Pilot-aided estimation and equalisation of a Radio-over-Fibre system in Wideband Code Division Multiple Access
Pilot-aided estimation and equalisation of a Radio-over-Fibre system in Wideband Code Division Multiple Access
复制标题
宽带码分多址中光纤无线电系统的导频辅助估计和均衡
DOI：
10.1049/iet-com.2012.0660
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发表时间：
2013
影响因子：
1.6
通讯作者：
Baghersalimi G
中科院分区：
文献类型：
--
作者：
Baghersalimi G
在这项研究中，无线光纤（RoF）子系统的宽带码分多址的容量性能的影响进行了评估。本研究探讨了使用导频辅助信道估计来补偿不同信道条件、估计间隔和编码方案的光学子系统非线性。结果表明，导频辅助信道估计是一种有效的方法，用于补偿光学子系统和射频（RF）信道的复合损伤。它被发现，总是有一个合适的导频功率电平，最大限度地提高系统容量性能的编码方案和信道条件无关。此外，峰值容量仅轻微地受到估计间隔的减小的影响。
In this study, the impact of a Radio‐over‐Fibre (RoF) subsystem on the capacity performance of wideband code division multiple access is evaluated. This study investigates the use of pilot‐aided channel estimation to compensate for the optical subsystem non‐linearities for different channel conditions, estimation intervals and coding schemes. The results show that pilot‐aided channel estimation is an effective method for compensating the composite impairments of the optical subsystem and the radio frequency (RF) channel. It is found that there is always a suitable pilot power level which maximises the system capacity performance regardless of coding scheme and channel condition. Also, the peak capacity is only slightly affected by a decrease in the estimation interval.