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Wyszukujesz frazę "Amiri, Iraj Sadegh" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Investigation of QoS Performance Evaluation over 5G Network for Indoor Environment at millimeter wave Bands
Autorzy:
Qamar, Faizan
Hindia, Mohammad Nour
Abbas, Talib
Dimyati, Kaharudin Bin
Amiri, Iraj Sadegh
Powiązania:
https://bibliotekanauki.pl/articles/226266.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
5G
millimeter wave
CI-path loss
propagation channel
channel characterization
small cell
Opis:
One of the key advancement in next-generation 5G wireless networks is the use of high-frequency signals specifically those are in the millimeter wave (mm-wave) bands. Using mmwave frequency will allow more bandwidth resulting higher data rates as compared to the currently available network. However, several challenges are emerging (such as fading, scattering, propagation loss etc.), when we propagate the radio signal at high frequencies. Optimizing propagation parameters of the mm-wave channels system are much essential for implementing in the realworld scenario. To keep this in mind, this paper presents the potential abilities of high frequencies signals by characterizing the indoor small cell propagation channel for 28 GHz, 38 GHz, 60 GHz and 73 GHz frequency band, which is considered as the ultimate frequency choice for many of the researchers. The most potential Close-In (CI) propagation model for mm-wave frequencies is used as a Large-scale path loss model. The results have been collected concerning the capacity of users to evaluate the average user throughput, cell-edge user throughput, average cell throughput, spectral efficiency and fairness index. The statistical results proved that these mm-wave spectrum gives a sufficiently greater overall performance and are available for use in the next generation 5G mobile communication network.
Źródło:
International Journal of Electronics and Telecommunications; 2019, 65, 1; 95-101
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Resource Tuned Optimal Random Network Coding for Single Hop Multicast future 5G Networks
Autorzy:
Dong, Dhawa Sang
Pokhrel, Yagnya Murti
Gachhadar, Anand
Qamar, Faizan
Amiri, Iraj Sadegh
Maharjan, Ram Krishna
Powiązania:
https://bibliotekanauki.pl/articles/226605.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
coding coefficients
computational complexity
lower triangular matrix
random network coding
sparse coding
coefficients
Opis:
Optimal random network coding is reduced complexity in computation of coding coefficients, computation of encoded packets and coefficients are such that minimal transmission bandwidth is enough to transmit coding coefficient to the destinations and decoding process can be carried out as soon as encoded packets are started being received at the destination and decoding process has lower computational complexity. But in traditional random network coding, decoding process is possible only after receiving all encoded packets at receiving nodes. Optimal random network coding also reduces the cost of computation. In this research work, coding coefficient matrix size is determined by the size of layers which defines the number of symbols or packets being involved in coding process. Coding coefficient matrix elements are defined such that it has minimal operations of addition and multiplication during coding and decoding process reducing computational complexity by introducing sparseness in coding coefficients and partial decoding is also possible with the given coding coefficient matrix with systematic sparseness in coding coefficients resulting lower triangular coding coefficients matrix. For the optimal utility of computational resources, depending upon the computational resources unoccupied such as memory available resources budget tuned windowing size is used to define the size of the coefficient matrix.
Źródło:
International Journal of Electronics and Telecommunications; 2019, 65, 3; 463-469
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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