Search Results - "Lempiäinen, Jukka"

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  1. 1

    Assessment of 5G as an ambient signal for outdoor backscattering communications by Biswas, Ritayan, Lempiäinen, Jukka

    Published in Wireless networks (01-08-2021)
    “…The aim of this article is to evaluate the applicability of 5G technology as a possible ambient signal for backscattering communications (AmBC). This…”
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    Journal Article
  2. 2

    Polarization adaptation to improve cell border area bitrates and system capacity in small cells by Lempiäinen, Jukka, Sheikh, Muhammad Usman, Asp, Ari, Jäntti, Riku

    Published in Wireless networks (01-04-2024)
    “…The target of this paper is to show the impact of polarization adaptation on the received signal quality in an outdoor small-cell deployment scenario. The…”
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    Journal Article
  3. 3

    Impact of antenna radiation pattern variation on the performance of SPMA at 28 GHz by Sheikh, Muhammad Usman, Lempiäinen, Jukka

    Published in Wireless networks (01-02-2018)
    “…The target of this paper is to analyze the impact of variation in antenna radiation pattern on the performance of Single Path Multiple Access (SPMA) in…”
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    Journal Article
  4. 4

    Macro cellular network transition from traditional frequency range to 28 GHz millimeter wave frequency band by Sheikh, Muhammad Usman, Lempiäinen, Jukka

    Published in Wireless networks (01-04-2018)
    “…The target of this article is to analyze the impact of transition from cellular frequency band i.e. 2.1 GHz to Millimeter Wave (mmWave) frequency band i.e…”
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    Journal Article
  5. 5

    Analysis of multipoint transmission at higher frequencies using 3‐D ray tracing by Sheikh, Muhammad Usman, Lempiäinen, Jukka

    “…Summary The target of this article is to analyze the impact of multipoint transmission e.g. joint transmission (JT) in an outdoor microcellular environment at…”
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    Journal Article
  6. 6

    Assessment of Network Layouts for CDMA Radio Access by Itkonen, Jarkko, Tuzson, Balazs, Lempiäinen, Jukka

    “…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…”
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    Journal Article
  7. 7

    Evaluation of SPMA and higher order sectorization for homogeneous SIR through macro sites by Sheikh, Muhammad Usman, Säe, Joonas, Lempiäinen, Jukka

    Published in Wireless networks (01-05-2016)
    “…This paper highlights the performance of single path multiple access (SPMA) and discusses the performance comparison between higher order sectorization and…”
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    Journal Article
  8. 8

    In preparation towards future cellular networks: the detailed analysis of macro and micro site densification and sector densification by Sheikh, Muhammad Usman, Säe, Joonas, Lempiäinen, Jukka

    Published in Telecommunication systems (01-08-2017)
    “…The next generation of cellular networks is expected to provide huge capacity, and site densification is one of the possible solution to increase the network…”
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    Journal Article
  9. 9

    Arguments of Innovative Antenna Design and Centralized Macro Sites for 5G by Sheikh, Muhammad Usman, Säe, Joonas, Lempiäinen, Jukka

    Published in Wireless personal communications (01-10-2017)
    “…The evolution of mobile networks has been extremely fast during the last decade. However, the advancements in the technological ways of improving the system…”
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    Journal Article
  10. 10

    Will New Antenna Materials Enable Single Path Multiple Access (SPMA)? by Sheikh, Muhammad Usman, Lempiäinen, Jukka

    Published in Wireless personal communications (01-09-2014)
    “…The aim of this paper is to introduce a novel frequency reuse concept especially for macro cellular networks to substantially increase the mobile network…”
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    Journal Article
  11. 11

    Optimum Antenna Downtilt Angles for Macrocellular WCDMA Network by Niemelä, Jarno, Isotalo, Tero, Lempiäinen, Jukka

    “…: The impact of antenna downtilt on the performance of cellular WCDMA network has been studied by using a radio network planning tool. An optimum downtilt…”
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    Journal Article
  12. 12

    Performance Evaluation of Coordinated Multipoint Transmission at 28 GHz Frequency Using 3D Ray Tracing by Sheikh, Muhammad Usman, Biswas, Ritayan, Lempiaeinen, Jukka

    “…The main target of this paper is to evaluate the performance of Coordinated Multipoint (CoMP) transmission technique at Millimeter Wave (mmWave) frequency…”
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    Conference Proceeding
  13. 13

    Performance analysis of dual-cell HSDPA plus MIMO and LTE along with adaptive MIMO switching at the cellular level by Sheikh, Muhammad Usman, Lempiäinen, Jukka

    Published in Physical communication (01-12-2013)
    “…The main target of this research work is to present the performance analysis of Dual-Cell High Speed Downlink Packet Access (DC-HSDPA) plus Multiple Input…”
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    Journal Article
  14. 14

    A Flower Tessellation for Simulation Purpose of Cellular Network with 12-Sector Sites by Sheikh, M. U., Lempiainen, J.

    Published in IEEE wireless communications letters (01-06-2013)
    “…This paper presents a novel network tessellation for 12-sector site deployment called "Flower" topology for use in cellular network simulations. The aim of…”
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    Journal Article
  15. 15

    Utilization of an Indoor DAS for Repeater Deployment in WCDMA by Borkowski, J., Niemela, J., Isotalo, T., Lahdekorpi, P., Lempiainen, J.

    “…The aim of this paper is to assess the applicability of a repeater connected to a distributed antenna system for improving indoor capacity in UMTS radio…”
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    Conference Proceeding
  16. 16

    An Approach for Network Outage Detection from Drive-Testing Databases by Ristaniemi, Tapani, Chernogorov, Fedor, Brigatti, Kimmo, Lempiäinen, Jukka, Turkka, Jussi

    “…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…”
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    Journal Article
  17. 17

    Optimum antenna downtilt angles for macrocellular WCDMA network by NIEMELÄ, Jarno, ISOTALO, Tero, LEMPIÄINEN, Jukka

    “…The impact of antenna downtilt on the performance of cellular WCDMA network has been studied by using a radio network planning tool. An optimum downtilt angle…”
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    Journal Article
  18. 18

    Measurements on HSUPA with uplink diversity reception in indoor environment by Isotalo, Tero, Lempiäinen, Jukka

    Published in 2010 European Wireless Conference (EW) (01-04-2010)
    “…The target of the paper is to study performance of high speed uplink packet access (HSUPA) in indoor environment, applicability of uplink diversity reception…”
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    Conference Proceeding
  19. 19

    Practical Network-Based Techniques for Mobile Positioning in UMTS by Borkowski, Jakub, Lempiäinen, ukka

    “…This paper presents results of research on network-based positioning for UMTS (universal mobile telecommunication system). Two new applicable network-based…”
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    Journal Article
  20. 20

    Assessment of Network Layouts for CDMA Radio Access by Itkonen, Jarkko, Tuzson, Balazs, Lempiäinen, Jukka

    “…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…”
    Get full text
    Journal Article