Capacity analysis and optimal power allocation for coordinated transmission in MIMO-OFDM systems

被引:26
作者
Cui QiMei [1 ]
Huang XueQing [1 ]
Luo Bing [1 ]
Tao XiaoFeng [1 ]
Jiang Jun [2 ]
机构
[1] Beijing Univ Posts & Telecommun, Key Laborary Universal Wireless Commun, Beijing 100876, Peoples R China
[2] StarPoint Commun Software Co Ltd, Beijing 100102, Peoples R China
关键词
coordinated multi-point transmission; multicell cooperation; capacity analysis; MIMO-OFDM; power allocation; frequency selective MIMO channel; RESOURCE-ALLOCATION; COOPERATION; STRATEGIES; DIVERSITY; NETWORKS;
D O I
10.1007/s11432-012-4563-1
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Coordinated transmission in multicell coordination networks has attracted much attentions in recent years. In the paper, we investigate one open problem in the above area, which is concerned with how to solve the closed-form optimal power allocation scheme of coordinated transmission in downlink orthogonal frequencydivision multiplexing (OFDM) systems with multiple antenna configurations and individual power constraints. A frequency-selective fading multiple-input multiple-output (MIMO) channel is considered. We derive the closed-form solutions of sum-rate capacity and optimal power allocations for coordinated transmission under the diversity case and the multiplexing case by solving the constrained optimization problems. Numerical simulations are performed to verify the derived theoretical conclusions by means of comparing the proposed optimal power allocation (OPA) scheme with the other two typical power allocation schemes. One is the power allocation scheme combining traditional water-filling with equal power (WS-EF PA). The other is equal power allocation (EPA) scheme.
引用
收藏
页码:1372 / 1387
页数:16
相关论文
共 22 条
[1]  
[Anonymous], 2009, TR 36.814 V9.0.0
[2]  
[Anonymous], CONVEX OPTIMIZATION
[3]  
[Anonymous], 2003, Introduction to SpaceTime Wireless Communications
[4]  
Bjornson E, 2010, IEEE GLOB COMM C GLO, P6
[5]   Cooperative Multicell Precoding: Rate Region Characterization and Distributed Strategies With Instantaneous and Statistical CSI [J].
Bjornson, Emil ;
Zakhour, Randa ;
Gesbert, David ;
Ottersten, Bjorn .
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2010, 58 (08) :4298-4310
[6]  
Fletcher R., 1980, PRACTICAL METHODS OP, VI
[7]  
Holma Harry., 2000, WCDMA UMTS, V1
[8]   PhantomNet: Exploring optimal multicellular multiple antenna systems [J].
Jafar, SA ;
Foschini, GJ ;
Goldsmith, AJ .
EURASIP JOURNAL ON APPLIED SIGNAL PROCESSING, 2004, 2004 (05) :591-604
[9]   Transmitter optimization for multiple antenna cellular systems [J].
Jafar, SA ;
Goldsmith, AJ .
ISIT: 2002 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY, PROCEEDINGS, 2002, :50-50
[10]   Multicell downlink capacity with coordinated processing [J].
Jing, Sheng ;
Tse, David N. C. ;
Soriaga, Joseph B. ;
Hou, Jilei ;
Smee, John E. ;
Padovani, Roberto .
EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING, 2008, 2008 (1)