240 citations · 2.2k across the 111 of their papers we have counts for
18 papers · 1 filter
Massive Wireless Energy Transfer: Enabling Sustainable IoT Towards 6G Era
Onel L. Alcaraz López, Hirley Alves, Richard Demo Souza +3
Recent advances on wireless energy transfer (WET) make it a promising solution for powering future Internet of Things (IoT) devices enabled by the upcoming sixth generation (6G) er…
Low Latency Decoder for Short Blocklength Polar Codes
Heshani Gamage, Vismika Ranasinghe, Nandana Rajatheva +1
Polar codes have been gaining a lot of interest due to it being the first coding scheme to provably achieve the symmetric capacity of a binary memoryless channel with an explicit c…
Partially Permuted Multi-Trellis Belief Propagation for Polar Codes
Vismika Ranasinghe, Nandana Rajatheva, Matti Latva-aho
Belief propagation (BP) is an iterative decoding algorithm for polar codes which can be parallelized effectively to achieve higher throughput. However, because of the presence of e…
Low Complexity Autoencoder based End-to-End Learning of Coded Communications Systems
Nuwanthika Rajapaksha, Nandana Rajatheva, Matti Latva-aho
End-to-end learning of a communications system using the deep learning-based autoencoder concept has drawn interest in recent research due to its simplicity, flexibility and its po…
High Reliability Downlink MU-MIMO: New OSTBC Approach and Superposition Modulated Side Information
Nora Boulaioune, Nandana Rajatheva, Matti Latva-aho
In this paper, a proposal to improve the reliability of a downlink multiuser (MU) MIMO transmission scheme is investigated with the use of a new approach in orthogonal space-time b…
An Initial Access Optimization Algorithm for millimeter Wave 5G NR Networks
A. Indika Perera, K. B. Shashika Manosha, Nandana Rajatheva +1
The millimeter wave (mmWave) communication uses directional antennas. Hence, achieving fine alignment of transmit and receive beams at the initial access phase is quite challenging…
Block Error Performance of NOMA with HARQ-CC in Finite Blocklength
Dileepa Marasinghe, Nandana Rajatheva, Matti Latva-aho
This paper investigates the performance of a two-user downlink non-orthogonal multiple access (NOMA) system using hybrid automatic repeat request with chase combining (HARQ-CC) in…
Admission Control in 5G Networks for the Coexistence of eMBB-URLLC Users
Nipuni Uthpala Ginige, K. B. Shashika Manosha, Nandana Rajatheva +1
In this paper, we consider the problem of admission control in 5G networks where enhanced mobile broadband (eMBB) users and ultra-reliable low-latency communication (URLLC) users a…
Distributed Rate Control in Downlink NOMA Networks with Reliability Constraints
Onel L. A. López, Hirley Alves, Matti Latva-aho
Non-orthogonal multiple access (NOMA) has been identified as a promising technology for future wireless systems due to its performance gains in spectral efficiency when compared to…
An Alternating Algorithm for Uplink Max-Min SINR in Cell-Free Massive MIMO with Local-MMSE Receiver
W. A. Chamalee Wickrama Arachchi, K. B. Shashika Manosha, N. Rajatheva +1
The problem of max-min signal-to-interference plus noise ratio (SINR) for uplink transmission of cell-free massive multiple-input multiple-output (MIMO) system is considered. We as…
Achieving Ultra-Reliable Communication via CRAN-Enabled Diversity Schemes
Binod Kharel, Onel L. Alcaraz López, Hirley Alves +1
Internet of things is in progress to build a smart society, and wireless networks are critical enablers for many of its use cases. In this paper, we present a multi-coordinated tra…
Fixed Rate Statistical QoS Provisioning for Markovian Sources in Machine Type Communication
Fahad Qasmi, Mohammad Shehab, Hirley Alves +1
In this paper, we study the trade-off between reliability and latency in machine type communication (MTC), which consists of single transmitter and receiver in the presence of Rayl…
Hybrid Resource Scheduling for Aggregation in Massive Machine-type Communication Networks
Onel L. Alcaraz López, Hirley Alves, Pedro H. J. Nardelli +1
Data aggregation is a promising approach to enable massive machine-type communication (mMTC). Here, we first characterize the aggregation phase where a massive number of machine-ty…
Network Slicing for Vehicular Communication
Hamza Khan, Petri Luoto, Sumudu Samarakoon +2
Ultra-reliable vehicle-to-everything (V2X) communication is essential for enabling the next generation of intelligent vehicles. V2X communication is a growing area of communication…
Joint Power Control and Rate Allocation enabling Ultra-Reliability and Energy Efficiency in SIMO Wireless Networks
Onel L. Alcaraz López, Hirley Alves, Matti Latva-aho
Coming cellular systems are envisioned to open up to new services with stringent reliability and energy efficiency requirements. In this paper we focus on the joint power control a…
Six Key Enablers for Machine Type Communication in 6G
Nurul Huda Mahmood, Hirley Alves, Onel Alcaraz López +3
While 5G is being rolled out in different parts of the globe, few research groups around the world such as the Finnish 6G Flagship program have already started posing the q…
In-Band Pilot Overhead in Ultra-Reliable Low Latency Decode and Forward Relaying
Parisa Nouri, Hirley Alves, Richard Demo Souza +1
In URLLC the performance of short message communications highly depends on the training sequence length due to the stringent latency and reliability requirements. In this paper, we…
Performance of Non-orthogonal Multiple Access under Finite Blocklength
Endrit Dosit, Mohammad Shehab, Hirley Alves +1
In this paper, we present a finite-block-length comparison between the orthogonal multiple access (OMA) scheme and the non-orthogonal multiple access (NOMA) for the uplink channel.…