欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
为了实现可靠的宽带频谱检测,在感知能力受限的多用户认知无线电系统中使用合作频谱检测。首先对合作检测性能和系统平均传输吞吐量进行建模。在主用户网络可容忍的子频段传输冲突概率受限的前提下,研究多用户合作检测最优化问题,以最大化认知网络的平均传输吞吐量。使用穷举法获得系统的最优合作检测策略,并提出了一个启发式算法以简化计算复杂度。理论分析和数值仿真证明,提出的合作检测策略能有效提高认知无线电系统的频谱检测性能。
英文摘要：
To achieve wide-band spectrum sensing, cooperative spectrum sensing is performed in a multiuser cognitive system with limited sensing ability. First, the sensing performance and the average transmission throughput of the cognitive system were formulated. Cooperative spectrum sensing optimization problem was investigated to reach a goal to maximize the average throughput, given the primary network＇s tolerable collision probabilities in each spectrum sub-band. Exhaustive search was used to find the optimal cooperative spectrum sensing algorithm, and a heuristic algorithm proposed to simplify the computational complexity. The analysis and numerical simulation results show that the proposed cooperative spectrum sensing algorithm can efficiently enhance the spectrum sensing performance of the cognitive radio system.
同期刊论文项目
同项目期刊论文
期刊信息
位置：