Title :
Sum rate of two-way MIMO AF relay networks with transmit/receive zero-forcing
Author :
Amarasuriya, Gayan ; Tellambura, C. ; Ardakani, Masoud
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Alberta, Edmonton, AB, Canada
Abstract :
The sum rate of multiple-input multiple-output (MIMO) amplify-and-forward (AF) two-way relay networks (TWRNs) with transmit/receive zero-forcing (ZF) is analytically studied. Specifically, the exact sum rate expressions are derived for uncorrelated and semi-correlated Rayleigh fading cases in closed-form. Moreover, the closed-form upper and lower bounds of the sum rate are derived for doubly-correlated Rayleigh fading. In particular, these sum rate bounds are tight, and consequently, serve as benchmarks providing valuable insights into practical MIMO AF TWRN system-design. All the analyses are verified by using Monte-Carlo simulations.
Keywords :
MIMO communication; Monte Carlo methods; Rayleigh channels; amplify and forward communication; radio receivers; radio transmitters; relay networks (telecommunication); Monte-Carlo simulation; TWRN; ZF; amplify-and-forward two-way relay network; closed-form lower bound expresssion; closed-form upper bound expresssion; exact sum rate expression; multiple-input multiple-output; semicorrelated Rayleigh fading channel; transmit-receive zero-forcing; two-way MIMO AF relay network; uncorrelated Rayleigh fading channel;
Conference_Titel :
Global Communications Conference (GLOBECOM), 2012 IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4673-0920-2
Electronic_ISBN :
1930-529X
DOI :
10.1109/GLOCOM.2012.6503858
