Functional Forwarding of Channel State Information

In large relay networks, the assumption of full and perfect channel knowledge at the destination is optimistic in practice. The fading coefficients are typically measured at the relays but not directly known at the destination. Traditionally, each fading coefficient is individually forwarded to the destination. However, it is often sufficient for the decoder to know only a function of the various channel states rather than the full information. We develop a general framework for forwarding channel state information in relay systems with load channel knowledge. We apply our framework to several networks and find that functional forwarding of channel state information can be attained much more efficiently than full forwarding.


Published in:
2009 Ieee International Symposium On Information Theory, Vols 1- 4, 1184-1188
Presented at:
IEEE International Symposium on Information Theory (ISIT 2009), Seoul, SOUTH KOREA, Jun 28-Jul 03, 2009
Year:
2009
Publisher:
Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa
ISBN:
978-1-4244-4312-3
Keywords:
Laboratories:




 Record created 2011-10-17, last modified 2018-09-13


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