2011/10/27 by Kaya Tutuncuoglu, Tutuncuoglu, Kaya, Aylin Yener +1
Engineering · #Energy Harvesting in Wireless Networks #Advanced MIMO Systems Optimization #Wireless Power Transfer Systems
paper · pdf · doi:10.48550/arxiv.1110.6161
This paper considers a two-user Gaussian interference channel with energy\nharvesting transmitters. Different than conventional battery powered wireless\nnodes, energy harvesting transmitters have to adapt transmission to\navailability of energy at a particular instant. In this setting, the optimal\npower allocation problem to maximize the sum throughput with a given deadline\nis formulated. The convergence of the proposed iterative coordinate descent\nmethod for the problem is proved and the short-term throughput maximizing\noffline power allocation policy is found. Examples for interference regions\nwith known sum capacities are given with directional water-filling\ninterpretations. Next, stochastic data arrivals are addressed. Finally online\nand/or distributed near-optimal policies are proposed. Performance of the\nproposed algorithms are demonstrated through simulations.\n