Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Jukka Lempiainen"'
Publikováno v:
Journal of Computer Networks and Communications, Vol 2012 (2012)
A data-mining framework for analyzing a cellular network drive testing database is described in this paper. The presented method is designed to detect sleeping base stations, network outage, and change of the dominance areas in a cognitive and self-o
Externí odkaz:
https://doaj.org/article/f200dcc12c7e43ea84a515cc25c30769
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2008 (2008)
The aim of this paper is to perform an overall comparison of different network layouts for CDMA-based cellular radio access. Cellular network layout, including base station site locations and theoretical azimuth directions of antennas, can be defined
Externí odkaz:
https://doaj.org/article/ba9dcd36a34e424c92417bb38327322b
Autor:
Ritayan Biswas, Jukka Lempiainen
Publikováno v:
2023 18th Wireless On-Demand Network Systems and Services Conference (WONS).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c9774ccfc32a1c11c6bf4c2c4025c80
https://doi.org/10.23919/wons57325.2023.10062021
https://doi.org/10.23919/wons57325.2023.10062021
Funding Information: Special thanks to Keysight Technologies for providing NEMO Analyze license. Publisher Copyright: © 2022, The Author(s). The frequency spectrum is a scarce resource, and is owned and regulated by the state to ensure its efficient
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0680137294c2e1b2ceb58d79fda6c4f6
https://trepo.tuni.fi/handle/10024/141509
https://trepo.tuni.fi/handle/10024/141509
Autor:
Ritayan Biswas, Jukka Lempiainen
The aim of this article is to evaluate the applicability of 5G technology as a possible ambient signal for backscattering communications (AmBC). This evaluation considers both urban macro-cellular, small cell as well as rural highway environments. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::920bf92f546de014da8c813443c84b2b
https://trepo.tuni.fi/handle/10024/134360
https://trepo.tuni.fi/handle/10024/134360
Publikováno v:
Advances in Science, Technology and Engineering Systems (2019)
The aim of this article is to analyze and evaluate the performance of Coordinated Multipoint (CoMP) transmission approach at a frequency of 28 GHz using three dimensional ray tracing simulations in an urban macrocellular environment. The new performa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f7e8387e7ec5568181bf8f7d4f89799
http://juuli.fi/Record/0337970119
http://juuli.fi/Record/0337970119
Ambient backscatter communication (AmBC) systems utilize existing ambient radio frequency (RF) signals to establish an indirect communication link between a transmitter (TX) and a receiver (RX). Backscatter devices (BDs) modulate their useful informa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::781745885379de7f1438a7f94676b923
https://trepo.tuni.fi/handle/10024/143454
https://trepo.tuni.fi/handle/10024/143454
The purpose of this paper is to estimate the maximum achievable range for ambient backscattering communications (AmBC) by utilizing one of the lowest available frequency bands for mobile networks. Long term evolution (LTE) networks operating at 700 M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::532d9fcab7be747e44ef3075ad4d573d
https://trepo.tuni.fi/handle/10024/143019
https://trepo.tuni.fi/handle/10024/143019
Publikováno v:
Advances in Science, Technology and Engineering Systems, Vol 3, Iss 1, Pp 160-167 (2018)
The main target of this article is to perform the multidimensional analysis of multipath propagation in an indoor and outdoor environment at higher frequencies i.e. 15 GHz, 28 GHz and 60 GHz, using “sAGA” a 3D ray tracing tool. A real world outdo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3e4aed7a1e1dae5ce6d054480424740
https://doi.org/10.25046/aj030120
https://doi.org/10.25046/aj030120
Publikováno v:
Advances in Science, Technology and Engineering Systems, Vol 3, Iss 2, Pp 58-68 (2018)
The main target of this article is to study the provision of indoor service (coverage) using outdoor base station at higher frequencies i.e. 10 GHz, 30 GHz and 60 GHz. In an outdoor to indoor propagation, an angular wall loss model is used in the Gen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa88e78a50347b2b8b24e1d9a8b59937
https://doi.org/10.25046/aj030207
https://doi.org/10.25046/aj030207