Page 25 - Kaleidoscope Academic Conference Proceedings 2024

MEETING IMT-2030 PERFORMANCE TARGETS: THE POTENTIAL OF OTFDM
WAVEFORM AND STRUCTURAL MIMO TECHNOLOGIES

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Spandan Bisoyi , Muralimohan P. , Koteswara Rao G. , Smriti Kumari , Harish Kumar D. ,
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Sreejith T. V. , Sibgath Ali , Pavan Reddy M. , SaiDhiraj Amuru , and Kiran Kuchi
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1 Department of Electrical Engineering, Indian Institute of Technology Hyderabad
3 Department of Electrical Engineering, Indian Institute of Technology Bhilai
2 WiSig Networks Pvt. Ltd, Hyderabad
ABSTRACT This includes enhancement and evolution of existing IMT
and procedures to facilitate interworking with other networks.
This paper presents a range of candidate technologies that The recommendation highlighted several goals that IMT-
could potentially meet the demanding requirements set by 2030 aims to achieve are tabulated in Table 1. Further, Table
IMT-2030. Among these, two of the key technologies are 2 summarizes the applications and services enabled by IMT-
explored in detail: Orthogonal Time Frequency Division 2030.
Multiplexing (OTFDM) waveform and Structural MIMO (S-
MIMO). OTFDM is proposed as a candidate for 6G mobile
communication, addressing the limitations of traditional
OFDM waveform. It enables simultaneous transmission of
reference signals (RS) and data with low peak-to-average-
power ratio (PAPR), high power efficiency, and reduced
overhead. The benefits, technical details, simulation results,
and potential applications of OTFDM are discussed. S-
MIMO is introduced as a revolutionary approach to enhance
network capacity by implementing highly directional beams
and structural arrangements of multiple antenna panels,
enabling 360-degree coverage in both azimuth and elevation.
This technology addresses the shortcomings of conventional
5G MIMO systems and offers significant capacity
improvements. Experimental results and various structural
arrangements are discussed in this paper. The integration of
OTFDM and S-MIMO technologies demonstrates the Table 1 – Summary of goals IMT 2030 aims to achieve.
potential to meet the diverse requirements of future wireless
networks, including ultra-low latency, improved energy
efficiency, and robust support for high mobility and high
data rates.

Keywords – Orthogonal Time Frequency Division
Multiplexing (OTFDM), structural MIMO (S-MIMO).

1. INTRODUCTION

The ITU WP 5D recommendation describes the
framework and overall objectives for the development of the
terrestrial component of International Mobile
Telecommunications (IMT) for 2030 and beyond (IMT-2030)
[1]. IMT-2030 (a.k.a. 6G) aims to better serve the needs of
the networked society in both developed and developing
countries. The framework includes a broad variety of
capabilities associated with envisaged usage scenarios and
addresses the objectives for the development of IMT-2030. Table 2 – IMT-2030 Applications.

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