MIMO泊松衰落信道的中断容量研究

Kaushik Chakraborty, S. Dey, M. Franceschetti
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引用次数: 3

摘要

考虑了受块衰落影响的短噪声有限直接检测多输入多输出(MIMO)光信道的信息中断概率。信息通过调制多个光信号的强度在该通道上传输,每个光信号对应一个发射孔径,并且在多个接收光电探测器孔径处观察到单个光子到达。传输的信号经历乘法衰落,衰落发生在固定持续时间的相干间隔内,在每个相干间隔内信道衰落矩阵保持不变。信道衰减矩阵以独立和相同分布的方式在连续的相干间隔中变化。假设发送端和接收端具有完美的信道状态信息(CSI)。主要贡献是将中断概率问题表述为优化问题,并精确表征了具有两个发射孔的MIMO泊松衰落信道的特殊情况下的最优解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
On Outage Capacity of MIMO Poisson Fading Channels
The information outage probability of a shot-noise limited direct detection multiple-input multiple-output (MIMO) optical channel subject to block fading is considered. Information is transmitted over this channel by modulating the intensity of a number of optical signals, one corresponding to each transmit aperture, and individual photon arrivals are observed at multiple receive photodetector apertures. The transmitted signals undergo multiplicative fading, and the fading occurs in coherence intervals of fixed duration in each of which the channel fade matrix remains constant. The channel fade matrix varies across successive coherence intervals in an independent and identically distributed fashion. The transmitter and the receiver are assumed to have perfect channel state information (CSI). The main contributions are a formulation of the outage probability problem as an optimization problem and an exact characterization of the optimal solution for the special case of the MIMO Poisson fading channel with two transmit apertures.
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