D2D Enhanced Heterogeneous Cellular Networks With Dynamic TDD
D2D Enhanced Heterogeneous Cellular Networks With Dynamic TDD
复制标题
具有动态 TDD 的 D2D 增强型异构蜂窝网络
DOI:
10.1109/twc.2015.2418192
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发表时间:
2014-06
影响因子:
10.4
通讯作者:
Quek Tony Q. S.
中科院分区:
文献类型:
--
作者:
Sun Hongguang;Wildemeersch Matthias;Sheng Min;Quek Tony Q. S.
Over the last decade, the growing amount of uplink (UL) and downlink (DL) mobile data traffic has been characterized by substantial asymmetry and time variations. Dynamic time-division duplex (TDD) has the capability to accommodate to the traffic asymmetry by adapting the UL/DL configuration to the current traffic demands. In this work, we study a two-tier heterogeneous cellular network (HCN) where the macro tier and small cell tier operate according to a dynamic TDD scheme on orthogonal frequency bands. To offload the network infrastructure, mobile users in proximity can engage in device-to-device (D2D) communications, whose activity is determined by a carrier sensing multiple access (CSMA) scheme to protect the ongoing infrastructure-based and D2D transmissions. We present an analytical framework for evaluating the network performance in terms of load-aware coverage probability and network throughput. The proposed framework allows quantification of the effect on the coverage probability of the most important TDD system parameters, such as the UL/DL configuration, the base station density, and the bias factor. In addition, we evaluate how the bandwidth partition and the D2D network access scheme affect the total network throughput. Through the study of the tradeoff between coverage probability and D2D user activity, we provide guidelines for the optimal design of D2D network access.
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DOI:
10.1109/twc.2011.060811.102120
发表时间:
2011-08-01
影响因子:
10.4
作者:
Yu, Chia-Hao;Doppler, Klaus;Tirkkonen, Olav
通讯作者:
Tirkkonen, Olav
影响因子:
8.3
作者:
V. Chandrasekhar;J. Andrews
通讯作者:
V. Chandrasekhar;J. Andrews
DOI:
10.1109/lcomm.2011.061611.110960
发表时间:
2011-03
期刊:
IEEE Communications Letters
影响因子:
--
作者:
M. Haenggi
通讯作者:
M. Haenggi
DOI:
10.1109/glocomw.2012.6477639
发表时间:
2012-12
期刊:
2012 IEEE Globecom Workshops
影响因子:
--
作者:
Bo Yu;S. Mukherjee;H. Ishii;Liuqing Yang
通讯作者:
Bo Yu;S. Mukherjee;H. Ishii;Liuqing Yang
DOI:
--
发表时间:
2013-09
期刊:
ArXiv
影响因子:
--
作者:
M. Wildemeersch;Tony Q. S. Quek;M. Kountouris;A. Rabbachin;C. Slump
通讯作者:
M. Wildemeersch;Tony Q. S. Quek;M. Kountouris;A. Rabbachin;C. Slump