Performance Analysis of Hybrid RF/FSO System Using BPSK-SIM and DPSK-SIM Over Gamma-Gamma Turbulence Channel With Pointing Errors for Smart City Applications
Performance Analysis of Hybrid RF/FSO System Using BPSK-SIM and DPSK-SIM Over Gamma-Gamma Turbulence Channel With Pointing Errors for Smart City Applications
复制标题
针对智慧城市应用，在具有指向误差的 Gamma-Gamma 湍流信道上使用 BPSK-SIM 和 DPSK-SIM 的混合 RF/FSO 系统性能分析
DOI：
10.1109/access.2018.2881379
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发表时间：
2018
期刊：
影响因子：
3.9
通讯作者：
Prabu Krishnan
中科院分区：
文献类型：
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作者：
Prabu Krishnan
无线通信无空间光学技术（FSO）由于其免许可带宽、易于安装、高安全性以及短距离通信的可行成本，在无线通信（RF）链路中具有许多优点。高速数据传输速率和抗电磁干扰能力使无线光通信成为当今的新兴技术。但是，无线光通信并不总是可靠的，特别是在大气条件下，如雾、雨、雾和雪。因此，考虑到一种新的混合FSO/RF技术，它结合了FSO和RF技术的优点。本文拟对视线通信中遇到的误差和不对准效应进行广泛的分析。指向误差和湍流效应是我们分析的主要缺陷参数。为此，我考虑了不同的调制技术-二进制相移键控-子载波强度调制，差分相移键控-子载波强度调制通信系统与开关键控（OOK）调制。利用Meijer-G函数推导了FSO和RF系统在弱、中、强湍流条件下的中断概率和误码率的新表达式。
The flourishing technology in wireless communication-free space optics (FSO) offers lots of merits over radio frequency (RF) links due to its license free bandwidth, ease of installation, high security features, and viable cost for short distance communication. It’s high speed data rate and immunity against electromagnetic interference makes FSO the emerging technology of today. But, FSO is not always reliable especially during atmospheric conditions, such as fog, rain, mist, and snow. Hence, in account a new technique of hybrid FSO/RF, this includes advantages of both FSO and RF technologies. Through this paper intend to perform an extensive analysis of the error and misalignment effects encountered in line of sight communication. Pointing error and turbulence effects are the main drawback parameters for our analysis. For this purpose I have taken into consideration different modulation techniques-binary phase shift keying-subcarrier intensity modulation, differential phase shift keying-subcarrier intensity modulation communication system with reference to on–off keying (OOK) modulation. The novel expressions for outage probability and BER for both FSO and RF system are derived which uses Rician channel and 16QAM modulation scheme alongside hybrid FSO/RF system for weak, moderate, and strong turbulence regimes using Meijer-G function.