This letter considers the relay-assisted multiuser downlink transmission with limited
feedback in a wireless cellular network. Taking into account the channel quantization errors …

We consider a multiple-input-multiple-output (MIMO) relaying broadcast channel in downlink
cellular networks, where the base station and the relay stations are both equipped with …

Multi-antenna relaying has emerged as a promising technology to enhance the system
performance in cellular networks. However, when precoding techniques are utilized to …

In this paper, we propose a robust minimum mean square error (MMSE)-based
beamforming technique for multiantenna relay broadcast channels, where a multiantenna …

The relay technology is effective in extending radio coverage and improving the
performance of cell edge users. In multi-antenna relay channels, good knowledge of the …

This paper studies the two-hop relay broadcast channel (BC) for a relay-assisted wireless
cellular network where the multiuser independent downlink signals from the base station …

For the multiuser multiple-input multiple-output downlink channel, users feedback their
channel state information to help base station schedule users and improve system sum rate …

In this letter, we analyze the performance of limited feedback beamforming in a distributed
antenna system. We propose a novel codebook design scheme to maximize a lower bound …

In multi-pair two-way relay networks, the control over inter-pair-interference is a challenging
problem. When mobile stations (MSs) cooperate fully, to achieve the sum capacity of …

This paper presents the design of a robust beamforming scheme for a two-way relay
network, composed of one multi-antenna relay and two single-antenna terminals, with the …