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On the Achievability of Interference Alignment for Three-Cell Constant Cellular Interfering Networks

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3 Author(s)
Yanjun Ma ; School of Communication and Information Engineering, Xi'an University of Science and Technology, Xi'an 710054, China ; Jiandong Li ; Rui Chen

For a three-cell constant cellular interfering network, a new property of alignment is identified, i.e., an interference alignment (IA) solution obtained in a user-cooperation scenario can also be applied to a non-cooperation environment. By using this property, an algorithm is proposed by jointly designing transmit and receive beamforming matrices. Analysis and simulation results show that more degrees of freedom (DoF) can be achieved compared with conventional schemes in most cases.

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IEEE Communications Letters  (Volume:16 ,  Issue: 9 )