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By Professor Lee C. Potter
Dr. Yang Yang
Electrical and Computer Engineering
The Ohio State University
The laboratory course provides hands-on exploration of physical layer communication. Through a sequence of guided explorations, students design and implement a digital communication system with modulation to an acoustic carrier frequency. The materials are designed to support both a structured laboratory course and self-study; the course is intended for upper-level undergraduates and assumes a prerequisite course in signals and systems. Acoustic operation allows students to hear, see, and wirelessly transmit signals using readily available, low-cost hardware, such as a PC with sound card or a smartphone. Acoustic wireless transmission, while readily accessible, nonetheless presents a student with the channel impairments and synchronization issues encountered in radio frequency systems. An accompanying smartphone app provides an acoustic transmitter for receiver testing and is available for free download. MATLAB files provide code for creating examples and figures found in the text.