TY - GEN
T1 - The energy harvesting multiple access channel with energy storage losses
AU - Tutuncuoglu, Kaya
AU - Yener, Aylin
PY - 2012
Y1 - 2012
N2 - This work considers a Gaussian multiple access channel with two energy harvesting transmitters with lossy energy storage. The power allocation policy maximizing the average weighted sum rate given the energy harvesting profiles is found. In particular, it is shown that the optimal policy has a double-threshold structure on each of the transmit powers, while the two transmit powers interact through the multivariate achievable rate function which determines the thresholds. For the special case of sum rate maximization in a Gaussian MAC channel, it is shown that the thresholds apply to the sum power, and the optimal policy consists of three thresholds, rather than four, which enables the user with a more efficient battery to be given priority in energy storage.
AB - This work considers a Gaussian multiple access channel with two energy harvesting transmitters with lossy energy storage. The power allocation policy maximizing the average weighted sum rate given the energy harvesting profiles is found. In particular, it is shown that the optimal policy has a double-threshold structure on each of the transmit powers, while the two transmit powers interact through the multivariate achievable rate function which determines the thresholds. For the special case of sum rate maximization in a Gaussian MAC channel, it is shown that the thresholds apply to the sum power, and the optimal policy consists of three thresholds, rather than four, which enables the user with a more efficient battery to be given priority in energy storage.
UR - http://www.scopus.com/inward/record.url?scp=84873150258&partnerID=8YFLogxK
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U2 - 10.1109/ITW.2012.6404772
DO - 10.1109/ITW.2012.6404772
M3 - Conference contribution
AN - SCOPUS:84873150258
SN - 9781467302234
T3 - 2012 IEEE Information Theory Workshop, ITW 2012
SP - 94
EP - 98
BT - 2012 IEEE Information Theory Workshop, ITW 2012
T2 - 2012 IEEE Information Theory Workshop, ITW 2012
Y2 - 3 September 2012 through 7 September 2012
ER -