Аппаратура радиоуправления TRAXXAS 4 Channel TQi TSM Radio System w/Bluetooth Module

Аппаратура радиоуправления TRAXXAS 4 Channel TQi TSM Radio System w/Bluetooth Module

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Sana Salous Radio Propagation Measurement and Channel Modelling

Sana Salous Radio Propagation Measurement and Channel Modelling

While there are numerous books describing modern wireless communication systems that contain overviews of radio propagation and radio channel modelling, there are none that contain detailed information on the design, implementation and calibration of radio channel measurement equipment, the planning of experiments and the in depth analysis of measured data. The book would begin with an explanation of the fundamentals of radio wave propagation and progress through a series of topics, including the measurement of radio channel characteristics, radio channel sounders, measurement strategies, data analysis techniques and radio channel modelling. Application of results for the prediction of achievable digital link performance would be discussed with examples pertinent to single carrier, multi-carrier and spread spectrum radio links. This work would address specifics of communications in various different frequency bands for both long range and short range fixed and mobile radio links.

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Сетевой адаптер Mellanox ConnectX-3 Pro EN network interface card 10GbE dual port SFP+ PCIe3.0 x8 8GT/s tall bracket RoHS R6 MCX312B-XCCT

Сетевой адаптер Mellanox ConnectX-3 Pro EN network interface card 10GbE dual port SFP+ PCIe3.0 x8 8GT/s tall bracket RoHS R6 MCX312B-XCCT

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Сетевой адаптер Mellanox ConnectX-3 Pro EN network interface card 10GbE dual port SFP+ PCIe3.0 x8 8G

Сетевой адаптер Mellanox ConnectX-3 Pro EN network interface card 10GbE dual port SFP+ PCIe3.0 x8 8G

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Сетевой адаптер Mellanox ConnectX-3 Pro EN network interface card 10GbE dual port SFP+ PCIe3.0 x8 8GT/s tall bracket RoHS R6 MCX312B-XCCT

Сетевой адаптер Mellanox ConnectX-3 Pro EN network interface card 10GbE dual port SFP+ PCIe3.0 x8 8GT/s tall bracket RoHS R6 MCX312B-XCCT

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Andre Perez Voice over LTE. EPS and IMS Networks

Andre Perez Voice over LTE. EPS and IMS Networks

Voice over LTE (Long Term Evolution) presents the mechanisms put in place in 4G mobile networks for the transportation of IP packets containing voice data and telephone signaling, as well as the technologies used to provide a telephone service in the IMS (IP Multimedia Sub-system) network. Despite the difficulty connected to the handover of the 4G network to the 2G/3G network, a telephone communication will not be established on the 4G network. This book analyzes the technologies that have been put in place, such as CSFB (Circuit Service FallBack), an interim solution that enables a mobile connected to the 4G network to receive an alert transmitted by the 2G/3G network. The book also goes on to develop the SIP (Session Information Protocol) on which the telephone signaling transferred by the 4G network is based, the IMS network that provides the service and defines the routing, the SRVCC (Single Radio Voice Call Continuity) mechanism that maintains communication and the TAS (Telephony Application Server) that supplies supplementary services. Contents 1. The EPS Network. 2. The LTE Interface. 3. The CSFB Function. 4. SIP and SDP Protocols. 5. The IMS Network. 6. Telephone Services. 7. The SRVCC Function. About the Authors André Perez is a consultant and teacher in networks and telecommunications. He works with industrialists and operators regarding architecture studies and leads training on the 4G and IMS networks for NEXCOM.

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Andre Perez Mobile Networks Architecture

Andre Perez Mobile Networks Architecture

This book explains the evolutions of architecture for mobiles and summarizes the different technologies: – 2G: the GSM (Global System for Mobile) network, the GPRS (General Packet Radio Service) network and the EDGE (Enhanced Data for Global Evolution) evolution; – 3G: the UMTS (Universal Mobile Telecommunications System) network and the HSPA (High Speed Packet Access) evolutions: – HSDPA (High Speed Downlink Packet Access), – HSUPA (High Speed Uplink Packet Access), – HSPA+; – 4G: the EPS (Evolved Packet System) network. The telephone service and data transmission are the two main services provided by these networks. The evolutions are fundamentally dictated by the increase in the rate of data transmission across the radio interface between the network and mobiles. This book is intended as a readily understandable support to help students and professionals wishing to quickly acquire the main concepts of networks for mobiles understand the technologies deployed.

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Точка доступа Ubiquiti UniFi AP AC Long Range UAP-AC-LR-EU

Точка доступа Ubiquiti UniFi AP AC Long Range UAP-AC-LR-EU

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Приемник Immersion RC 8 канальный EzUHF Long Range RC Diversity

Приемник Immersion RC 8 канальный EzUHF Long Range RC Diversity

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