Downlink Cooperative Wireless Spatial Multiplexing System

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概要

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• We investigate and propose the utilization of regenerative and non-regenerative relaying terminals in downlink cooperative MIMO communications, such as in base-station/router-relay-user transmission under different schemes. The source is equipped with multiple antennas, while the relays and destination are single-antenna terminals. From the source to the relays, symbols are transmitted using MIMO spatial-multiplexing technique. Depending on the type of relaying scheme, the relays either fully decode or amplify the received signal before retransmitting it to the destination using simple TDM transmission or Alamoutis space-time coding. We show that the proposed system realizes MIMO performance in single-antenna system environment, and performance-wise it is superior to existing transmission schemes, especially in low-SNR conditions. Furthermore, the proposed system is shown to give a diversity order of N - M + 1, similar to that of MIMO V-BLAST system.

• （社）電子情報通信学会の論文

著者

• MORIKAWA Hiroyuki

  Department of Frontier Infomatics, the University of Tokyo

• Darmawan Andreas

  Univ. Of Tokyo Tokyo Jpn

• DARMAWAN Andreas

  Department of Electrical Engineering, The University of Tokyo

関連論文

• A Step-by-Step Implementation Method of the Bit-Serial Reed-Solomon Encoder(Coding Theory)
• Downlink Cooperative Wireless Spatial Multiplexing System
• B-21-26 Downlink Transmission in Cooperative Wireless MIMO System
• Downlink Cooperative Wireless Spatial Multiplexing System
• B-5-16 Cooperative Diversity using Soft Forwarding and Distributed Decoding
• B-5-17 LLR-based Ordering in Amplify-and-Forward Cooperative Spatial Multiplexing

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