Autor: Gandhi, P. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Comparative Modelling Studies of 400 MHz ST-X Quartz SAW Delay Lines for Potential Gas Sensing Applications
Autorzy:: Thirumal, V.
Raju, B.
Gandhi, P.
Pandya, H. M.
Powiązania:: https://bibliotekanauki.pl/articles/177740.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: surface acoustic wave
SAW delay line
impulse response model
equivalent circuit model
coupling-of-modes
COM model
SAW sensors
Opis:: Surface Acoustic Wave (SAW) devices like delay lines, filters, resonators etc., are nowadays extensively used as principal solid state components in many electronic applications and chemical vapour sensors. To bring out the best from these SAW devices, computational design and modelling are resorted too. The present paper proposes the modelling of 400 MHz ST-X Quartz based SAW delay line, by three models namely, Impulse Response Model (IRM), Crossed-field Equivalent Circuit Model (ECM) and Coupling-of-Modes (COM) model. MATLAB^® is employed as a computational tool to model the experimental output of the SAW device. A comparative discussion of the modelled device results is also provided.
Źródło:: Archives of Acoustics; 2018, 43, 2; 153-161
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: An Improved Greedy Forwarding Scheme in MANETs
Autorzy:: Mishra, P.
Gandhi, C.
Singh, B.
Powiązania:: https://bibliotekanauki.pl/articles/308279.pdf
Data publikacji:: 2017
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: MANET
distance-based routing
direction-based routing
greedy forwarding
Opis:: Position-based routing protocols are widely accepted efficient solution for routing in MANETs. The main feature of position-based routing protocols is to use greedy forwarding methods to route data. The greedy forwarding methods select a node, either having maximum progress towards destination (distance-based principle) or minimum deviation with line between source and destination (direction-based strategy). The first method minimizes the hopcount in a path and on the other hand, second method minimizes the spatial distance between source and destination. The distance-based routing has a great impact on the selection of reliable node and the direction based routing plays a major role to increase the stability of route towards destination. Therefore, in this paper authors propose a weighted forwarding method, which combines both the selection, schemes to select an optimal next forwarding node in a range. The simulation results show that the proposed scheme performs better than existing position-based routing protocols.
Źródło:: Journal of Telecommunications and Information Technology; 2017, 1; 50-55
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Link Quality and Energy Aware Geographical Routing in MANETs using Fuzzy Logics
Autorzy:: Mishra, P.
Gandhi, C.
Singh, B.
Powiązania:: https://bibliotekanauki.pl/articles/308336.pdf
Data publikacji:: 2016
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: GPSR
LAR
MANET
RSSI
SINR
SNR
Opis:: In literature, varieties of topology and geographical routing protocols have been proposed for routing in the MANETs. It is widely accepted that the geographical routings are a superior decision than topological routings. Majority of geographical routing protocols assume an ideal network model and choose the route that contains minimum number of hops. However, in reality, nodes have limited battery power and wireless links are additionally unreliable, so they may highly affect the routing procedure. Thus, for reliable data transmission, condition of the network such as link quality and residual energy must be considered. This paper aims to propose a novel multi-metric geographical routing protocol that considers both links-quality and energy metric along with progress metric to choose the next optimal node. The progress is determined by utilizing greedy as well as compass routing rather than pure greedy routing schemes. To combine these metrics, fuzzy logics are used to get the optimal result. Further, the protocol deals with “hole” problem and proposes a technique to overcome it. Simulations show that the proposed scheme performs better in terms of the packet delivery ratio, throughput and residual energy than other existing protocols.
Źródło:: Journal of Telecommunications and Information Technology; 2016, 3; 5-17
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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