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Optical Improved Quadrature Spatial Modulation for Cooperative Underwater Wireless Communication under Weak Oceanic Turbulence Conditions
IET Optoelectronics ( IF 1.6 ) Pub Date : 2020-10-28 , DOI: 10.1049/iet-opt.2020.0012
Anirban Bhowal 1 , Rakhesh Singh Kshetrimayum 1
Affiliation  

Amplify-and-forward cooperative underwater optical wireless communication employing optical improved quadrature spatial modulation (OIQSM) is proposed in this study. It uses multiple signal constellations, thereby improving the system performance. It uses multiple lasers but it activates only a few of them depending on the message bits and can transmit double modulated symbols in a single symbol interval. The OIQSM system performance is compared in terms of bit error rate (BER) with other existing schemes in the literature. The analysis is conducted for weak oceanic turbulence conditions, which is generally prevalent in deep oceans. The cost and power consumption analysis of OIQSM is performed to highlight its benefits over other schemes. It is observed that OIQSM yields a signal-to-noise ratio gain of at least 5.5 dB over the conventional optical spatial modulation scheme for any BER value between and .

中文翻译:

弱海洋湍流条件下协同水下无线通信的光学改进正交空间调制

在这项研究中提出了使用光学改进的正交空间调制(OIQSM)的放大转发协作水下光学无线通信。它使用多个信号星座图,从而提高了系统性能。它使用多个激光器,但仅根据消息位激活其中的几个激光器,并且可以在单个符号间隔内发送双调制符号。OIQSM系统的性能在误码率(BER)方面与文献中其他现有方案进行了比较。针对弱海洋湍流条件进行分析,该条件通常在深海中普遍存在。进行OIQSM的成本和功耗分析以突出其与其他方案相比的优势。可以看到,OIQSM的信噪比增益至少为5。
更新日期:2020-10-30
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