TY - GEN
T1 - Mobile user association for heterogeneous networks using optimal transport theory
AU - Ghazzai, Hakim
AU - Tembine, Hamidou
AU - Alouini, Mohamed Slim
N1 - Funding Information:
This work was made possible by NPRP grant # 6-001-2-001 from the Qatar National Research Fund (A member of The Qatar Foundation). The statements made herein are solely the responsibility of the authors.
Publisher Copyright:
© 2017 IEEE.
PY - 2017/7/2
Y1 - 2017/7/2
N2 - This paper investigates the mobile user association problem for heterogeneous networks. More specifically, it applies the optimal transport (OT) concept to determine the cells corresponding to each base station (BS) that minimize the total transmit power consumption of orthogonal frequency-division multiple access (OFDMA) cellular networks. This is performed by respecting the network quality of service and by taking into account the resource limitation per BS (e.g., power budget and number of resource blocks). Starting from given BS locations and user distributions, a fixed point algorithm is employed to find the optimal solution for the formulated problem. Selected numerical results investigate various practical scenarios with different user distributions and show that the cell boundaries obtained using OT solution provide a significant energy saving compared to the classical Voronoi cell boundaries.
AB - This paper investigates the mobile user association problem for heterogeneous networks. More specifically, it applies the optimal transport (OT) concept to determine the cells corresponding to each base station (BS) that minimize the total transmit power consumption of orthogonal frequency-division multiple access (OFDMA) cellular networks. This is performed by respecting the network quality of service and by taking into account the resource limitation per BS (e.g., power budget and number of resource blocks). Starting from given BS locations and user distributions, a fixed point algorithm is employed to find the optimal solution for the formulated problem. Selected numerical results investigate various practical scenarios with different user distributions and show that the cell boundaries obtained using OT solution provide a significant energy saving compared to the classical Voronoi cell boundaries.
KW - Heterogeneous networks
KW - mobile user association
KW - optimal transport
KW - power allocation
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U2 - 10.1109/COMNET.2017.8285588
DO - 10.1109/COMNET.2017.8285588
M3 - Conference contribution
AN - SCOPUS:85050583312
T3 - 2017 6th International Conference on Communications and Networking, ComNet 2017 - Proceedings
SP - 1
EP - 6
BT - 2017 6th International Conference on Communications and Networking, ComNet 2017 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 6th International Conference on Communications and Networking, ComNet 2017
Y2 - 29 March 2017 through 1 April 2017
ER -