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Frontiers of Electrical and Electronic Engineering

ISSN 2095-2732

ISSN 2095-2740(Online)

CN 10-1028/TM

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Front Elect Electr Eng Chin    2009, Vol. 4 Issue (1) : 31-34    https://doi.org/10.1007/s11460-009-0007-0
RESEARCH ARTICLE
Power allocation scheme for multicell interference coordination in OFDMA systems
Zhiwei LI(), Chunyan FENG, Tiankui ZHANG, Jieying ZHENG
Institute of Communication Networks Integrated Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China
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Abstract

To coordinate inter-cell interference, a multicell adaptive power allocation scheme is proposed for downlink orthogonal frequency division multiple access (OFDMA) cellular systems. This scheme uses the difference of the signal to interference plus noise ratio (SINR) between the co-subchannels of adjacent cells to balance SINR for coordinating the transmit power in the co-subchannels. The scheme can improve edge user performance, reduce interference between the co-subchannels of adjacent cells and improve radio resource utility. Simulation results show that the scheme can balance system performance and ensure system throughput.
Keywords orthogonal frequency division multiple access (OFDMA)      power allocation      inter-cell interference      interference coordination     
Corresponding Author(s): LI Zhiwei,Email:lihere11@gmail.com   
Issue Date: 05 March 2009
 Cite this article:   
Zhiwei LI,Chunyan FENG,Tiankui ZHANG, et al. Power allocation scheme for multicell interference coordination in OFDMA systems[J]. Front Elect Electr Eng Chin, 2009, 4(1): 31-34.
 URL:  
https://academic.hep.com.cn/fee/EN/10.1007/s11460-009-0007-0
https://academic.hep.com.cn/fee/EN/Y2009/V4/I1/31
parametervalue
number of sectors in each cell3
sector reuse factor1
system bandwidth10 MHz
number of subcarriers600
number of subchannels24
total power of base station20 W
TTI0.5 ms
simulation time2000 TTI
Tab.1  Simulation parameters
Fig.1  Comparison of system fairness
Fig.2  Comparison of throughput
1 Zhang T K, Zeng Z M, Tang N,. A multicell adaptive resource allocation scheme for OFDMA cellular system. Journal of Beijing University of Posts and Telecommunitions , 2007, 30(5): 67–71 (in Chinese)
2 Wang L, Xue Y S, Schulz E. Resource allocation in multicell OFDM systems based on noncooperative game. In: Proceedings of IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications . 2006, 1–5
3 Wong C Y, Cheng R S, Lataief K B, Murch R D. Multiuser OFDM with adaptive subcarrier, bit, and power allocation. IEEE Journal on Selected Areas in Communications , 1999, 17(10): 1747–1758
doi: 10.1109/49.793310
4 Song G C, Li Y. Adaptive resource allocation based on utility optimization in OFDM. In: Proceedings of IEEE Global Telecommunications Conference , 2003 (GLOBECOM’03). 2003, 2: 586–590
5 Mohanram C, Bhashyam S. A sub-optimal joint subcarrier and power allocation algorithm for multiuser OFDM. IEEE Communications Letters , 2005, 9(8): 685–687
doi: 10.1109/LCOMM.2005.1496582
6 Texas Instruments . R1- 061487-2006, Uplink interference mitigation via power control. 2006
[1] CHEN Wei, CAO Zhigang, FAN Pingyi, Khaled B. Letaief. Cross layer optimization of downlink power allocation in multi-user wireless communication systems[J]. Front. Electr. Electron. Eng., 2007, 2(4): 381-387.
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