Professor Heath works in wireless communications, especially the area known as MIMO (multiple-input multiple-output) wireless communication for more than two decades. In a MIMO system, multiple antennas at the transmitter and receiver are leveraged to improve the wireless communication link, for example to provide higher data rates in a given amount of radio spectrum. MIMO communication is a key technology in cellular communications, starting with later releases of 3G, then into 4G and now 5G, as well as in wireless local area networks including IEEE 802.11n/ac/ad/ay/ax among others. His group has made diverse contributions to advance MIMO technology in commercial wireless systems including analysis, algorithms and prototyping.