Wireless multimedia through heterogeneous satellite networks

Author

Conti, A. ; Giorgetti, A.

Author_Institution

Dipt. di Elettronica, Inf. e Sistemistica, Bologna Univ., Italy

Volume

3

fYear

2001

fDate

2001

Firstpage

2270

Abstract

The transmission of multimedia services through heterogeneous satellite networks is analyzed by means of measures over a real test-bed inside the Telecommunication Laboratory at CSITE-CNR, University of Bologna, Italy. An IEEE 802.11 wireless local area network (WLAN) is integrated with a wired LAN and connected to a video on demand (VoD) server through the ITALSAT II Ka-band satellite link made available by CNIT (Consorzio Nazionale Interuniversitario per le Telecomunicazioni). At first, the WLAN radio link is characterized in terms of mean received power for different terminal locations. After that, MPEG-1 video streams with different data-rate are transmitted from the VoD server to many wireless stations. A traffic characterization, for both the single source and the aggregated traffic, is carried out, and quality of service is measured, in terms of average dropped ratio, as a function of channel conditions, data-rate, and the number of wireless terminals requiring the service

Keywords

multimedia communication; packet radio networks; quality of service; satellite communication; telecommunication traffic; video on demand; visual communication; wireless LAN; Bologna University; CNIT; CSITE-CNR; IEEE 802.11 WLAN; ITALSAT II; Ka-band satellite link; MPEG-1 video streams; QoS; VoD server; aggregated traffic; average dropped ratio; channel conditions; data-rate; heterogeneous satellite networks; quality of service; single source; traffic characterization; video on demand server; wired LAN; wireless local area network; wireless multimedia; wireless terminals; Artificial satellites; Laboratories; Local area networks; Network servers; Radio link; Satellite broadcasting; Telecommunication traffic; Testing; Video on demand; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd

Conference_Location

Rhodes

ISSN

1090-3038

Print_ISBN

0-7803-6728-6

Type

conf

DOI

10.1109/VETECS.2001.945100

Filename

945100