A Multi-Service Oriented Multiple-Access Scheme For M2M Support in Future LTE

TL;DR

This paper introduces MOMA, a multi-service access scheme for LTE that efficiently supports both traditional and IoT devices through hierarchical spreading and adaptable detection, enhancing scalability and resource utilization.

Contribution

The paper presents MOMA, a novel multi-service access method that integrates IoT and cellular services with hierarchical spreading and flexible detection, improving LTE scalability.

Findings

MOMA effectively supports dense IoT device connectivity.

It enables scalable resource allocation based on QoS needs.

The scheme can be integrated into LTE with minimal protocol changes.

Abstract

We propose a novel multiple-access technique to overcome the shortcomings of the current proposals for the future releases of Long-Term Evolution (LTE). We provide a unified radio access system that efficiently and flexibly integrates both traditional cellular services and machine-to-machine (M2M) connections arising from Internet-of-Things (IoT) applications. The proposed solution, referred to as multi-service oriented multiple access (MOMA), is based on a) establishing separate classes of users using relevant criteria that go beyond the simple handheld-IoT device split, b) service-dependent hierarchical spreading of the data signals and c) a mix of multiuser and single-user detection schemes at the receiver. Signal spreading in MOMA allows to handle densely connected devices with different quality-of-service (QoS) profiles and at the same time its flexible receiver structure allows to allocate the receiver computational resources to the connections that need it most. This yields a scalable and efficient use of the available radio resources and a better service integration. While providing significant advantages for key future communications scenarios, MOMA can be incorporated into LTE with a limited impact on the protocol structure and the signaling overhead.