Temat: DS-CDMA - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Modelling of CDMA systems
Autorzy:: Gajewski, P.
Krygier, J.
Powiązania:: https://bibliotekanauki.pl/articles/308360.pdf
Data publikacji:: 2001
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: OPNET
DS-CDMA
cellular systems
network simulation
Opis:: This paper describes a model of a system with wideband CDMA that is a proposal of user access for future UMTS. This model has been implemented using OPNET tool. The model enables network architecture, radio interface, mobile station motion, call generation, signalling, etc. The examples of simulation results of call and handover blocking probability are also presented in this paper.
Źródło:: Journal of Telecommunications and Information Technology; 2001, 2; 35-40
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: From modelling of a CDMA transceiver in indoor environment to an ASIC circuit synthesis
Autorzy:: Bourdel, S.
Campo, E.
Melet, P.
Andrieux, L.
Powiązania:: https://bibliotekanauki.pl/articles/309537.pdf
Data publikacji:: 2001
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: indoor radiocommunications
wireless transceiver modelling
CDMA
DS-SS systems
Opis:: This paper presents the study, design and simulation of a multi-flow radio frequency transceiver based on a direct sequence spread-spectrum with a 2,4 GHz carrier. First, the functional model of differential QPSK modulation for digital transmission, and the different parts making up spread spectrum function (spreader, despreader, tracking and synchronising devices) have been studied, implemented, simulated and validated in noisy multi-users and multi-path environment by using a unified language, The results obtained by taking into account the home automation running constraints have allowed to determine some critical parameter values and so to integrate the digital functions in an ASIC circuit.
Źródło:: Journal of Telecommunications and Information Technology; 2001, 3; 36-45
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Informacja