ZTE

ZTE Communications ›› 2011, Vol. 9 ›› Issue (4): 55-62.

• Special Topic • Previous Articles     Next Articles

Uplink Power Control for MIMO-OFDMA Cellular Systems

Rongzhen Yang1 and Hujun Yin2   

  1. 1. Intel China Corp., Shanghai 200241, P.R. China;
    2. Intel Corp., 2200 Mission College Blvd, CA 95054-1549, U.S.A.
  • Online:2011-12-25 Published:2011-12-25
  • About author:Rongzhen Yang (rongzhen.yang@intel.com) received his B.S. and M.S.degrees in electrical engineering from Shanghai Jiaotong University in 1997 and 2000. He was a software engineer at Intel's China Software Lab from 2000 to 2002, a researcher at Intel Research from 2003 to 2004, and a wireless security architect at Intel APAC Wireless Security from 2005 to 2006. He is currently a system engineer of advanced wireless technology at Intel Corporation. Rangzhen Yang’s research interests include technology development for advanced wireless standards in personal, local, and wide area wireless networks. He has written more than 10 journal and conference articles and has more than 40 patents.

    Hujun Yin (hujin.yin@intel.com) received his B.S. and an M.S. degrees from Shanghai Jiaotong University in 1995 and 1998. He received his Ph.D. in electrical engineering from the University of Washington in 2001. From 2001 to 2002, he was a senior researcher at AT&T Research, where he focused on wireless network management and optimization research. From 2002 to 2004, he was a senior wireless architect at ViVATO, where he was responsible for smart antenna enhanced 802.11 WLAN network solutions. Dr. Yin is currently a principal engineer and director of advanced wireless technology at Intel Corporation. He leads technology development for advanced wireless standards in personal, local, and wide area wireless networks. Dr.Yin has more than 20 journal and conference articles and has over 50 patents.

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Abstract: In this paper, we propose a novel uplink power control algorithm, SMST, for multiple-input multiple-output orthogonal frequency-division multiple access (MIMO-OFDMA).We perform an extensive system-level simulation to compare different uplink power control algorithms, including the FPC adopted in 3GPP LTE and LTE-Advanced. Simulations show that SMST adopted in IEEE 802.16m outperforms other algorithms in terms of spectral efficiency, cell-edge performance, interference control, and trade-off control between sector-accumulated throughput and cell-edge user throughput. The SMST performance gain over FPC can be more than 40%.

Key words: uplink power control, inter-cell interference, OFDMA, MIMO