Load Balancing for 5G Ultra-Dense Networks Using Device-to-Device Communications

被引:44
作者
Zhang, Hongliang [1 ]
Song, Lingyang [1 ]
Zhang, Ying Jun [2 ]
机构
[1] Peking Univ, Sch Elect Engn & Comp Sci, Beijing 100871, Peoples R China
[2] Chinese Univ Hong Kong, Dept Informat Engn, Hong Kong, Hong Kong, Peoples R China
关键词
Device-to-device communications; ultra-dense small cell network; load balancing; sum-rate maximization; non-convex optimization; CHANNEL ASSIGNMENT; CELLULAR NETWORKS; UNDERLAY; PERFORMANCE; SYSTEMS;
D O I
10.1109/TWC.2018.2819648
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Load balancing is an effective approach to address the spatial-temporal fluctuation problem of mobile data traffic for cellular networks. The existing schemes that focus on channel borrowing from neighboring cells cannot be directly applied to the future 5G wireless networks, because the neighboring cells will reuse the same spectrum band in 5G systems. In this paper, we consider an orthogonal frequency division multiple access ultra-dense small cell network, where device-to-device (D2D) communication is advocated to facilitate load balancing without extra spectrum. Specifically, the data traffic can be effectively offloaded from a congested small cell to other underutilized small cells by D2D communications. The problem is naturally formulated as a joint resource allocation and D2D routing problem that maximizes the system sum-rate. To efficiently solve the problem, we decouple the problem into a resource allocation subproblem and a D2D routing subproblem. The two subproblems are solved iteratively as a monotonic optimization problem and a complementary geometric programming problem, respectively. Simulation results show that the data sum-rate in the neighboring small cells increases 20% on average by offloading the data traffic in the congested small cell to the neighboring small cell base stations.
引用
收藏
页码:4039 / 4050
页数:12
相关论文
共 36 条
[11]   Heterogeneous Cellular Networks: From Theory to Practice [J].
Ghosh, Amitabha ;
Mangalvedhe, Nitin ;
Ratasuk, Rapeepat ;
Mondal, Bishwarup ;
Cudak, Mark ;
Visotsky, Eugene ;
Thomas, Timothy A. ;
Andrews, Jeffrey G. ;
Xia, Ping ;
Jo, Han Shin ;
Dhillon, Harpreet S. ;
Novlan, Thomas D. .
IEEE COMMUNICATIONS MAGAZINE, 2012, 50 (06) :54-64
[12]   Incentivizing Device-to-Device Load Balancing for Cellular Networks: An Online Auction Design [J].
Hajiesmaili, Mohammad H. ;
Deng, Lei ;
Chen, Minghua ;
Li, Zongpeng .
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 2017, 35 (02) :265-279
[13]   Data Offloading in Load Coupled Networks: A Utility Maximization Framework [J].
Ho, Chin Keong ;
Yuan, Di ;
Sun, Sumei .
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2014, 13 (04) :1921-1931
[14]   CBWL - A NEW CHANNEL ASSIGNMENT AND SHARING METHOD FOR CELLULAR COMMUNICATION-SYSTEMS [J].
JIANG, H ;
RAPPAPORT, SS .
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 1994, 43 (02) :313-322
[15]   Global Optimal Rate Control and Scheduling for Spectrum-Sharing Multi-Hop Networks [J].
Li, Junchao ;
Qian, Li Ping ;
Zhang, Ying Jun ;
Shen, Lianfeng .
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2016, 15 (09) :6462-6473
[16]   An Overview of 3GPP Device-to-Device Proximity Services [J].
Lin, Xingqin ;
Andrews, Jeffrey G. ;
Ghosh, Amitabha ;
Ratasuk, Rapeepat .
IEEE COMMUNICATIONS MAGAZINE, 2014, 52 (04) :40-48
[17]   Design and Performance Analysis of An Energy-Efficient Uplink Carrier Aggregation Scheme [J].
Liu, Fei ;
Zheng, Kan ;
Xiang, Wei ;
Zhao, Hui .
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 2014, 32 (02) :197-207
[18]   DEVICE-TO-DEVICE COMMUNICATIONS ACHIEVE EFFICIENT LOAD BALANCING IN LTE-ADVANCED NETWORKS [J].
Liu, Jiajia ;
Kawamoto, Yuichi ;
Nishiyama, Hiroki ;
Kato, Nei ;
Kadowaki, Naoto .
IEEE WIRELESS COMMUNICATIONS, 2014, 21 (02) :57-65
[19]   Adapting Cellular Networks to Whitespaces Spectrum [J].
Madhavan, Mukundan ;
Ganapathy, Harish ;
Chetlur, Malolan ;
Kalyanaraman, Shivkumar .
IEEE-ACM TRANSACTIONS ON NETWORKING, 2015, 23 (02) :383-397
[20]   Introduction [J].
不详 .
FOUNDATIONS AND TRENDS IN COMMUNICATIONS AND INFORMATION THEORY, 2005, 2 (1-2)