Patent
Physical layer network coding-based joint antenna selection space multiplexing method
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TL;DR: In this paper, the authors proposed a joint antenna selection space multiplexing (JASM) method, which consists of three steps: a relay selects an antenna set which participates in communication, two users which perform bidirectional communication transmit pre-coded information to the relay at the same time, and the relay performs physical layer network coding maximum likelihood detection on superimposed signals from different users to directly obtain network coding symbols.
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Abstract: The invention relates to a physical layer network coding-based joint antenna selection space multiplexing method, and belongs to the technical field of wireless communication. The method comprises the following steps that: a relay selects an antenna set which participates in communication; two users which perform bidirectional communication transmit pre-coded information to the relay at the same time; the relay performs physical layer network coding maximum likelihood detection on superimposed signals from different users to directly obtain network coding symbols; the relay broadcasts the network coding symbols back to the users; and the users decode the pre-coded information and extract the information of the other user by utilizing self-information. By the method, the frequency spectrumutilization efficiency and the energy utilization efficiency of a bidirectional delay network are improved effectively, multi-stream high-speed transmission is realized, and relay decoding complexityis reduced.
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Citations
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Hou Zhihua
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TL;DR: In this article, the authors proposed a method to divide all available frequency bands into multiple control sub frequency bands, based on information of channel quality fed back from each user terminal, base station assigns control information of each user terminals to each sub frequency band; unitive modulating and coding mode is adopted to carry out modulating/coding control information for all user terminals; multiplexing control channel and data channel of user terminal in time domain, and transmission of control channel transferred before the data channel.
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Patent
Antenna selecting method for multi-user MIMO pre-coding and apparatus thereof
Yang Guo
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TL;DR: In this paper, a pre-coding antenna selection method for multi-user multiple input and multiple output (MIMO) based on Block Diagonalizc (BD) calculation is proposed.
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On the Diversity Order of Spatial Multiplexing Systems With Transmit Antenna Selection: A Geometrical Approach
TL;DR: A geometrical framework is proposed to theoretically analyze the diversity order achieved by transmit antenna selection for separately encoded spatial multiplexing systems with linear and decision-feedback receivers.
Error Performance Analysis of BPSK Modulation in Physical-Layer Network-Coded Bidirectional Relay Networks
MinChul Ju,Il-Min Kim +1 more
TL;DR: This work analyzes the error performance of the physical-layer network coding (PNC) protocol without channel coding in bidirectional relay networks for binary phase shift keying over Rayleigh fading channels and derives tight upper and lower bounds in closed form for the average symbol error probability of the MAC at the relay.