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›› 2013, Vol. 30 ›› Issue (3): 425-431.DOI: 10.7523/j.issn.1002-1175.2013.03.022

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Multicast-aware linear transceiver-aided multi-stream multicast scheme in multiple regenerative relay systems

WANG Chong-Fa, QIU Ling   

  1. Personal Communication Network & Spread Spectrum Lab, University of Science and Technology of China, Hefei 230027, China
  • Received:2012-04-11 Revised:2012-06-07 Online:2013-05-15

Abstract:

For multiple regenerative relay systems, we propose a multicast-aware linear transceiver-aided multi-stream multicast scheme to improve the system capacity when it is limited by relay-to-destination link. In this scheme, joint transmission of data-sharing relays is employed to improve the weak relay-to-destination link. To efficiently distribute the needed sharing data to relays, multi-stream multicasting is performed in source-to-relay link and we design a multicast-aware linear transceiver which intelligently collects same streams and separates different streams. The simulation results show that system capacity is effectively enhanced, especially for weak relay-to-destination link.

Key words: multiple relays, multi-stream, multicast, transceiver design

CLC Number: