Multi-element array antennas for free-space optical communication
Multi-element array antennas for free-space optical communication
复制标题
用于自由空间光通信的多元件阵列天线
DOI：
10.1109/wocn.2005.1436010
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
S. Kalyanaraman
中科院分区：
文献类型：
--
作者：
J. Akella;M. Yuksel;S. Kalyanaraman
本文研究了在自由空间光通信中使用二维多元阵列天线的可行性。二维阵列上多天线的空间分集可以增加链路的总带宽。另一方面，阵列上各单元之间的同步传输会造成信道间干扰，降低有效带宽。我们将这种信道间干扰建模为噪声，并找出由这种噪声引起的误差概率。基于该误差模型，我们推导出信道容量估计。我们提出了基于链路范围、可在给定阵列上封装的光收发器（元件）数量以及可实现的聚合带宽的设计指南。
In this paper we examine the feasibility of using 2-dimensional multiple element array antennas for free-space optical communications. Spatial diversity due to multiple antennas on 2-d arrays can increase aggregate link bandwidth. On the other hand, simultaneous transmissions between the elements on the arrays can cause inter-channel interference, reducing the effective bandwidth. We model this inter-channel interference as noise and find the probability of error due to such noise. Based on this error model, we then derive channel capacity estimations. We present design guidelines based on the link range, number of optical transceivers (elements) that can be packed on a given array, and the achievable aggregate bandwidth.