The 19th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2018, will be held in Kalamata, Greece, June 25-28, 2018. The workshop is devoted to advances in signal processing for wireless communications, networking, and information theory. The technical program features plenary talks, tutorials, as well as invited and contributed papers presented in poster format. The conference proceedings will be published on IEEE Xplore.