.基金项目
国家自然科学基金资助项目(91338115 ,61231008) （91338115 ,61231008）
国家科技重大专项资助项目 (2011ZX03005-004 , 2011ZX03004-003 , 2013ZX03004007-003) （2011ZX03005-004 , 2011ZX03004-003 , 2013ZX03004007-003）
陕西省"13115"科技创新工程资助项目(2010ZDKG-26) （2010ZDKG-26）
国家重点基础研究发展计划(973计划)资助项目(2009CB320404) （973计划）
长江学者和创新团队发展计划资助项目(IRT0852) （IRT0852）
