Optimal deployment of assisting cells for multimedia push in single frequency network

Long term evolution (LTE) systems are equipped deliberately with the multimedia broadcast/multicast service over a single frequency network (MBSFN) to save transmitting resources. With the usage of assisting cells in MBSFN transmission, there is a significant effect on raising spectral efficiency (S...

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Bibliographic Details
Published inJournal of communications and networks Vol. 19; no. 2; pp. 114 - 123
Main Authors Chen, Huangqing, Zhong, Xiaofeng, Wang, Jing
Format Journal Article
LanguageEnglish
Published Seoul Editorial Department of Journal of Communications and Networks 01.04.2017
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
한국통신학회
Subjects
Assisting cells deployment
Computer simulation
Digital multimedia broadcasting
energy efficiency
hexagonal
Interference
Long Term Evolution
long term evolution (LTE)
Mobile communication systems
Multicast
Multimedia
multimedia broadcast/multicast service over a single frequencynetwork (MBSFN)
Multimedia communication
Shape
Signal to noise ratio
Unicast
Wireless communications
전자/정보통신공학
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Summary:Long term evolution (LTE) systems are equipped deliberately with the multimedia broadcast/multicast service over a single frequency network (MBSFN) to save transmitting resources. With the usage of assisting cells in MBSFN transmission, there is a significant effect on raising spectral efficiency (SE), and energy efficiency (EE) may be promoted synchronously. In this paper, we propose a circle model to approximate the SE in a hexagonal user equipment (UE) drop area for analysis. Based on themodel, the optimal allocating scheme of assisting cells with a certain number is presented. Both in theory and simulation, the SE is changed nonlinearly while increasing the number of assisting cells under the optimal allocating scheme. Evaluated by EE, it is proved that the optimal deployment of assisting cells is shown as a number of assisting rings, and the optimal number of assisting rings is related to the size of hexagonal UE drop area. Compared with nonuse of assisting cells, there is a significant improvement on EE as the optimal deployment configured, and the EE gains with different sizes of hexagonal UE drop areas are shown in simulation.
ISSN:1229-2370
1976-5541
DOI:10.1109/JCN.2017.000021