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001-es BibID:	BIBFORM071877
Első szerző:	Novac, Ovidiu
Cím:	Comparative study of Google Android, Apple iOS and Microsoft Windows Phone mobile operating systems / Ovidiu Constantin Novac, Cornelia Gordan, Michaela Novac, Tamas Berczes, Gyöngyi Bujdosó
Dátum:	2017
Megjegyzések:	This paper focuses on a comparative study of themost used three operating systems for mobile devices: GoogleAndroid, Apple iOS and Microsoft Windows Phone. The articlepresents which are the most important features of this threeoperating systems. The paper also deals with the features thatthese operating systems have in common and analyzes some oftheir disadvantages.
ISBN:	978-1-5090-6073-3
Tárgyszavak:	Műszaki tudományok Informatikai tudományok előadáskivonat könyvrészlet Google Android Apple iOS Windows Phone Mobile Mobile Operating Systems software platforms
Megjelenés:	2017 14th International Conference on Engineering of Modern Electric Systems (EMES), Oradea, Romania, June 01-02, 2017. - p. 154-159. -
További szerzők:	Gordan, Cornelia Novac, Mihaela Bérczes Tamás (1975-) (informatikus) Bujdosó Gyöngyi (1963-) (informatikus, informatika, matematika, kémia tanár)
Internet cím:	DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM071876
Első szerző:	Novac, Ovidiu
Cím:	Modeling RF-based sensor networks by using dual-source retrial queueing systems / Ovidiu Constantin Novac, Tamás Bérczes, Attila Kuki, Ádám Tóth, Wolfgang Schreiner
Dátum:	2017
Megjegyzések:	Here, we would like to study the efficiency andutilization of radio frequency (RF) transmission in wireless sensornetworks. A new dual source queueing model (with finite andinfinite numbers of sensors) is introduced in order to obtainthe most frequently studied system performance characteristics(e.g. mean response time, average number of jobs waiting fortransmission, and the utilization of the RF unit). The differenttypes of sensors form the "sources" and the RF unit formsthe "central servicing node" of this model. The elements of thesensor fields are classified according to their working purposes:The first class is the "Emergency" or "Special" class which isresponsible to notify special rare events (e.g. fire alarms). Theother class is the "Standard" class where sensors measure datafrom standard conventional events or occurrences (eg. motiondetection, wind speed, level of darkness etc). For energy efficiencyreasons the Central Unit (or Radio Frequency Unit - RFU)might switch into a reduced functioning mode. This reducedcommunication mode is for saving energy. The transmissionsare closed in this mode. Returning from the reduced mode twocases are considered and two models are created to comparetheir steady-state system performance characteristics: In the firstmodel, the RF transmission is available randomly to the sensornodes ("Non-Controlled" case). In the other case, the CentralUnit jobs which come from the Special class, can use the wirelessservice immediately ("Controlled" case).
ISBN:	978-1-5090-6073-3
Tárgyszavak:	Műszaki tudományok Informatikai tudományok előadáskivonat könyvrészlet wireless sensors performance evaluation retrial queueing stochastic simulation
Megjelenés:	2017 14th International Conference on Engineering of Modern Electric Systems (EMES), Oradea, Romania, June 01-02, 2017. - p. 149-153. -
További szerzők:	Bérczes Tamás (1975-) (informatikus) Kuki Attila (1964-) (informatikus, matematikus) Tóth Ádám (1990-) (mérnökinformatikus) Schreiner, Wolfgang
Internet cím:	DOI Intézményi repozitóriumban (DEA) tárolt változat
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