Összesen 3 találat.


001-es BibID:BIBFORM064608
Első szerző:Balla Tamás
Cím:Overview of the Internet of Things Short Range Communication Technologies [elektronikus dokumentum] / Tamás Balla, Zoltán Gál
Megjegyzések:A letöltés ideje: 2016.09.19.
Based on the Internet of Things new services our lives of everyday changeda lot over the past few years. Smart cities, smart homes, e-health not onlyin our imagination exist, but are a reality today. These new solutions are usinghundreds or thousands of sensor devices which are collecting data. Thishuge amount of data needs to be stored for future processing and usage byintelligent IoT services. Sensors and actuators have to use adequate networkconnection for the data transmission. These new sensor and actuator devicesimply development of new communication technologies. Depending on theusage environment these technologies have not only advantages but disadvantages,as well. Really important aspect is that these types of communicationtechnologies are required to be interoperable with the well-known Internetnetwork standards like IPv4, IPv6. In the paper we give an overview andprofound comparison of the most popular short range wireless communicationtechnologies (e.g. NFC, ZigBee, BT LE, 6LowPAN, RPL, CoAP, IEEE1902.1, etc.) applied for IoT services and we identify the constraint aspectsof the real time Machine to Machine (M2M) communication based on theInternet technologies existing currently
Hozzáférés: Internet
ISBN:978 615 5297 18 2
Tárgyszavak:Műszaki tudományok Informatikai tudományok könyvfejezet
Megjelenés:Proceedings of the 9th International Conference on Applied Informatics January 29 - Februar 1, 2014. Eger, Hungary Volume II [elektronikus dokumentum] / ed. by Kovács Emőd, Kusper Gábor, Kunkli Roland, Tómács Tibor. - Vol. 2., p. 93-100. -
További szerzők:Gál Zoltán (1966-) (informatikus)
Pályázati támogatás:TÁMOP-4.2.2.C-11/1/KONV-2012-0001
Internet cím:Szerző által megadott URL
Intézményi repozitóriumban (DEA) tárolt változat


001-es BibID:BIBFORM062505
Első szerző:Gál Zoltán (informatikus)
Cím:A QoS hatása az infokommunikációs alkalmazásokra / Gál Zoltán, Balla Tamás
Tárgyszavak:Műszaki tudományok Informatikai tudományok magyar nyelvű folyóiratközlemény hazai lapban
Megjelenés:Híradástechnika. - 57 : 4 (2007), p. 7-16. -
További szerzők:Balla Tamás
Internet cím:Szerző által megadott URL
Intézményi repozitóriumban (DEA) tárolt változat


001-es BibID:BIBFORM062520
035-os BibID:Zbl. 1183.68037
Első szerző:Gál Zoltán (informatikus)
Cím:Statistical aspects of network based real-time group communication and collaboration services / Zoltán Gál, Tamás Balla
Megjegyzések:Deep studies of available real-time Group Communication and Collaboration (GCC) solutions such as voice, video and data teamwork tools have been performed by several international projects. The main goal of these works is to compare the applicability of these tools in the production job environment, and give recommendations on how such services can be provided to these groups. The total bit rate allowed per client is 256-2048 kbps for current GCC tools. This amount includes audio, video, control, web content and whiteboard traffic as well. The IEEE 802 type LAN/MAN communication technologies with best effort characteristics need quality of service (QoS) guarantees to provide real time service to the multimedia applications. The H.323/H.264 and the H.261 network protocols use relatively high number of UDP ports to accommodate automatically to the network layer comportment deeply influenced by bursts. This aspect explains the reduced number of service class configuration possibilities at the GCC client software. Even SOHO users with 256-512 kbps ADSL access need connection to the GCC servers. Analysis of mechanisms influencing traffic QoS is required. In the paper statistical evaluation of network traffic of the group communication and collaboration applications are effectuated with special interest regarding efficient regulation possibilities of the transmission mechanisms at low bit rate. Influence of the regulation will be presented based on time series captured in real multimedia network environment.
ISBN:978 963 069 341 7
Tárgyszavak:Műszaki tudományok Informatikai tudományok könyvfejezet
GCC Service
H.264 Codec
best effort
Hurst parameter
Megjelenés:Proceedings of the 7th International Conference on Applied Informatics, Eger, Hungary, January 28-31, 2007. / szerk. Emőd Kovács, Péter Olajos, Tibor Tómács. - Vol. 2., p. 343-351. -
További szerzők:Balla Tamás
Internet cím:Szerző által megadott URL
Intézményi repozitóriumban (DEA) tárolt változat
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