基于认知的频谱切换技术

Cognitive-Based Spectrum Handover Technology

文章利用认知频谱检测、动态频谱分配、重配置等技术,考虑短时频谱特征与业务特征的匹配程度,在通信过程中网络侧选择待切换终端发起切换命令,解决由于容量受限而导致的系统过载、无法接纳新会话等问题,并在保证用户服务质量(QoS)的前提下提高切换成功率,有效消除过载现象,从而增大系统吞吐量,允许更多的会话接入,降低阻塞率,提升通信系统性能。

Based on spectrum sensing, dynamic spectrum allocation and reconfiguration technologies in Cognitive Radio （CR）, this paper fully considers the matching issues between short-term spectrum characteristic and service characteristic. In the communication process, the network-side chooses switch terminals to initiate handover command to solve problems due to limited capacity of the system, such as overload and new session decline, improving the success rate of switching on the premise of ensuring users Quality of Service （QoS）, reducing blocking probability with more session admission, eliminating overload, increasing system throughput, and improving the whole system performance.