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| Distributed Power Control in MIMO Cellular System |
| Zhao Kun; Qiu Ling; Zhu Jin-kang |
| PCN&SS, Univ. of Sci. and Tech. of China, Hefei 230027, China |
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Abstract In the design of cellular radio systems, power control methods based on signal-to-interference ratio (SIR) measurement have been used widely. This paper proposes distributed power control (DPC) methods based on SIR measurement in Multiple-Input Multiple-Output (MIMO) antenna cellular systems. The methods control the transmitter power of mobile stations or base stations with one of the following two objectives: (1) to minimize the averaged SIR outage probability over all base stations or mobile stations and (2) to minimize the averaged transmitter power while satisfying the specified SIR requirements for all links. Numerical study shows that the DPC methods proposed in this paper can effectively lower SIR outage probability and transmitter power at low computation complexity.
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Received: 07 June 2004
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2005, Vol. 27 
