|Table of Contents|

[1] Tong En, Gong Shulei, Pan Zhiwen, You Xiaohu, et al. CoMP-transmission-based energy-efficient schemeselection algorithm for LTE-A systems [J]. Journal of Southeast University (English Edition), 2015, 31 (3): 297-303. [doi:10.3969/j.issn.1003-7985.2015.03.001]
Copy

CoMP-transmission-based energy-efficient schemeselection algorithm for LTE-A systems()
Share:

Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
31
Issue:
2015 3
Page:
297-303
Research Field:
Information and Communication Engineering
Publishing date:
2015-09-20

Info

Title:
CoMP-transmission-based energy-efficient schemeselection algorithm for LTE-A systems
Author(s):
Tong En1 Gong Shulei2 Pan Zhiwen1 You Xiaohu1
1National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
2School of Electronic Science and Engineering, Nanjing University, Nanjing 210013, China
Keywords:
energy efficiency green radio coordinated multipoint scheme selection nonlinear fractional programming
PACS:
TN91
DOI:
10.3969/j.issn.1003-7985.2015.03.001
Abstract:
In order to achieve higher system energy efficiency(EE), a new coordinated multipoint(CoMP)-transmission-based scheme selection energy saving(CTSES)algorithm is proposed for downlink homogeneous cellular networks. The problem is formulated as an optimization of maximizing system EE, under the constraints of the data rate requirement and the maximum transmit power. The problem is decomposed into power allocation and alternative scheme selection problems. Optimal power allocation is calculated for CoMP-JT(joint transmission)and CoMP-CS(coordinated scheduling)transmissions, and the scheme with higher EE is chosen. Since the optimal problem is a nonlinear fractional optimization problem for both CoMP transmission schemes, the problem is transformed into an equivalent problem using the parametric method. The optimal transmit power and optimal EE are obtained by an iteration algorithm in CoMP-JT and CoMP-CS schemes. Simulation results show that the proposed algorithm offers obvious energy-saving potential and outperforms the fixed CoMP transmission scheme. Under the condition of the same maximum transmit power limit, the empirical regularity of user distribution for scheme choice is presented, and using this regularity, the computational complexity can be reduced.

References:

[1] Hasan Z, Boostanimehr H, Bhargava V K. Green cellular networks: a survey, some research issues and challenges[J]. IEEE Communications Surveys & Tutorials, 2011, 13(4):524-540.
[2] Ismail M, Zhuang W. Network cooperation for energy saving in green radio communications[J]. IEEE Wireless Communications, 2011, 18(5):76-81.
[3] Han F, Safar Z, Liu R. Energy-efficient base-station cooperative operation with guaranteed QoS[J]. IEEE Transactions on Communications, 2013, 61(8): 3505-3517.
[4] Niu Z S, Zhou S, Hua Y, et al. Energy-aware network planning for wireless cellular system with inter-cell cooperation[J]. IEEE Transactions on Wireless Communications, 2012, 11(4):1412-1423.
[5] Sawahashi M, Kishiyama Y, Morimoto A, et al. Coordinated multipoint transmission/reception techniques for LTE-advanced coordinated and distributed MIMO[J]. IEEE Wireless Communications, 2010, 17(3):26-34.
[6] Irmer R, Droste H, Marsch P, et al. Coordinated multipoint: concepts, performance, and field trial results[J]. IEEE Communications Magazine, 2011, 49(2):102-111.
[7] Fehske A J, Marsch P, Fettweis G P. Bit per Joule efficiency of cooperating base stations in cellular networks[C]//IEEE Globecom Workshops. Miami, USA, 2010: 1406-1411.
[8] Onireti O, Heliot F, Imran M A. On the energy efficiency-spectral efficiency trade-off in the uplink of CoMP system[J]. IEEE Transactions on Wireless Communications, 2012, 11(2):556-561.
[9] Gencer C, Yanikomeroglu H, Yu F R. Cell switch off technique combined with coordinated multi-point transmission for energy efficiency in beyond-LTE cellular networks[C]//IEEE ICC Workshop. Ottawa, Canada, 2012:5931-5935.
[10] Zhao W T, Wang S W. Joint subchannel and power allocation in multiuser OFDM systems with minimal rate constraints[J]. International Journal of Communication Systems, 2014, 27(1):1-12.
[11] Ng D W K, Lo E S, Schober R. Energy-efficient resource allocation in multi-cell OFDMA systems with limited backhaul capacity[J]. IEEE Transactions on Wireless Communications, 2012, 11(10): 3618-3631.
[12] Xu Z K, Yang C Y, Li G Y, et al. Energy-efficient cooperative transmission in heterogeneous networks[C]//IEEE Wireless Communications and Networking Conference. Shanghai, China, 2013:4226-4231.
[13] Goldsmith A. Wireless communications[M]. Cambridge, UK: Cambridge University Press, 2005:105-107.
[14] Arnold O, Richter F, Fettweis G, et al. Power consumption modeling of different base station types in heterogeneous cellular networks[C]//Future Network Mobile Proceedings. Florence, Italy, 2010: 1-8.
[15] Monti P, Tombaz S, Wosinska L, et al. Mobile backhaul in heterogeneous network deployments: technology options and power consumption[C]//Transparent Optical Networks. Hong Kong, China, 2012:1-7.
[16] Chen M T, Kim H, Yang Y. Energy efficiency metrics for green wireless communications[C]//International Conference on Wireless Communications and Signal Processing. Nanjing, China, 2010:1-6.
[17] Dinkelbach W. On nonlinear fractional programming[J]. Management Science, 1967, 13: 492-498.
[18] Boyd S, Vandenberghe L. Convex optimization[M]. Cambridge, UK: Cambridge University Press, 2004: 213-215.
[19] Palomar D P, Chiang M. A tutorial on decomposition methods for network utility maximization[J]. IEEE Journal on Selected Areas in Communications, 2006, 24(8):1439-1451.
[20] 3GPP. TR 36.814 V9.0.0. 3rd generation partnership project; Technical specification group radio access network; Evolved universal terrestrial radio access(EUTRA); Further advancements for E-UTRA physical layer aspects(Release 9)[S]. Valbonne, France:3GPP, 2010.

Memo

Memo:
Biographies: Tong En(1971—), male, doctor; Pan Zhiwen(corresponding author), male, doctor, professor, pzw@seu.edu.cn.
Foundation items: The National Science and Technology Major Project(No.2013ZX03001032-004), the National High Technology Research and Development Program of China(863 Program)(No.2014AA01A702), Jiangsu Province Science and Technology Support Program(No. BE2012165), Foundation of Huawei Corp. Ltd.
Citation: Tong En, Gong Shulei, Pan Zhiwen, et al. CoMP-transmission-based energy-efficient scheme selection algorithm for LTE-A systems[J].Journal of Southeast University(English Edition), 2015, 31(3):297-303.[doi:10.3969/j.issn.1003-7985.2015.03.001]
Last Update: 2015-09-20