Positioning based information technique in cooperative MIMO-OFDM systems

TL;DR

This paper proposes a positioning-based relay selection method combined with a double layer distributed space-time block code in cooperative MIMO-OFDM systems, enhancing efficiency and performance over random selection.

Contribution

It introduces a novel relay selection technique using positioning information and applies an efficient DLSTBC scheme in cooperative MIMO-OFDM systems.

Findings

Positioning-based relay selection outperforms random selection.

The proposed DLSTBC scheme is highly efficient across different power levels.

Enhanced system performance demonstrated through simulations.

Abstract

Future Communication networks are tending towards a diverse wireless networking world where the positioning information (PI) could be helpful in different techniques like the dynamic resource allocation. On the other hand, the PI could be widely used for cooperative techniques in the relay and/or routing selection process. In this paper, we propose to use the PI in the selection of the relays and then to apply an efficient double layer distributed space time block code (DLSTBC) scheme between the different relays. Using the amplify and forward (AF) technique, we show that the proposed code is very efficient whatever the transmitted power is. Moreover, we show that the relay selection process based on PI yields very powerful results when compared to the random relay selection (RS) process