计算机科学 ›› 2018, Vol. 45 ›› Issue (6A): 266-269.
曹开田1,2,杭燚灵2
CAO Kai-tian1,2,HANG Yi-ling2
摘要: 针对当前小样本情况下的能量检测(Energy Detection,ED)方法只对AWGN(Additive White Gaussian Noise)非衰落信道上的检测性能进行了近似分析的不足,利用广义Marcum Q函数的最新研究成果对小样本条件下的ED方法进行研究,推导出在瑞利衰落信道下易处理的、精确的ED检测概率闭式解表达式,并对其检测性能进行了分析。理论分析和仿真结果表明,与目前采用中心极限定理(Central Limit Theorem,CLT)、多维高斯(Cube-of-Gaus-sian,CoG)近似法及其他近似法分析ED检测性能相比,所提方法在小样本情况下具有更稳定、更精确的检测性能。
中图分类号:
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