Greedy Transmission Strategies for Collaborative Beamforming with Energy Harvesting Sensors

Conference: WSA 2013 - 17th International ITG Workshop on Smart Antennas
03/13/2013 - 03/14/2013 at Stuttgart, Deutschland

Proceedings: WSA 2013

Pages: 6Language: englishTyp: PDF

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Berbakov, Lazar; Matamoros, Javier; Antòn-Haro, Carles (Centre Tecnològic de Telecomunicacions de Catalunya (CTTC), Parc Mediterrani de la Tecnologia, Av. Carl Friedrich Gauss 7, 08860 Castelldefels, Spain)

In this paper, we consider a scenario where two energy harvesting sensors cooperate to transmit a common message to a distant base station. The goal is to find the jointly optimal transmission (power allocation) policy which maximizes the total throughput for a given deadline. To solve the problem, we propose a semi-analytical greedy approach that we conjecture to be optimal. Performance is extensively assessed by means of computer simulations. As a benchmark, we consider a strategy where the transmission policy is separately optimized for each sensor.