@article{MTMT:33733520, title = {On the Convex Hull of the Achievable Capacity Region of the Two User FDM OMA Downlink}, url = {https://m2.mtmt.hu/api/publication/33733520}, author = {Belső, Zoltán and Pap, László}, doi = {10.36244/ICJ.2023.1.2}, journal-iso = {INFOCOMM J}, journal = {INFOCOMMUNICATIONS JOURNAL}, volume = {15}, unique-id = {33733520}, issn = {2061-2079}, abstract = {In multiple access channel systems, such as a mobile communication network, it is important to determine how to share the available resources (for example bandwidth and power) among the users. In recent years, one of the promising scheme is Non-Orthogonal Multiple Access (NOMA), where, unlike the traditional Orthogonal Multiple Access, OMA solution, signals for the different users overlap in some domain (power-domain NOMA, code-domain NOMA, etc). In order to evaluate the performance of any NOMA scheme, we need to compare the achievable bit rates of the users (the capacity region) to an OMA case with comparable parameters (for example, same total bandwidth, same total power and same channel conditions, etc). To make this comparison, we first need to know the capacity region for the OMA cases. Many papers make such comparison without detailing the derivation of the capacity region of the OMA case they compare to [1], [2], [3], [4]. In some cases, we have only one free parameter to choose (for example in uplink frequency division multiplexing systems for two users, it is the bandwidth ratio between the users), and the achievable capacity can be directly calculated for both users depending on the single parameter (hence the boundary of the capacity region is trivial). In other cases, such as downlink frequency division multiplexing systems, even for only two users, we have to allocate optimally two resources between the users: the bandwidth and the base station’s available power. Hence, it is far from being trivial to determine which combination is better and where the boundary of the capacity region is. In this paper, we provide a derivation for that case.}, year = {2023}, eissn = {2061-2125}, pages = {9-14} } @inproceedings{MTMT:33733500, title = {Capacity Analysis of Partially Overlapping NOMA System with Two Users}, url = {https://m2.mtmt.hu/api/publication/33733500}, author = {Belső, Zoltán and Pap, László}, booktitle = {Proceedings of the 1st Workshop on Intelligent Infocommunication Networks, Systems and Services (WI2NS2)}, doi = {10.3311/WINS2023-009}, unique-id = {33733500}, year = {2023}, pages = {47-51} } @article{MTMT:32900560, title = {Survey on PMIPv6-based Mobility Management Architectures for Software-Defined Networking}, url = {https://m2.mtmt.hu/api/publication/32900560}, author = {Leiter, Ákos and Mohamad, Saleh Salah and Pap, László and Bokor, László}, doi = {10.36244/ICJ.2022.2.1}, journal-iso = {INFOCOMM J}, journal = {INFOCOMMUNICATIONS JOURNAL}, volume = {14}, unique-id = {32900560}, issn = {2061-2079}, abstract = {Software-Defined Networking (SDN) has changed the network landscape. Meanwhile, IP-based mobility management still evolves, and SDN affects it dramatically. Integrating Proxy Mobile IPv6 (PMIPv6) – a network-based mobility management protocol – with the SDN paradigm has created several promising approaches. This paper will present an extensive survey on the joint research area of PMIPv6 and SDN mobility management by detailing the available SDN-integrated network-based techniques and architectures that intend to accelerate handover and mitigate service disruption of mobility events in softwareized telecommunication networks. The article also provides an overview of where PMIPv6 can be used and how SDN may help reach those ways.}, year = {2022}, eissn = {2061-2125}, pages = {2-18}, orcid-numbers = {Leiter, Ákos/0000-0003-1323-6541} } @article{MTMT:32900574, title = {A RÁDIÓIRÁNYMÉRÉS KORSZERŰ MÓDSZEREI}, url = {https://m2.mtmt.hu/api/publication/32900574}, author = {Pap, László and Dr. Fürjes, János and Gódor, Győző}, journal-iso = {SZAKMAI SZEMLE}, journal = {SZAKMAI SZEMLE: A KATONAI NEMZETBIZTONSÁGI SZOLGÁLAT TUDOMÁNYOS-SZAKMAI FOLYÓIRATA}, volume = {2021./1. szám}, unique-id = {32900574}, issn = {1785-1181}, year = {2021}, pages = {1-18} } @article{MTMT:30971839, title = {Recent Advances in Acquiring Channel State Information in Cellular MIMO Systems}, url = {https://m2.mtmt.hu/api/publication/30971839}, author = {Fodor, Gábor and Pap, László and Telek, Miklós}, doi = {10.36244/ICJ.2019.3.2}, journal-iso = {INFOCOMM J}, journal = {INFOCOMMUNICATIONS JOURNAL}, volume = {11}, unique-id = {30971839}, issn = {2061-2079}, abstract = {In cellular multi-user multiple input multiple output (MU-MIMO) systems the quality of the available channel state information (CSI) has a large impact on the system performance. Specifically, reliable CSI at the transmitter is required to determine the appropriate modulation and coding scheme, transmit power and the precoder vector, while CSI at the receiver is needed to decode the received data symbols. Therefore, cellular MUMIMO systems employ predefined pilot sequences and configure associated time, frequency, code and power resources to facilitate the acquisition of high quality CSI for data transmission and reception. Although the trade-off between the resources used user data transmission has been known for long, the near-optimal configuration of the vailable system resources for pilot and data transmission is a topic of current research efforts. Indeed, since the fifth generation of cellular systems utilizes heterogeneous networks in which base stations are equipped with a large number of transmit and receive antennas, the appropriate configuration of pilot-data resources becomes a critical design aspect. In this article, we review recent advances in system design approaches that are designed for the acquisition of CSI and discuss some of the recent results that help to dimension the pilot and data resources specifically in cellular MU-MIMO systems.}, year = {2019}, eissn = {2061-2125}, pages = {2-12}, orcid-numbers = {Telek, Miklós/0000-0001-9600-6084} } @article{MTMT:3418732, title = {A novel mobile communication system using Pulse Position based Chirp Spread Spectrum modulation}, url = {https://m2.mtmt.hu/api/publication/3418732}, author = {Knapp, Ádám and Pap, László}, doi = {10.24138/jcomss.v14i3.582}, journal-iso = {J COMM SOFTW SYST}, journal = {JOURNAL OF COMMUNICATIONS SOFTWARE AND SYSTEMS}, volume = {14}, unique-id = {3418732}, issn = {1845-6421}, year = {2018}, pages = {228-238}, orcid-numbers = {Knapp, Ádám/0000-0003-0764-5816} } @book{MTMT:3326578, title = {Tudományos távlatok [Elektronski izvor] : konferenciakötet / Vajdasági Magyar Tudóstalálkozó 2017, [Szabadka, 2017. április 8.]}, url = {https://m2.mtmt.hu/api/publication/3326578}, isbn = {9788689095128}, editor = {Pap, László}, publisher = {Akademski savet vojvođanskih mađara}, unique-id = {3326578}, year = {2017} } @inproceedings{MTMT:3229168, title = {Performance Analysis of Pulse Position based Chirp Spread Spectrum technique for Multiple Access}, url = {https://m2.mtmt.hu/api/publication/3229168}, author = {Knapp, Ádám and Pap, László}, booktitle = {2017 25th International Conference on Software, Telecommunications and Computer Networks (SoftCOM)}, doi = {10.23919/SOFTCOM.2017.8115574}, unique-id = {3229168}, year = {2017}, pages = {89-93}, orcid-numbers = {Knapp, Ádám/0000-0003-0764-5816} } @article{MTMT:3200350, title = {Ember nélkül vezetett légi jármûvekkel kapcsolatos jövõbeli elképzelések}, url = {https://m2.mtmt.hu/api/publication/3200350}, author = {Pap, László}, doi = {10.17047/HADTUD.2016.26.K.118}, journal-iso = {HADTUDOMÁNY}, journal = {HADTUDOMÁNY: A MAGYAR HADTUDOMÁNYI TÁRSASÁG FOLYÓIRATA}, volume = {26}, unique-id = {3200350}, issn = {1215-4121}, year = {2016}, eissn = {1588-0605}, pages = {118-121} } @article{MTMT:3176107, title = {A mítosz folytatódik}, url = {https://m2.mtmt.hu/api/publication/3176107}, author = {Pap, László}, journal-iso = {TERMÉSZET VILÁGA}, journal = {TERMÉSZET VILÁGA}, volume = {147}, unique-id = {3176107}, issn = {0040-3717}, year = {2016}, pages = {67-68} }