Angebote zu "Extension" (13 Treffer)

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Bintec-Elmeg: LTE (4G)/umts (3G) Extension [404...
518,68 € *
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Hersteller: Bintec-Elmeg Marke: Bintec-Elmeg Titel: LTE (4G)/umts (3G) Extension Rubrik: Netzwerk & Kommunikation // Router // Router Zubehoer System: NMS Verkaeufer: averdo

Anbieter: Rakuten
Stand: 25.02.2020
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Bintec-Elmeg 5530000119 LTE (4G)/umts (3G) Exte...
589,99 € *
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LTE (4G)/umts (3G) Erweiterungsgeraet fuer Router/ 1x Gbit Eth/ Simkarten Slot/ Wandhalterung/ PoE Injector inklusive

Anbieter: Rakuten
Stand: 25.02.2020
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Bintec-Elmeg 5530000119 LTE (4G)/umts (3G) Exte...
589,99 € *
ggf. zzgl. Versand

LTE (4G)/umts (3G) Erweiterungsgeraet fuer Router/ 1x Gbit Eth/ Simkarten Slot/ Wandhalterung/ PoE Injector inklusive

Anbieter: Rakuten
Stand: 25.02.2020
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Bintec-Elmeg LTE (4G)/umts (3G) Extension
493,14 € *
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LTE (4G)/umts (3G) Erweiterungsgerät für Router/ 1x Gbit Eth/ Simkarten Slot/ Wandhalterung/ PoE Injector inklusivebintec elmeg 4Ge-LE - 1000 Mbit/s - 10,100,1000 Mbit/s - Ieee 802.3af - Ethernet (Rj-45) - 110 - 240 V - 1 A4G(Lte)/3G(Umts) Erwei

Anbieter: Rakuten
Stand: 25.02.2020
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Study of WLAN Technologies and its Integration ...
64,90 € *
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Ad-hoc networks are becoming more and more successful in the marketplace as indicated by the increasing usage of Bluetooth and W-LAN networks. Despite all the successes so far and the promising future of ad-hoc networks, Internet connectivity will still be very important, and could quite likely be supported by cellular networks like GSM/GPRS or UMTS. Another possibility is to use ad-hoc networks as an extension of the cellular air-interface, leading to improvements in cellular capacity and coverage.The integration of WLAN and cellular systems has thus become the new focus of academic and industrial research, and standardization organizations such as the Third Generation Partnership Project (3GPP), which is mainly following the Universal Mobile Telecommunications System (UMTS) development, have started to carry out feasibility studies for this integrated network. The integration of cellular mobile and WLAN systems should be viewed and investigated from several perspectives. The main Challenge would be the architecture of the integrated network that could include both cellular system components and WLAN elements.

Anbieter: Dodax
Stand: 25.02.2020
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Mobile Satellite Communication Networks
230,00 CHF *
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Mobile satellite services are set to change with the imminent launch of satellite personal communication services (S-PCS), through the use of non-geostationary satellites. This new generation of satellites will be placed in low earth orbit or medium earth orbit, hence, introducing new satellite design concepts. One of the first texts to cover this rapidly evolving field, this text provides the reader with an overview of mobile satellite systems, from their initial introduction (Inmarsat), current satellite-PCS (referring to such systems as Globalstar), through to Satellite-UMTS and an understanding of the following: * The design concepts associated with non-geostationary satellite systems (constellation, link budgets, Doppler) * The concepts of UMTS (network architecture, aims, in the context of IMT-2000) and the role foreseen for the satellite component (complementary to terrestrial network, network extension, global availability) * Inter-working between satellite and terrestrial networks (network architecture, ATM Adaptation Layer) * Radio interface technologies (WB-CDMA, TDMA, transmission environment) * Regulatory issues * Future services and applications * Potential satellite markets (prediction techniques, effect of tariffing policies on potential market) With leading edge information, this valuable resource will be indispensable to researchers, engineers, operators and market evaluators in satellite service industries and research institutions, as well as postgraduates and research students in the field.

Anbieter: Orell Fuessli CH
Stand: 25.02.2020
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Vary, P: Digital Speech Transmission
199,00 CHF *
ggf. zzgl. Versand

The enormous advances in digital signal processing (DSP) technology have contributed to the wide dissemination and success of speech communication devices - be it GSM and UMTS mobile telephones, digital hearing aids, or human-machine interfaces. Digital speech transmission techniques play an important role in these applications, all the more because high quality speech transmission remains essential in all current and next generation communication networks. Enhancement, coding and error concealment techniques improve the transmitted speech signal at all stages of the transmission chain, from the acoustic front-end to the sound reproduction at the receiver. Advanced speech processing algorithms help to mitigate a number of physical and technological limitations such as background noise, bandwidth restrictions, shortage of radio frequencies, and transmission errors. Digital Speech Transmission provides a single-source, comprehensive guide to the fundamental issues, algorithms, standards, and trends in speech signal processing and speech communication technology. The authors give a solid, accessible overview of * fundamentals of speech signal processing * speech coding, including new speech coders for GSM and UMTS * error concealment by soft decoding * artificial bandwidth extension of speech signals * single and multi-channel noise reduction * acoustic echo cancellation This text is an invaluable resource for engineers, researchers, academics, and graduate students in the areas of communications, electrical engineering, and information technology.

Anbieter: Orell Fuessli CH
Stand: 25.02.2020
Zum Angebot
Mobile Satellite Communication Networks
135,00 CHF *
ggf. zzgl. Versand

Mobile satellite services are set to change with the imminent launch of satellite personal communication services (S-PCS), through the use of non-geostationary satellites. This new generation of satellites will be placed in low earth orbit or medium earth orbit, hence, introducing new satellite design concepts. One of the first texts to cover this rapidly evolving field, this text provides the reader with an overview of mobile satellite systems, from their initial introduction (Inmarsat), current satellite-PCS (referring to such systems as Globalstar), through to Satellite-UMTS and an understanding of the following: * The design concepts associated with non-geostationary satellite systems (constellation, link budgets, Doppler) * The concepts of UMTS (network architecture, aims, in the context of IMT-2000) and the role foreseen for the satellite component (complementary to terrestrial network, network extension, global availability) * Inter-working between satellite and terrestrial networks (network architecture, ATM Adaptation Layer) * Radio interface technologies (WB-CDMA, TDMA, transmission environment) * Regulatory issues * Future services and applications * Potential satellite markets (prediction techniques, effect of tariffing policies on potential market) With leading edge information, this valuable resource will be indispensable to researchers, engineers, operators and market evaluators in satellite service industries and research institutions, as well as postgraduates and research students in the field.

Anbieter: Orell Fuessli CH
Stand: 25.02.2020
Zum Angebot
Digital Speech Transmission
110,00 CHF *
ggf. zzgl. Versand

The enormous advances in digital signal processing (DSP) technology have contributed to the wide dissemination and success of speech communication devices - be it GSM and UMTS mobile telephones, digital hearing aids, or human-machine interfaces. Digital speech transmission techniques play an important role in these applications, all the more because high quality speech transmission remains essential in all current and next generation communication networks. Enhancement, coding and error concealment techniques improve the transmitted speech signal at all stages of the transmission chain, from the acoustic front-end to the sound reproduction at the receiver. Advanced speech processing algorithms help to mitigate a number of physical and technological limitations such as background noise, bandwidth restrictions, shortage of radio frequencies, and transmission errors. Digital Speech Transmission provides a single-source, comprehensive guide to the fundamental issues, algorithms, standards, and trends in speech signal processing and speech communication technology. The authors give a solid, accessible overview of * fundamentals of speech signal processing * speech coding, including new speech coders for GSM and UMTS * error concealment by soft decoding * artificial bandwidth extension of speech signals * single and multi-channel noise reduction * acoustic echo cancellation This text is an invaluable resource for engineers, researchers, academics, and graduate students in the areas of communications, electrical engineering, and information technology.

Anbieter: Orell Fuessli CH
Stand: 25.02.2020
Zum Angebot