The Solution for Cooperative Beamforming Design in MIMO Multi-way Relay Networks

• Yong Wang,
• Hao Wu,
• Liyang Tang,
• Hui Li,

Vol. 9, No. 3, March 30, 2015
10.3837/tiis.2015.03.007, Download Paper (Free):

• Network coding
• signal space alignment
• Degrees of Freedom
• multi-way relay

Abstract

In this paper, we study the design of network coding for the generalized transmit scheme in multiple input multiple output Y channel, where K users wish to exchange specified and shared information with each other within two slots. Signal space alignment at each user and the relay is carefully constructed to ensure that the signals from the same user pair are grouped together. The cross-pair interference can be canceled during both multiple accessing channel phase and broadcasting channel phase. The proposed signal processing scheme achieves the defrees of freedom of () with fewer user antennas.

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