Algorithms for the MIMO Single Relay Channel

Author

Kang, Taehyuk ; Rodoplu, Volkan

Author_Institution

Dept. of Electr. & Comput. Eng., California Santa Barbara Univ., CA

Volume

6

Issue

5

fYear

2007

fDate

5/1/2007 12:00:00 AM

Firstpage

1596

Lastpage

1600

Abstract

The MIMO single relay channel consists of a transmitter, a relay, and a receiver, all equipped with multiple antennas, located in an environment with distance-dependent path loss as well as scattering. We describe an optimal and a heuristic algorithm to solve the spatial energy allocation problem for the MIMO single relay channel when the scattering clusters on the direct and relay links are non-overlapping. These algorithms can be applied to existing wireless LAN systems that aim to increase their performance via relays. By simulations, we compare the performances of joint and uniform energy allocations across the spatial channels, and the performances of a direct transmission system and a system that utilizes the relay node

Keywords

MIMO communication; antenna arrays; electromagnetic wave scattering; radio links; wireless channels; MIMO single relay channel; distance-dependent path loss; heuristic algorithm; multiple antennas; receiver; relay links; scattering; spatial channels; spatial energy allocation problem; transmitter; wireless LAN systems; Clustering algorithms; Heuristic algorithms; MIMO; Propagation losses; Protective relaying; Receiving antennas; Relays; Scattering; Transmitters; Transmitting antennas;

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2007.360356

Filename

4202160