Results 221 to 230 of about 257,066 (245)

Δίκτυα 4G τεχνοοικονομική ανάλυση 4G

2013
Στην παρούσα διπλωματική εργασία παρουσιάζονται τα δίκτυα 4ης γενιάς (4G). Η τέταρτη γενιά (4G) είναι η επόμενη γενιά των ασύρματων δικτύων που θα αντικαταστήσει τα δίκτυα τρίτης γενιάς (3G) και θα προσφέρει στους χρήστες όλα όσα δεν κατάφεραν να δώσουν τα προηγούμενα δίκτυα.
openaire   +1 more source

?????????????????????? ?????????????????????? ?????????????? ???????????????????????? ???????????????? ?? ?????????????????? ?? ?????????????????????????? 5G/4G ???????? ???????????????????? ???????????????????? ???????????????????????? ?????????????? ????????

2017
?????????????????? ?????????????????????? ?????????????????? ???????????????????????? 5G/4G ???????? ???????????????????? ???????????????????? ???????????????????????? ?????????????? ???????? ?? ???????????? ???? ?????????????????? ?????????????? ?????????????????? ??????????. ?????????????? ?????????????????????? ???????????????????? ????????????????,
openaire   +1 more source

To 4G mobile communication and beyond

2013 International Symposium on VLSI Technology, Systems and Application (VLSI-TSA), 2013
In summary, we envision that the future mobile communication network will be an Ultra Dense, Diverse Access Technologies Converged, Intelligent Network infrastructure complemented by a Device-to-Device network. An ultra-dense radio network with cells of many different sizes is the most effective way of increasing system capacity and ubiquitously covers
openaire   +1 more source

Antenna design challenges for 4G

IEEE Wireless Communications, 2011
The trend in mobile wireless devices has been to provide faster access, improved processors, more memory, brighter and higher resolution screens, additional connectivity with Wi-Fi, GPS, third generation (3G), and fourth generation (4G) world access - all with longer battery life in thinner, sleeker packages.
openaire   +1 more source

The evolution to 4G systems

Bell Labs Technical Journal, 2009
Jean-Paul Rissen, Robert Soni
openaire   +1 more source

OpenAir Interface for 4G Core Network and 4G/5G Base Stations

2023 International Conference on Electrical, Computer and Energy Technologies (ICECET), 2023
Mla Vilakazi, Thomas O. Olwal, Luzango Pangani Mfupe, Albert Lysko   +3 more
openaire   +1 more source

Research on OFDM Technology in 4G

2013
As 3G (third generation mobile communication systems) is at the stage of increasingly large-scale application in China, multimedia communication services is one of the most prominent features in 3G, the technology research of the next generation mobile communication systems (Beyond 3G-after 3G) or (4G- four-generation mobile communication systems) has ...
openaire   +1 more source

Implementimg 4G technology

IEEE Wireless Communications, 2004
openaire   +2 more sources

The Role of UWB in 4G

Wireless Personal Communications, 2004
openaire   +1 more source

4G-Warriors

Proceedings of the International Conference on Computer Applications — Computer Applications - I, 2010
Yasar Arfath N., Imranullah M.
openaire   +1 more source