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A single cell scenario with different multi-antenna nodes, i.e., a base station and several mobile stations, is considered. An intermediate multi-antenna relay station is used to support the bidirectional communications. In such a scenario, the required data rates for up - and downlink are typically different which is considered by introducing asymmetric rate requirements. Non-regenerative two-way...
This paper considers the two-hop relaying case where two nodes S1 and S2 in a wireless network can communicate with each other via an intermediate relay station (RS). Assuming that an RS can only receive and transmit on orthogonal channel resources, the required resources in oneway amplify-and-forward relaying are doubled compared to a direct communication between two nodes. Recently, two-way relaying...
This paper considers the two-hop relaying case where two nodes S1 and S2 in a wireless network can communicate with each other via an intermediate relay station (RS) which is equipped with multiple antennas and cannot transmit and receive simultaneously on the same channel resources. In oneway relaying, four orthogonal channel resources are required for the transmissions from S1 to S2 and from S2...
A novel scheme for two-hop relaying defined as space division duplex (SDD) relaying is proposed. In SDD relaying, multiple antenna beamforming techniques are applied at the intermediate relay station (RS) in order to separate downlink and uplink signals of a bi-directional two-hop communication between two nodes, namely, S1 and S2. For conventional amplify-and-forward two-hop relaying, there appears...
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