Ergodic Capacity Analysis of MIMO Relay Network Over Rayleigh-Rician Channels

Author

Siyuan Zhou ; Alfano, Giuseppa ; Nordio, Alessandro ; Chiasserini, Carla-Fabiana

Author_Institution

Dipt. di Elettron. & Telecomun., Politec. di Torino, Turin, Italy

Volume

19

Issue

4

fYear

2015

fDate

Apr-15

Firstpage

601

Lastpage

604

Abstract

We present an analytical characterization of the ergodic capacity for an amplify-and-forward (AF) multiple-input multiple-output (MIMO) relay network over asymmetric channels. In the two-hop system that we consider, the source-relay and relay-destination channels undergo Rayleigh and Rician fading, respectively. Considering arbitrary-rank means for the relay-destination channel, we first investigate the marginal distribution of an unordered eigenvalue of the cascaded AF channel, and we provide an analytical expression for the ergodic capacity of the system. The closed-form expressions that we derive are computationally efficient and validated by numerical simulation. Our results also show the impact of the signal-to-noise ratio and of the Rician factor on this asymmetric relay network.

Keywords

MIMO communication; Rayleigh channels; Rician channels; amplify and forward communication; relay networks (telecommunication); MIMO relay network; Rayleigh-Rician channels; amplify-and-forward multiple-input multiple-output relay network; cascaded AF channel; closed-form expressions; ergodic capacity analysis; relay-destination channels; source-relay channels; Eigenvalues and eigenfunctions; Fading; Monte Carlo methods; Relays; Rician channels; Signal to noise ratio; Amplify-and-Forward relay; Ergodic capacity; MIMO; Rayleigh fading; Rician fading; amplify-and-forward (AF) relay; multiple-input multiple-output (MIMO); rayleigh fading;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2015.2396068

Filename

7018939