NDLI: A novel transceiver architecture in the two-way relay channel with analog and digital beamforming

Content Provider	IEEE Xplore Digital Library
Author	Shiqi Gong Chengwen Xing Zesong Fei Jingming Kuang
Copyright Year	2015
Description	Author affiliation: Sch. of Inf. & Electron., Beijing Inst. of Technol., Beijing, China (Shiqi Gong; Chengwen Xing; Zesong Fei; Jingming Kuang)
Abstract	In this paper, we propose a novel transceiver architecture at relay for multiple input, multiple output two-way relay channel (TWRC). This transceiver architecture consists of the analog beamforming in RF domain and the MMSE based digital processing at baseband, which is simplified as RF-MDP-MIMO architecture. Under the RF-MDP-MIMO architecture, the objective of this paper is to find the optimal relay transmit and receive beamformings that can achieve the boundary of the optimal capacity region with limited relay power. Specifically, by formulating the original optimization problem into two semidefinite programing (SDP) problems with rank-one constraints which can be effectively solved by the penalty function method, we can optimize relay transmit and receive beamformings alternatively. Then, the maximum achievable sum rate of TWRC can be obtained with the bisection method. Further, the achievable capacity region is realized. Numerical experiments are conducted to show that our proposed RF-MDP-MIMO architecture outperforms the RF-MIMO architecture in terms of the optimal achievable capacity region.
Starting Page	1
Ending Page	5
File Size	735606
Page Count	5
File Format	PDF
e-ISBN	9781467376877
DOI	10.1109/WCSP.2015.7341245
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-10-15
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio frequency Array signal processing MIMO Transceivers Relays Optimization Signal to noise ratio
Content Type	Text
Resource Type	Article

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