IEIE Transactions on Smart Processing and Computing

The Institute of Electronics and Information Engineers (대한전자공학회)
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Energy-Efficient Opportunistic Interference Alignment With MMSE Receiver

  • Shin, Won-Yong (Department of Computer Science and Engineering, Dankook University) ;
  • Yoon, Jangho (Department of Electrical Engineering, KAIST)
  • Received : 2013.11.20
  • Accepted : 2014.02.12
  • Published : 2014.04.30
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Abstract

This paper introduces a refined opportunistic interference alignment (OIA) technique that uses minimum mean square error (MMSE) detection at the receivers in multiple-input multiple-output multi-cell uplink networks. In the OIA scheme under consideration, each user performs the optimal transmit beamforming and power control to minimize the level of interference generated to the other-cell base stations, as in the conventional energy-efficient OIA. The result showed that owing to the enhanced receiver structure, the OIA scheme shows much higher sum-rates than those of the conventional OIA with zero-forcing detection for all signal-to-noise ratio regions.

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References

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