By Khaldoun Al Agha, Guy Pujolle, Tara Ali Yahiha
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Data rate transmission can reach 144 kbps. 75G or 3G depending on the 26 Mobile and Wireless Networks implementation. CDMA2000 3x was specified on another frequency band. This standard has not been deployed. Finally, 1xEV-DO 4 IS856 or 1xEV-DV5 is used to increase the data transmission rate and support mobile video. In the High Speed Protocol Access (HSPA) family, which should evolve UMTS network toward a high data transmission rate, there are the HSDPA, HSUPA and HSOPA protocols which are the successors of UMTS.
The downside is of course the time taken to go back and forth between the network nodes that implement the decisions and the place where decisions are made. This approach is similar in all respects to that of Software-Defined Networks (SDNs). Here, since real time is often necessary, it could be important for the data center in which the algorithms are executed be close to the network equipment. One can speak of distributed Cloud or Local Cloud. This solution will be described in Chapter 13. The second main direction is virtualization.
E. autonomous and spontaneous. A major effort is made to obtain an automatic piloting system for configuration, security, availability and monitoring; – the encoding of the information is improved for even higher compression rates than 3G+. Error corrections are improved, but are rather similar to techniques used in 3G+; – interference management is greatly improved, so interference is virtually eliminated. These technologies use directive antennas (beamforming), which by their directivity can determine the location of the end machine; – the techniques used on the air interface may be asymmetric, for example a technical OFDMA on the downlink part and SC-FDMA on the uplink part.