Opportunistic Interference Alignment by Receiver Selection in a K-User 1x3 SIMO Interference Channel

@article{Lee2011OpportunisticIA,
  title={Opportunistic Interference Alignment by Receiver Selection in a K-User 1x3 SIMO Interference Channel},
  author={Jeong Hoon Lee and Wan Choi},
  journal={2011 IEEE Global Telecommunications Conference - GLOBECOM 2011},
  year={2011},
  pages={1-5}
}
In this paper, we show that opportunistic interference alignment (OIA) by receiver selection achieves a total K degrees of freedom (DoF) in a K-user 1 ¡A 3 single-input multiple-output (SIMO) interference channel (IC) when the number of receive antennas is three (N_R=3) at each receiver. The concept of OIA is geometrically interpreted on the complex unit sphere when the number of interferers is larger than N_R, i.e., K ¡Y 4. We prove that OIA achieves DoF of one if the number of receivers… CONTINUE READING

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