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Article | 30-November-2018

Multi Antenna Precoding Algorithm Based on M Spread Spectrum

mobile communication. However, the influence of channel parameters on receiver terminals can not be ignored in signal transmission. Therefore, a precoding algorithm based on M spread spectrum is proposed, which is pre processed before sending signals. In order to achieve the purpose of simplifying the receiving device. II. MULTI ANTENNA MIMO SYSTEM A. Multi Antenna MIMO System Model MIMO multi antenna technology is a major breakthrough in antenna technology in the field of wireless mobile

Sun Ruihua, Bai Junying, An Yongli

International Journal of Advanced Network, Monitoring and Controls, Volume 3 , ISSUE 3, 61–69

research-article | 30-November-2020

Energy harvested end nodes and performance improvement of LoRa networks

Petäjäjärvi et al. (2017) and Raza et al. (2017). A solution given for LPWAN is the LoRaTM platform, which enables lower power and lower cost end devices, with a reliable backup system. The end-users (EU) communicates in sub-GHz bands (different in every country) and uses frequency shift keying (FSK) modulation, or a chirp spread spectrum (CSS) modulation, in which the signal is spread over a wide band channel, with the ability to recover quickly from noise and interference. The research community is

Gunjan Gupta, Robert Van Zyl

International Journal on Smart Sensing and Intelligent Systems, Volume 14 , ISSUE 1, 1–15

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