TY - JOUR
T1 - Maximization of total throughput and device lifetime with non-linear battery properties
AU - Shin, Hun Min
AU - Park, Seok Hwan
AU - Jung, Jaehoon
AU - Lee, Sunho
AU - Lee, Inkyu
N1 - Funding Information:
Manuscript received April 12, 2017; revised July 7, 2017; accepted September 6, 2017. Date of publication September 22, 2017; date of current version December 8, 2017. This work was supported by the National Research Foundation through the Ministry of Science, ICT, and Future Planning (MSIP), Korean Government under Grant 2014R1A2A1A10049769 and Grant 2017R1A2B3012316. The associate editor coordinating the review of this paper and approving it for publication was J. Zhang. (Corresponding author: Inkyu Lee.).
PY - 2017/12
Y1 - 2017/12
N2 - This paper considers the maximization of total throughput and device lifetime for point-to-point multiple-input multiple-output communication systems, where a transmission node has a battery which exhibits non-linear battery discharge behaviors. We adopt a battery model called Peukert's law to render the non-linear battery characteristics and formulate the battery constraint from Peukert's law. Then, we prove that the total throughput is a strictly concave function in terms of the battery lifetime under the battery constraint. Also, we derive the optimality conditions for the total throughput maximization and device lifetime maximization problems from the strict concavity, and compute the optimal solutions by a bi-section method. Furthermore, we provide a solution based on asymptotic analysis for the case, where the eigenvalue distribution of the channel matrix is not available. In the simulation section, we conduct accurate battery discharge simulations to validate this paper. We confirm that the analysis matches well with the battery simulations, and the derived optimal scheme outperforms the baseline schemes, which neglect the non-linear battery discharge properties. Also, the proposed solution based on asymptotic analysis is shown to have almost the same performance compared with the optimal solution.
AB - This paper considers the maximization of total throughput and device lifetime for point-to-point multiple-input multiple-output communication systems, where a transmission node has a battery which exhibits non-linear battery discharge behaviors. We adopt a battery model called Peukert's law to render the non-linear battery characteristics and formulate the battery constraint from Peukert's law. Then, we prove that the total throughput is a strictly concave function in terms of the battery lifetime under the battery constraint. Also, we derive the optimality conditions for the total throughput maximization and device lifetime maximization problems from the strict concavity, and compute the optimal solutions by a bi-section method. Furthermore, we provide a solution based on asymptotic analysis for the case, where the eigenvalue distribution of the channel matrix is not available. In the simulation section, we conduct accurate battery discharge simulations to validate this paper. We confirm that the analysis matches well with the battery simulations, and the derived optimal scheme outperforms the baseline schemes, which neglect the non-linear battery discharge properties. Also, the proposed solution based on asymptotic analysis is shown to have almost the same performance compared with the optimal solution.
KW - Device lifetime
KW - MIMO systems
KW - Non-linear battery
KW - Total throughput
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U2 - 10.1109/TWC.2017.2753783
DO - 10.1109/TWC.2017.2753783
M3 - Article
AN - SCOPUS:85030687773
VL - 16
SP - 7774
EP - 7784
JO - IEEE Transactions on Wireless Communications
JF - IEEE Transactions on Wireless Communications
SN - 1536-1276
IS - 12
ER -