Some observations on limited feedback for multiaccess channels

Most information-theoretic analyses of communication systems with feedback assume perfect output feedback. For multiaccess channels, this feedback can enable cooperation between users. However, as shown by a simple example, the rate required by the feedback link may exceed the capacity gains in the forward link. It is therefore of interest to look at systems where the feedback is rate-limited. For the compound multiaccess channel zero-rate feedback can tune the communication system to the realized channel, but for discrete memoryless channel the capacity region under zero-rate feedback is the same as that without feedback.


Published in:
2009 Ieee International Symposium On Information Theory, Vols 1- 4, 394-397
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


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)