784 citations · 964 across the 25 of their papers we have counts for
21 papers · 1 filter
Comparative Analysis of Sub-band Allocation Algorithms in In-body Sub-networks Supporting XR Applications
Saeed Bagherinejad, Thomas Jacobsen, Nuno K. Pratas +1
In-body subnetworks (IBS) are envisioned to support reliable wireless connectivity for emerging applications including extended reality (XR) in the human body. As the deployment of…
Towards Massive Connectivity Support for Scalable mMTC Communications in 5G networks
Carsten Bockelmann, Nuno K. Pratas, Gerhard Wunder +16
The fifth generation of cellular communication systems is foreseen to enable a multitude of new applications and use cases with very different requirements. A new 5G multiservice a…
Achieving Low Latency Two-Way Communication by Downlink and Uplink Decoupled Access
Dong Min Kim, Nuno K. Pratas, Petar Popovski
In many scenarios, low latency wireless communication assumes two-way connection, such that the node that receives information can swiftly send acknowledgment or other response. In…
An Enhanced Access Reservation Protocol with a Partial Preamble Transmission Mechanism in NB-IoT Systems
Taehoon Kim, Dong Min Kim, Nuno Pratas +2
In this letter, we propose an enhanced Access Reservation Protocol (ARP) with a partial preamble transmission (PPT) mechanism for the narrow band Internet of Things (NB-IoT) system…
Statistical Multiplexing of Computations in C-RAN with Tradeoffs in Latency and Energy
Anders E. Kalør, Mauricio I. Agurto, Nuno K. Pratas +2
In the Cloud Radio Access Network (C-RAN) architecture, the baseband signals from multiple remote radio heads are processed in a centralized baseband unit (BBU) pool. This architec…
Massive Machine-Type Communication (mMTC) Access with Integrated Authentication
Nuno K. Pratas, Sarath Pattathil, Cedomir Stefanovic +1
We present a connection establishment protocol with integrated authentication, suited for Massive Machine-Type Communications (mMTC). The protocol is contention-based and its main…
Massive Machine-type Communications in 5G: Physical and MAC-layer solutions
Carsten Bockelmann, Nuno Pratas, Hosein Nikopour +5
Machine-type communications (MTC) are expected to play an essential role within future 5G systems. In the FP7 project METIS, MTC has been further classified into "massive Machine-T…
Full Duplex Emulation via Spatial Separation of Half Duplex Nodes in a Planar Cellular Network
Henning Thomsen, Dong Min Kim, Petar Popovski +2
A Full Duplex Base Station (FD-BS) can be used to serve simultaneously two Half-Duplex (HD) Mobile Stations (MSs), one working in the uplink and one in the downlink, respectively.…
Random Access for Machine-Type Communication based on Bloom Filtering
Nuno K. Pratas, Cedomir Stefanovic, German Corrales Madueno +1
We present a random access method inspired on Bloom filters that is suited for Machine-Type Communications (MTC). Each accessing device sends a \emph{signature} during the contenti…
Network-Assisted Device-to-Device (D2D) Direct Proximity Discovery with Underlay Communication
Nuno K. Pratas, Petar Popovski
Device-to-Device communications are expected to play an important role in current and future cellular generations, by increasing the spatial reuse of spectrum resources and enablin…
Assessment of LTE Wireless Access for Monitoring of Energy Distribution in the Smart Grid
Germán C. Madueño, Jimmy J. Nielsen, Dong Min Kim +3
While LTE is becoming widely rolled out for human-type services, it is also a promising solution for cost-efficient connectivity of the smart grid monitoring equipment. This is a t…
Effect of LOS/NLOS Propagation on Ultra-Dense Networks
Carlo Galiotto, Nuno K. Pratas, Linda Doyle +1
This paper aims at investigating the achievable performance and the issues that arise in ultra-dense networks (UDNs), when the signal propagation includes both the Line-of-Sight (L…
A Tractable Model of the LTE Access Reservation Procedure for Machine-Type Communications
Jimmy J. Nielsen, Dong Min Kim, Germán C. Madueño +2
A canonical scenario in Machine-Type Communications (MTC) is the one featuring a large number of devices, each of them with sporadic traffic. Hence, the number of served devices in…
Massive M2M Access with Reliability Guarantees in LTE Systems
German Corrales Madueno, Nuno K. Pratas, Cedomir Stefanovic +1
Machine-to-Machine (M2M) communications are one of the major drivers of the cellular network evolution towards 5G systems. One of the key challenges is on how to provide reliabilit…
What Can Wireless Cellular Technologies Do about the Upcoming Smart Metering Traffic?
Jimmy J. Nielsen, Germán C. Madueño, Nuno K. Pratas +3
The introduction of smart electricity meters with cellular radio interface puts an additional load on the wireless cellular networks. Currently, these meters are designed for low d…
A Stochastic Geometry Framework for LOS/NLOS Propagation in Dense Small Cell Networks
Carlo Galiotto, Nuno K. Pratas, Nicola Marchetti +1
The need to carry out analytical studies of wireless systems often motivates the usage of simplified models which, despite their tractability, can easily lead to an overestimation…
Zero-Outage Cellular Downlink with Fixed-Rate D2D Underlay
Nuno K. Pratas, Petar Popovski
Two of the emerging trends in wireless cellular systems are Device-to-Device (D2D) and Machine-to-Machine (M2M) communications. D2D enables efficient reuse of the licensed spectrum…
Low-Rate Machine-Type Communication via Wireless Device-to-Device (D2D) Links
Nuno K. Pratas, Petar Popovski
Wireless cellular networks feature two emerging technological trends. The first is the direct Device-to-Device (D2D) communications, which enables direct links between the wireless…
Analysis of the LTE Access Reservation Protocol for Real-Time Traffic
Henning Thomsen, Nuno K. Pratas, Cedomir Stefanovic +1
LTE is increasingly seen as a system for serving real-time Machine-to-Machine (M2M) communication needs. The asynchronous M2M user access in LTE is obtained through a two-phase acc…
Joint Estimation and Contention-Resolution Protocol for Wireless Random Access
Čedomir Stefanović, Kasper F. Trilingsgaard, Nuno K. Pratas +1
We propose a contention-based random-access protocol, designed for wireless networks where the number of users is not a priori known. The protocol operates in rounds divided into e…
Code-Expanded Random Access for Machine-Type Communications
Nuno K. Pratas, Henning Thomsen, Cedomir Stefanovic +1
The random access methods used for support of machine-type communications (MTC) in current cellular standards are derivatives of traditional framed slotted ALOHA and therefore do n…