Protocols and Performance Limits for Half-Duplex Relay Networks
Rost, Peter ; Fettweis, Gerhard
arXiv, 0907.2309 / Harvested from arXiv
Text on arXiv
In this paper, protocols for the half-duplex relay channel are introduced and performance limits are analyzed. Relay nodes underly an orthogonality constraint, which prohibits simultaneous receiving and transmitting on the same time-frequency resource. Based upon this practical consideration, different protocols are discussed and evaluated using a Gaussian system model. For the considered scenarios compress-and-forward based protocols dominate for a wide range of parameters decode-and-forward protocols. In this paper, a protocol with one compress-and-forward and one decode-and-forward based relay is introduced. Just as the cut-set bound, which operates in a mode where relays transmit alternately, both relays support each other. Furthermore, it is shown that in practical systems a random channel access provides only marginal performance gains if any.
Publié le : 2009-07-14
Classification:  Computer Science - Information Theory,  E.4 
@article{0907.2309,
     author = {Rost, Peter and Fettweis, Gerhard},
     title = {Protocols and Performance Limits for Half-Duplex Relay Networks},
     journal = {arXiv},
     volume = {2009},
     number = {0},
     year = {2009},
     language = {en},
     url = {http://dml.mathdoc.fr/item/0907.2309}
}

Rost, Peter; Fettweis, Gerhard. Protocols and Performance Limits for Half-Duplex Relay Networks. arXiv, Tome 2009 (2009) no. 0, . http://gdmltest.u-ga.fr/item/0907.2309/