Postdoctoral Fellow
Khalifa University · Abu Dhabi, UAEWireless and emerging network systems, including resilient grant-free transmissions.
Postdoctoral fellowWireless communications
I NyomanAprazRamatryana.
Postdoctoral Fellow / IEEE Senior Member01
FocusMassive access and resilient wireless systems
Portrait source ↗Massive Random AccessRSMA / NOMANextG RAN / Cell-Free MIMOResilient Grant-Free Access
01Profile
Postdoctoral fellow / lecturer / IEEE Senior Member
Making crowded networks work better.
Dr. Ramatryana is a Postdoctoral Fellow at Khalifa University in Abu Dhabi and a Lecturer in Electrical Engineering at Universitas Nahdlatul Ulama Yogyakarta.
His work asks how future radio networks can support massive, heterogeneous traffic without giving up throughput, reliability, energy efficiency, or fair access.
His research spans wireless communications, signal processing, artificial intelligence, NextG random and multiple access, and NextG radio access networks. He received his Ph.D. in Wireless Communications from Kumoh National Institute of Technology in 2023 and became an IEEE Senior Member in 2025.
Lecturer, Electrical Engineering
Universitas Nahdlatul Ulama Yogyakarta · IndonesiaTeaching and research across wireless communications, signal processing, and intelligent systems.
Postdoctoral Researcher
Dublin City University · IrelandNOMA-enabled radio-over-fiber fronthaul and resource allocation for cell-free massive MIMO.
Postdoctoral Researcher
FAU Erlangen–Nürnberg · GermanyDigital communications research, teaching support, and student supervision at the Institute for Digital Communications.
01Model
02Simulate
03Validate
02Research atlas
Where the work connects
Signals, access, intelligence.
From waveform and access-protocol design to fronthaul and network-wide resource allocation, the work connects physical-layer ideas with deployable system goals.
Original editorial illustration / AI-generated
Massive Random Access for Future IoT
Cross-layer random-access design for dense machine-type networks, including adaptive traffic load, prioritized access, and throughput analysis.
- Massive IoT
- Random access
- Traffic-load adaptation
RSMA, NOMA & 6G Multiple Access
Rate-splitting and non-orthogonal multiple-access methods for overloaded uplinks, spanning slotted ALOHA, coded access, and vortex-wave communications.
- RSMA
- NOMA
- Slotted ALOHA
NextG RAN, Cell-Free MIMO & RoF
Next-generation radio access and radio-over-fiber fronthaul for distributed cell-free massive MIMO, including low-complexity radio and optical resource allocation.
- NextG RAN
- CF mMIMO
- Radio-over-fiber
Wireless Signal & Image Processing
Sparse reconstruction and compressive sensing for communications and medical imaging, alongside modulation and signal-space designs for efficient transmission.
- Compressive sensing
- Medical imaging
- Signal processing
Secure & Resilient Grant-Free Access
Jamming-resilient grant-free transmission and secure IoT connectivity for networks that must remain dependable under contention and interference.
- Grant-free access
- Anti-jamming
- Secure IoT
Original editorial illustration / AI-generated
03Portraits
One real portrait / two visual interpretations
A research practice, pictured.
The official photograph establishes identity. The two illustrated scenes imagine the process of working with signals and ideas; they are editorial artwork, not documentary photography.
Photograph from the FAU Institute for Digital Communications profile.
AI-generated illustration based on the verified portrait.
AI-generated illustration based on the verified portrait.
04Selected work
A short reading list
Recent research in print.
IEEE Wireless Communications Letters
On the Throughput of RSMA-ALOHA for Vortex Wave Communications
IEEE Transactions on Wireless Communications
Enhanced Polarized Spatial Modulation With Optimal Power Allocation
IEEE Communications Letters
Uplink RSMA-Assisted Slotted ALOHA With Adaptive Traffic Load for Massive IoT
IEEE Wireless Communications Letters
On the Throughput Bounds of Uplink RSMA-Assisted Slotted ALOHA
IEEE Networking Letters
Slotted ALOHA With Relay Control Scheme for Air-to-Ground Communications
IEEE Transactions on Vehicular Technology
NOMA-ALOHA With Prioritized Burst Repetition for Machine-Type Communications
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