Title :
An Analysis of Two-Way Multi-Node Relay Systems
Author :
Chen, Zhiyong ; Liu, Hui ; Wang, Wenbo
Author_Institution :
Dept. of Electr. Eng., Univ. of Washington, Seattle, WA, USA
Abstract :
We consider a two-way relay system where two sources exchange information with the assistance of multiple, non-cooperative, relay nodes. Specifically, we propose a capacity upper bound for the two-way relay channel and derive the achievable regions for different relay strategies, such as the amplify-and-forward (AF), the decode-and-forward (DF) and the compress-and-forward (CF). Furthermore, the upper bound and the achievable regions for the additive white Gaussian noise channel are presented. Numerical results are provided to illustrate how the capacity varies with respect to the number of relay nodes, the distance between the relays and the sources, and the transmission powers.
Keywords :
AWGN channels; amplify and forward communication; decode and forward communication; telecommunication network routing; additive white Gaussian noise channel; amplify-and-forward; capacity upper bound; compress-and-forward; decode-and-forward; information exchange; multinode relay systems; two-way relay system; Array signal processing; Correlation; Encoding; IEEE Communications Society; Peer to peer computing; Relays; Upper bound;
Conference_Titel :
Global Telecommunications Conference (GLOBECOM 2010), 2010 IEEE
Conference_Location :
Miami, FL
Print_ISBN :
978-1-4244-5636-9
Electronic_ISBN :
1930-529X
DOI :
10.1109/GLOCOM.2010.5683504