摘要
近年来,多种无线通信技术蓬勃发展,越来越多的用户希望实现多种异构网络的融合,感知无线电技术能够感知周围其他网络中未被占用的的频谱资源,并通过频谱分配技术使用空闲频谱,从而实现异构网络的融合。但是感知用户会对异构网络中的授权用户产生干扰,本文引入了一种基于SIR的功率分配技术,通过功率分配,降低了用户之间的相互干扰,提高了异构融合网络的系统性能。
In recent years, the wireless network technology has a great development. More and more users hope to realize the convergence of the multi-heterogeneous network. The cognitive users can sense the idle spectrum which is not occupied by this technology. Then it can realize the convergence of the heterogeneous network. But the cognitive user will produce the interference for the licensed user. This paper uses a power allocation technique based on SIR. Simulation results prove that theinterference will be reduced and the performance will be improved after using the power allocation.
出处
《电子测试》
2015年第11X期95-97,共3页
Electronic Test
关键词
感知无线电
异构融合网络
功率分配
cognitive radio
heterogeneous convergednetwork
power allocation
