Spectrum allocation, management and

Spectrum allocation, management and handoff
After the initial process of spectrum sensing and analysis, spectrum allocation, management and handoff enable the secondary users to have the best frequency band to transmit and hop around multiple spectrum bands according to the time‐varying characteristics of channels while meeting the QoS requirement [5]. The nature of spectrum mobility in CRNs can be divided into the following categories: Spectrum mobility in time domain, where a CR adapts its operating frequency bands to newly available unoccupied spectrum bands over various time slots. Spectrum mobility in space domain, where a CR changes its operating frequency based on the operating geographical region, meaning that when it moves from one place to another, it’s operating frequency changes accordingly.

結果 (中文) 1:

频谱分配、 管理和切换后的频谱感知和分析初始过程中，频谱分配、 管理和切换启用辅助用户有最好的频带内，传输和蛇麻草多个频段电视频道 time‐varying 特点同时满足 QoS 要求 [5]。光谱流动性在交叉点的性质可以分为以下几类 ︰ 谱流动性在时间域，CR 以其经营的频率波段到新的可用空闲的频段适应在不同的时段。在空间域，CR 在哪里更改基于经营的地理区域，意思，当它从一个地方移到另一种，它经营的频率的变化相应地其工作频率的谱移动性。

結果 (中文) 3:

频谱分配，管理和切换检测和分析，初步处理后的频谱的频谱分配、管理和切换使次用户有最好的频带传输和跳周围多个频段根据时间变化的特点‐渠道同时满足QoS要求的[ 5 ]。在CRNs频谱移动性的性质可分为以下几类：时域频谱移动性，其中Cr适应其工作频带为新的可用空闲频段在不同的时隙。在空间域中的频谱流动性，其中一个铬改变其工作频率的基础上的经营地域，这意味着，当它从一个地方移动到另一个，它的工作频率变化相应。