Monitoring of water quality in a shrimp farm using a FANET

This paper develops an architecture for flying ad-hoc networks (FANETs) to enable monitoring of water quality in a shrimp farm. Firstly, the key monitoring parameters for the characterization of water quality are highlighted and their desired operational ranges are summarized. These parameters directly influence shrimp survival and healthy growth. Based on the considered sensing modality, a reference architecture for implementing a cost-effective FANET based mobile sensing platform is developed. The controlled mobility of the platform is harnessed to increase the spatial monitoring resolution without the need for extensive infrastructure deployment. The proposed solution will be offered to shrimp farmers in the Mexican state of Colima once the laboratory trials are concluded

Performance of a noncoherent decoder for spectral amplitude‐coding electronic‐code

The performance of a noncoherent decoder based on a pair of distributed‐based transversal filters architecture is reported. Analysis based on experimental results validates the decoder as a proof‐of‐concept using microwave integrated circuits. Front‐end transversal filters are designed with large degree of freedom to generate and correlate temporal phase‐coded signals. Receiving functions are aligned with slots of spectrally encoded channels to make available spectral amplitude‐coding electronic‐code division multiple access. Noncoherent ultra‐wideband receiver concepts are applied to model the decoder synchronized to shot noise pulse trains. The despreading operation involves capturing sufficient amount of energy to demodulate matched and unmatched users. Electronic transversal filters implemented with a suitable number of taps allow bipolar detection of concurrent users whereas the noncoherent reception of energy of sub‐bands is fundamental to achieve orthogonality among channels, as we show in this article

Energy-efficient user scheduling algorithm for LTE networks

status: publishe