Exact expressions for bit-error probability (BEP) for coherent square detection of uncoded and coded M-ary quadrature amplitude modulation (MQAM) using an array of antennas with maximal ratio combining (MRC) in a flat fading channel interference limited system in a Nakagami-m fading environment is derived. The analysis assumes an arbitrary number of independent and identically distributed Nakag...

The relevance of sustainable tourism is unquestionable. Tourism and hospitality firms worldwide are moving toward more product offerings. However, not all communicate their achievements commitments in this area. This study assesses the digital communication small medium accommodation relates that information to sophistication online presence. For purpose, data were retrieved from websites 759 l...

The proliferation of electronic devices supporting sensing, actuation, and wireless communication enables the monitoring and/or control of a variety of physical systems with digital communication. Such “cyber physical systems” blur the boundaries of the digital and physical worlds, where correct information about the physical world is needed for the correct operation of the digital system. Ofte...

A comprehensive, plant-wide hazardous gas risk management system needs to be capable of bringing together all of the necessary information that allows the operator to make decisions correctly and quickly that protect plant and personnel. Such a system incorporates digital communication links from each sensor to the controller and links the gas detection control system to Ethernet for plant-wide...

The data acquisition equipment is very useful and popular equipment in agriculture and the other fields. This paper introduces the design of a portable data acquisition and communication system used in cropland. It collect signals of various analog and digital sensors, GPS space and time data, saving data by USB interface and transmission through WCDMA or Bluetooth. The key technology of the sy...