Zobrazeno 1 - 10
of 28
pro vyhledávání: '"K. Kremnitzer"'
Autor:
Johann Lienhart, Malek Boussif, Rudolf Kronlachner, Peter Hric, R. Mullner, C.F. Ball, H. Winkler, K. Kremnitzer
Publikováno v:
European Transactions on Telecommunications. 21:458-468
Uplink power control in 3GPP UTRAN long term evolution (LTE) networks consists of a closed-loop scheme around an open-loop point of operation. The uplink performance of the network is decisively influenced by power control. This paper provides insigh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0be51b8f9c30b2241ef17fcae8c522ab
https://doi.org/10.1002/ett.1426
https://doi.org/10.1002/ett.1426
Autor:
H. Winkler, K. Kremnitzer, Kolio Dr. Ivanov, René Perl, Helmut Heinz, Carsten Ball, Robert Müllner
Publikováno v:
Wireless Personal Communications. 46:5-18
Different user segments have various requirements and expectations towards the performance of mobile networks. Subscribers having experienced the high quality of UMTS networks desire to maintain high speech quality and excellent data throughput also
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e55c900b540611f1d37ce0fed2f34471
https://doi.org/10.1007/s11277-007-9352-6
https://doi.org/10.1007/s11277-007-9352-6
Publikováno v:
GSM/EDGE: Evolution and Performance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09c17156d616d6c614036655bb9a9cf5
https://doi.org/10.1002/9780470669624.ch9
https://doi.org/10.1002/9780470669624.ch9
Autor:
Kolio Dr. Ivanov, Jari Hulkkonen, Marcin Grygiel, Robert Müllner, David Gallegos, Sebastian Lasek, Carsten Ball, Krystian Majchrowicz, H. Winkler, K. Kremnitzer
Publikováno v:
GSM/EDGE: Evolution and Performance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55a0ec7339b416e7bbf83049101dcbfc
https://doi.org/10.1002/9780470669624.ch12
https://doi.org/10.1002/9780470669624.ch12
Autor:
Khairul Hasan, Kolio Dr. Ivanov, Rafael C. D. Paiva, Carsten Ball, R. Jarvela, Mikko Saily, Alexandre Loureiro, Renato F. Iida, Robert Müllner, Fernando M. L. Tavares, Guillaume Sebire, H. Winkler, K. Kremnitzer, Michal Hronec
Publikováno v:
GSM/EDGE: Evolution and Performance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a12c4209bb693d1a5babe40e170a3f3
https://doi.org/10.1002/9780470669624.ch6
https://doi.org/10.1002/9780470669624.ch6
Publikováno v:
PIMRC
In mobile networks a most economic utilization of the channels on the air interface by means of intelligent radio resource management is desired since these resources are the most valuable ones. Half-rate speech codecs introduced in GERAN networks fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9e81f5319fe823b56026379ff873b36
https://doi.org/10.1109/pimrc.2008.4699490
https://doi.org/10.1109/pimrc.2008.4699490
Publikováno v:
2007 16th IST Mobile and Wireless Communications Summit.
As customer demand for wireless data services increases the bandwidth requirements for new applications are rapidly growing Half-rate speech codecs have been introduced in GERAN networks to save operator's spectrum shared by circuit switched voice an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f94a31ee56b026ec2d955a657435e39
https://doi.org/10.1109/istmwc.2007.4299072
https://doi.org/10.1109/istmwc.2007.4299072
Publikováno v:
2007 16th IST Mobile and Wireless Communications Summit.
Audio bandwidth extension in AMR-WB to twice of that used in AMR-NB provides essential subjective speech quality improvements, while the link level performance in GERAN networks for codec modes of comparable source bit rate is similar. This study ana
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f94eac8eaadd82ace5306c0a9019b89
https://doi.org/10.1109/istmwc.2007.4299071
https://doi.org/10.1109/istmwc.2007.4299071
Publikováno v:
PIMRC
Smart Quality Enhancement (SQE) aims at improving traditional quality based power control algorithms by automatically adjusting the transmit power control decision thresholds to the prevailing traffic load conditions. During low traffic periods a hig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6b2e7b1540acf3170808ec79118e201
https://doi.org/10.1109/pimrc.2006.254246
https://doi.org/10.1109/pimrc.2006.254246
Publikováno v:
PIMRC
Growing traffic load in today's wireless networks brings up new challenges with respect to capacity. Simultaneously the demands for high quality voice services are rising. AMR half-rate in 8-PSK modulation combines both aspects and provides doubling
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86bdf5926ec9975ad9ffdf9b4fd08a81
https://doi.org/10.1109/pimrc.2005.1651739
https://doi.org/10.1109/pimrc.2005.1651739