نتایج جستجو برای: two way relay

تعداد نتایج: 2769793  

2010
Nicholas Heng-Loong Wong Sumei Sun Chin Keong Ho

We study analog network-coded (ANC) orthogonal frequency division multiplexing (OFDM) in two-way relay channels and propose three linear analog network coding (LANC) schemes. Motivated by the fact that higher frequency diversity has been made available in the frequency-selective ANC two-way relay channels, the proposed LANC is applied to the frequencydomain OFDM signals with unitary matrices. T...

2011
Guan Gui Zhangxin Chen Qingwei Meng Qun Wan Fumiyuki Adachi

Relay network was introduced to realize high-data rate transmission and high capacity with limited transmit power. However, channel state information (CSI) is needed due to the requirement from coherent data detection and the self-data removal at terminals in the two-way relay networks (TWRN). Traditional linear probing techniques are able to acquire the accurate CSI by using enough training se...

Journal: :IEEE Transactions on Communications 2021

In this paper, we consider a reconfigurable intelligent surface (RIS)-assisted two-way relay network, in which two users exchange information through the base station (BS) with help of an RIS. By jointly designing phase shifts at RIS and beamforming matrix BS, our objective is to maximize minimum signal-to-noise ratio (SNR) users, under transmit power constraint BS. We first single-antenna BS c...

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