Uplink and Downlink Transceiver Design for OFDM with Index Modulation in Multi-user Networks

TL;DR

This paper investigates OFDM with index modulation (OFDM-IM) in multi-user networks, proposing new base station designs to mitigate inter-user interference and demonstrating superior performance over classical OFDM.

Contribution

It introduces novel base station designs for OFDM-IM in multi-user scenarios, effectively eliminating inter-user interference and enhancing network performance.

Findings

OFDM-IM outperforms classical OFDM in multi-user networks.

Proposed base station designs successfully eliminate inter-user interference.

OFDM-IM maintains high performance even in large networks.

Abstract

A new modulation scheme called OFDM with index modulation (OFDM-IM) is introduced recently. This scheme allows to transmit additional bits by mapping a part of incoming bit stream to the indices of the subcarriers. In this work, performance of OFDM-IM in multi-user networks for uplink and downlink scenario is studied. For both scenarios, novel base station designs are introduced in order to overcome the inter-user-interference (IUI). Simulation results show that OFDM-IM outperforms the classical OFDM in multi-user networks and IUI is eliminated successfully even in large networks.