基于信道质量信息的机会频谱接入策略
发布时间：2019-06-13 20:50
【摘要】：机会频谱接入被认为是一种实现异构无线网络间频谱资源共享的有效途径之一。之前的相关研究很少考虑信道质量信息对于机会频谱接入性能的影响。针对这一问题,该文综合考虑主用户信道占用信息和次用户的信道质量信息来设计机会频谱接入策略,并通过求解凸优化问题获得了一种基于信道质量门限的策略。该策略能够最大化次用户获得的有效吞吐率,同时满足主用户对传输质量的要求,且在单信道场景下具有最优性。仿真结果表明:该策略能够显著提高次用户的有效吞吐率。
[Abstract]:Opportunistic spectrum access is considered to be an effective way to realize the sharing of spectrum resources among heterogeneous wireless networks. The previous correlation studies rarely take into account the effect of channel quality information on the opportunity spectrum access performance. In order to solve this problem, this paper designs the opportunity frequency spectrum access strategy based on the primary user channel occupation information and the channel quality information of the secondary user, and obtains a strategy based on the channel quality threshold by solving the convex optimization problem. The strategy can maximize the effective throughput rate obtained by the sub-users while meeting the requirements of the main users for the transmission quality, and has the optimality under the single-channel scene. The simulation results show that the strategy can significantly improve the effective throughput of the secondary users.
【作者单位】： 清华大学电子工程系 微波与数字通信技术国家重点实验室 清华信息科学与技术国家实验室;
【基金】：国家科技重大专项(2013ZX03001024-004) 国家“九七三”重点基础研究项目(2013CB329002) 国家自然科学青年基金项目(61201192) 国家“八六三”高技术项目(2012AA011402) 清华自主科研项目(2011THZ02-2) 国家国际科技合作项目(2012DFG12010) 爱立信合作项目(20123000059)
【分类号】：TN92
[Abstract]:Opportunistic spectrum access is considered to be an effective way to realize the sharing of spectrum resources among heterogeneous wireless networks. The previous correlation studies rarely take into account the effect of channel quality information on the opportunity spectrum access performance. In order to solve this problem, this paper designs the opportunity frequency spectrum access strategy based on the primary user channel occupation information and the channel quality information of the secondary user, and obtains a strategy based on the channel quality threshold by solving the convex optimization problem. The strategy can maximize the effective throughput rate obtained by the sub-users while meeting the requirements of the main users for the transmission quality, and has the optimality under the single-channel scene. The simulation results show that the strategy can significantly improve the effective throughput of the secondary users.
【作者单位】： 清华大学电子工程系 微波与数字通信技术国家重点实验室 清华信息科学与技术国家实验室;
【基金】：国家科技重大专项(2013ZX03001024-004) 国家“九七三”重点基础研究项目(2013CB329002) 国家自然科学青年基金项目(61201192) 国家“八六三”高技术项目(2012AA011402) 清华自主科研项目(2011THZ02-2) 国家国际科技合作项目(2012DFG12010) 爱立信合作项目(20123000059)
【分类号】：TN92
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