Abstract
This paper considers a two-user Gaussian interference channel with energy harvesting transmitters. Different than conventional battery powered wireless nodes, energy harvesting transmitters have to adapt transmission to availability of energy at a particular instant. In this setting, the optimal power allocation problem to maximize the sum throughput with a given deadline is formulated. The convergence of the proposed iterative coordinate descent method for the problem is proved and the short-term throughput maximizing offline power allocation policy is found. Examples for interference regions with known sum capacities are given with directional water-filling interpretations. Next, stochastic data arrivals are addressed. Finally, online and/or distributed near-optimal policies are proposed. Performance of the proposed algorithms are demonstrated through simulations.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 151-161 |
| Number of pages | 11 |
| Journal | Journal of Communications and Networks |
| Volume | 14 |
| Issue number | 2 |
| DOIs | |
| State | Published - Apr 12 2012 |
All Science Journal Classification (ASJC) codes
- Information Systems
- Computer Networks and Communications
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