QUATTRO: QoS-Capable Cross-Layer MAC Protocol for Wireless Sensor Networks. - Joel Ruiz; José R. Gallardo; Luis Villaseñor-González; Dimitrios Makrakis; Hussein T. Mouftah (GLOBECOM, 2009)

Cross-layer medium access control protocol with quality-of-service guarantees for wireless sensor networks. - Joel Ruiz; José R. Gallardo; Dimitrios Makrakis; Luis Villaseñor-González; Hussein T. Mouftah (EURASIP J. Wirel. Commun. Netw., 2011)

A flexible mobile ticket for intelligent public transportation. - Rafael Martínez-Peláez; Patricia Romero-Navarro; Aaron Garcia-Molina; Joel Ruiz (CCE, 2015)

P2PM-pay: Person to Person Mobile Payment Scheme Controlled by Expiration Date. - Rafael Martínez-Peláez; Homero Toral-Cruz; Joel Ruiz; Pablo Velarde-Alvarado (Wirel. Pers. Commun., 2015)