Achievable Rates for the Restricted Half-Duplex Two-Way Relay Channel

Author

Schnurr, Clemens ; Oechtering, Tobias J. ; Stanczak, Slawomir

Author_Institution

Fraunhofer German-Sino Lab. for Mobile Commun., Berlin

fYear

2007

fDate

4-7 Nov. 2007

Firstpage

1468

Lastpage

1472

Abstract

The main result of the paper is a new achievable rate region for the two-phase two-way relay channel with half duplex nodes. The new region is obtained using a compress- and-forward like protocol. Even though all information passes the relay, there are channels where decoding at the relay is suboptimal. The proposed protocol establishes a virtual two-way channel by forwarding a good enough version of the MAC output at the relay to both the receivers. In effect, the side information at the receivers can be used for the decoding of the transmission in the first phase.

Keywords

multi-access systems; protocols; receivers; relays; telecommunication channels; MAC output; compress-and-forward like protocol; half duplex nodes; receivers; relay channel; Bidirectional control; Broadcasting; Channel capacity; Decoding; Media Access Protocol; Mobile communication; Performance gain; Probability distribution; Random variables; Relays;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2007. ACSSC 2007. Conference Record of the Forty-First Asilomar Conference on

Conference_Location

Pacific Grove, CA

ISSN

1058-6393

Print_ISBN

978-1-4244-2109-1

Electronic_ISBN

1058-6393

Type

conf

DOI

10.1109/ACSSC.2007.4487473

Filename

4487473