认知无线电切换算法，基于排队论，考虑主用户是否随机接入两种情况。-Cognitive radio handover algorithm based on queuing theory, to consider whether the user random access to two main situations.

认知无线电中动态信道分配算法评估，对接入时延、切换频率、切换时延、吞吐量、用户公平性、中断概率指标的评估-Assessment of cognitive radio, dynamic channel allocation algorithm assessment, the access delay, switching frequency, switching delay, throughput, user fairness, outage probability indicators

认知无线电中平均初始接入时延和平均切换时延的计算方法-Calculated the average switching delay and delay cognitive radio average initial access

认知无线电中基于即时感知和后备信道的频谱切换方案评估-Switching cognitive radio spectrum switching program evaluation