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International Journal of Wireless and Microwave Technologies(IJWMT)

ISSN: 2076-1449 (Print), ISSN: 2076-9539 (Online)

Published By: MECS Press

IJWMT Vol.1, No.6, Dec. 2011

Joint Beam-Power Coordinative Scheduling of Neighboring Sectors in Cellular Systems

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Author(s)

Fei Ji,Ying Liu,Fangjiong Chen,Xiaodong Chen,Shangkun Xiong

Index Terms

Cellular System; Cooperative Beam Scheduling; Constrained Optimization

Abstract

Beam cooperative scheduling of downlink transmission is an important technique to improve the spectrum efficiency in next generation mobile networks. This paper focuses on switched beams (the emission angles of the beams are fixed) and proposes a joint beam-power coordinative scheduling algorithm among neighbor sectors in the downlink of mobile systems. Each sector coordinates the applied order and transmitted power of the beams with adjacent interfering sector, so as to reduce inter-sector interference and maximize throughputs. This scheduling problem is modeled as a constrained optimization problem and solved by our proposed iterative approach. Computer simulation shows that the proposed approach significantly outperform the existing round robin beam servicing approach and the approach that applies only beam cooperative scheduling.

Cite This Paper

Fei Ji,Ying Liu,Fangjiong Chen,Xiaodong Chen,Shangkun Xiong,"Joint Beam-Power Coordinative Scheduling of Neighboring Sectors in Cellular Systems", IJWMT, vol.1, no.6, pp.10-18, 2011.

Reference

[1]Patrick Hosein. Cooperative Scheduling of Downlink Beam Transmissions in a Cellular Network[C].GLOBECOM Workshops 2008 IEEE, Dec.2008

[2]Stefania sesa,et.al.LTE-the UMTS Long Term Evolution: fromtheory to practice[M].UK:A John Wiley and Sons,Ltd,Publication,2009:285-299

[3]Wangtong,Weigao. The application of Bulter multi-beam matrix in TD-SCDMA system [J]. Electronic technology applications,2005,(08):55-56(in Chinese)

[4]T.Kuze,et.al. Analogue Beamforming. IEEE 802.16 Broadband Wireless Access Working Group, Contribution No. IEEE C802.16m-08/438, May. 2007

[5]3GPP,R1-084352, HuaWei, Some Results on DL coordinated beam switching for interference management in LTE- Advanced, Nov. 2008 

[6]Chenxiang, Xiaolimin, et.al. a muti-antenna coordinative scheduling among cells in cellular communication system China, 200910077815.9[P] 2009-01-22(in Chinese)

[7]P. Hosein. On the Optimal Allocation of Downlink Resources in OFDM-Based Wireless Networks[J]. Lecture Notes in Computer Science, vol.3970/2006, Ch. 15

[8]Honghai Zhang,et.al. Distributed inter-cell interference mitigation OFDMA wireless data networks[C].GLOBECOM Workshops 2008 IEEE, Dec.2008

[9]Long Term Evolution(LTE): Overview of LTE Air-interface Technical White Paper: Motorola. http://business.motorola.com/experiencelte/ pdf/LTEAirInterfaceWhitePaper.pdf

[10]Zhouyuan.the downlink scheduling algorithm in MAC layer in LTE syetem [D].Xian: Xian university of electronic science and technology,2009(in Chinese)