TY - RPRT TI - Future generation wireless research and development gaps report AU - Golmie, Nada AU - Cypher, David AU - Leh, Marc AU - Ziegler, Darcy PY - 2018 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST SP 1219 DO - 10.6028/NIST.SP.1219 ER -