Alternate MIMO AF Relaying Networks With Interference Alignment: Spectral Efficient Protocol and Linear Filter Design

Author

Ki-Hong Park ; Alouini, Mohamed-Slim

Author_Institution

Comput., Electr., & Math. Sci. & Eng. (CEMSE) Div, King Abdullah Univ. of Sci. & Technol., Thuwal, Saudi Arabia

Volume

62

Issue

2

fYear

2013

fDate

Feb. 2013

Firstpage

914

Lastpage

920

Abstract

In this paper, we study a two-hop relaying network consisting of one source, one destination, and three amplify-and-forward (AF) relays with multiple antennas. To compensate for the capacity prelog factor loss of 1/2 due to the half-duplex relaying, alternate transmission is performed among three relays, and the inter-relay interference due to the alternate relaying is aligned to make additional degrees of freedom. In addition, suboptimal linear filter designs at the nodes are proposed to maximize the achievable sum rate for different fading scenarios when the destination utilizes a minimum mean-square error filter.

Keywords

MIMO communication; antenna arrays; protocols; radiofrequency interference; alternate MIMO AF relaying networks; amplify-and-forward relays; capacity prelog factor loss; fading scenarios; half-duplex relaying; interference alignment; linear filter design; minimum mean-square error filter; multiple antennas; spectral efficient protocol; suboptimal linear filter designs; two-hop relaying network; Fading; Interference; Iterative methods; Optimization; Protocols; Relays; Vectors; Alternate transmission; amplify-and-forward (AF) relaying; interference alignment (IA); linear filter design;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/TVT.2012.2227860

Filename

6353998