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A differential cooperative transmission scheme with low rate feedback

Paredes, J. M ; Sharif University of Technology | 2009

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  1. Type of Document: Article
  2. DOI: 10.1109/ICASSP.2009.4960160
  3. Publisher: 2009
  4. Abstract:
  5. The use of cooperative schemes in wireless networks has recently attracted much attention in scenarios where application of multipleantenna systems is impractical. In such scenarios, the requirement of having full channel state information (CSI) at the receiver side can be relaxed by using differential distributed (DD) transmission schemes. However, in the DD schemes proposed so far, the decoding complexity as well as the delay requirements increase with the number of relays. In this paper, we propose a low-rate feedback-based DD approach (with one-bit feedback per relay) that enjoys full diversity, linear maximum likelihood (ML) decoding complexity, and unrestrictive delay requirements. In addition, the proposed feedback scheme does not require any CSI knowledge at the receiver, and its implementation is simple. Computer simulations demonstrate substantial performance improvements of the proposed techniques as compared to several popular cooperative transmission schemes. ©2009 IEEE
  6. Keywords:
  7. Wireless relay networks ; Cooperative communications ; Cooperative schemes ; Cooperative transmission ; Decoding complexity ; Differential distributed transmission ; Feedback scheme ; Full diversity ; Low-rate feedback ; Maximum-likelihood decoding ; Multiple antenna systems ; Performance improvements ; Rate feedback ; Transmission schemes ; Wireless relay networks ; Acoustics ; Channel state information ; Computer simulation ; Decoding ; Maximum likelihood ; Relay control systems ; Signal processing ; Wireless sensor networks ; Transmissions
  8. Source: 2009 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2009, Taipei, 19 April 2009 through 24 April 2009 ; 2009 , Pages 2621-2624 ; 15206149 (ISSN); 9781424423545 (ISBN)
  9. URL: https://ieeexplore.ieee.org/abstract/document/4960160