SIMKEYS: an efficient approach in text entry for mobile communications. - Rick W. Ha; Pin-Han Ho; Xuemin Sherman Shen (CCNC, 2004)

SIMKEYS: an efficient keypad configuration for mobile communications. - Rick W. Ha; Pin-Han Ho; Xuemin (Sherman) Shen (IEEE Commun. Mag., 2004)

SS-Trees: A cross-layer organizational approach for mesh-based wide-area wireless sensor networks. - Rick W. Ha; Pin-Han Ho; Sherman X. Shen (BROADNETS, 2005)

Cross-layer application-specific wireless sensor network design with single-channel CSMA MAC over sense-sleep trees. - Rick W. Ha; Pin-Han Ho; Sherman X. Shen (Comput. Commun., 2006)

Sleep scheduling for wireless sensor networks via network flow model. - Rick W. Ha; Pin-Han Ho; Sherman X. Shen; Junshan Zhang (Comput. Commun., 2006)

Optimal sleep scheduling with transmission range assignment in application-specific wireless sensor networks. - Rick W. Ha; Pin-Han Ho; Xuemin Shen (Int. J. Sens. Networks, 2006)