[1] Phan NhuQuan, Jiang Huilin, Bui ThiOanh, et al. Modified particle swarm optimization-based antenna tiltangle adjusting scheme for LTE coverage optimization [J]. Journal of Southeast University (English Edition), 2015, 31 (4): 443-449. [doi:10.3969/j.issn.1003-7985.2015.04.003]

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Modified particle swarm optimization-based antenna tiltangle adjusting scheme for LTE coverage optimization()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

31

Issue:

2015 4

Page:

443-449

Research Field:

Information and Communication Engineering

Publishing date:

2015-12-30

Info

Title:

Modified particle swarm optimization-based antenna tiltangle adjusting scheme for LTE coverage optimization

Author(s):

Phan NhuQuan¹;  2;  Jiang Huilin¹;  Bui ThiOanh¹;  Li Pei¹;  Pan Zhiwen¹;  Liu Nan¹

¹National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
²Faculty of Mechatronics-Electronics, Lachong University, Bien Hoa City 810000, Vietnam

Keywords:

long term evolution(LTE)networks;  antenna tilt angle;  coverage optimization;  modified particle swarm optimization algorithm

PACS:

TN92

DOI:

10.3969/j.issn.1003-7985.2015.04.003

Abstract:

In order to solve the challenging coverage problem that the long term evolution(LTE)networks are facing, a coverage optimization scheme by adjusting the antenna tilt angle(ATA)of evolved Node B(eNB)is proposed based on the modified particle swarm optimization(MPSO)algorithm. The number of mobile stations(MSs)served by eNBs, which is obtained based on the reference signal received power(RSRP)measured from the MS, is used as the metric for coverage optimization, and the coverage problem is optimized by maximizing the number of served MSs. In the MPSO algorithm, a swarm of particles known as the set of ATAs is available; the fitness function is defined as the total number of the served MSs; and the evolution velocity corresponds to the ATAs adjustment scale for each iteration cycle. Simulation results show that compared with the fixed ATA, the number of served MSs by eNBs is significantly increased by 7.2%, the quality of the received signal is considerably improved by 20 dBm, and, particularly, the system throughput is also effectively increased by 55 Mbit/s.

References:

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Memo

Memo:

Biographies: Phan NhuQuan(1980—), male, graduate; Pan Zhiwen(corresponding author), male, doctor, professor, pzw@seu.edu.cn.
Foundation items: The National High Technology Research and Development Program of China(863 Program)(No.2014AA01A702), the National Science and Technology Major Project(No.2013ZX03001032-004), the National Natural Science Foundation of China(No.61221002, 61201170).
Citation: Phan NhuQuan, Jiang Huilin, Bui ThiOanh, et al. Modified particle swarm optimization-based antenna tilt angle adjusting scheme for LTE coverage optimization[J].Journal of Southeast University(English Edition), 2015, 31(4):443-449.[doi:10.3969/j.issn.1003-7985.2015.04.003]

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