On the Pareto-Optimal Beam Structure and Design for Multi-User MIMO Interference Channels

Provided by: Institute of Electrical & Electronic Engineers
Topic: Mobility
Format: PDF
Multi-user multiple antenna interference channels have gained intensive interest from research communities in recent years because of the significance of proper interference control in current and future wireless networks. One of the break-through results in this area is interference alignment by Cadambe and Jafar, which provides an effective way to achieving maximum Degrees-of-Freedom (DoF) for MIMO interference channels. However, interference alignment is only DoF optimal, i.e., it is optimal at high Signal-to-Noise Ratio (SNR), whereas in typical cellular networks most receivers experiencing severe interference are located at cell edges and hence operate in the low or intermediate SNR regime.

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