A low-latency and energy-efficient algorithm for convergecast in wireless sensor networks. - Sarma Upadhyayula; Valliappan Annamalai; Sandeep K. S. Gupta (GLOBECOM, 2003)

Spanning tree based algorithms for low latency and energy efficient data aggregation enhanced convergecast (DAC) in wireless sensor networks. - Sarma Upadhyayula; Sandeep K. S. Gupta (Ad Hoc Networks, 2007)