非相同微参数下α-微衰落信道频谱共享系统性能研究

Hung Tran, T. Duong, H. Zepernick
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引用次数: 7

摘要

频谱共享是认知无线电网络中提高无线通信系统频谱利用率的一种很有前途的方法。本文分析了一种通用衰落模型,即α-μ衰落信道,在峰值干扰功率约束下频谱共享系统的性能。特别地,我们导出了不同衰落参数μ的端到端信噪比的概率密度函数和累积分布函数等统计特征的表达式。利用这些统计量,我们得到了所考虑的频谱共享系统的中断概率、衰落量和近似遍历容量的封闭表达式。最后,通过蒙特卡罗仿真验证了分析结果。
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On the performance of spectrum sharing systems over α-µ fading channel for non-identical µ parameter
Spectrum sharing is a promising approach in cognitive radio networks to improve the spectrum utilization of wireless communication systems. In this paper, we analyze the performance of spectrum sharing systems under the peak interference power constraint for a general fading model, namely the α-μ fading channel. In particular, we derive expressions for statistical characteristics such as probability density function and cumulative distribution function of the end-to-end signal-to-noise ratio for dissimilar fading parameter μ. Using these statistics, we obtain the closed-form expressions for outage probability, amount of fading and approximate ergodic capacity for the considered spectrum sharing system. Finally, Monte Carlo simulations are presented to verify the analytical results.
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