Flexible bandwidth allocation in hybrid fiber coax distribution networks

Author

Kolarov, Aleksandar ; Weinstein, Stephen

Author_Institution

C&C Res. Labs., NEC USA Inc., Princeton, NJ, USA

Volume

2

fYear

1995

fDate

14-16 Nov 1995

Firstpage

983

Abstract

Hybrid fiber/coax (HFC) subscriber networks are a popular architecture for interactive video/multimedia on-demand services. The available downstream bandwidth for data transmission is partitioned into streams, typically 25-50 Mbps, shared by varied traffic of multiple subscribers. Given subscriber receivers that can tune one stream at a time, we show that correlated traffic can significantly increase the probability of blocking. The performance associated with uncorrelated traffic can be retrieved by offloading selected traffic from one stream to another, demonstrating a close association of configuration operations with call processing. We describe an algorithm that achieves this performance

Keywords

coaxial cables; correlation methods; interactive video; multimedia communication; optical fibre networks; probability; subscriber loops; telecommunication traffic; television receivers; 25 to 50 Mbit/s; HFC subscriber networks; bandwidth allocation; blocking probability; cable TV; call processing; correlated traffic; data transmission; downstream bandwidth; hybrid fiber coax distribution networks; interactive video on-demand services; multimedia on-demand services; network architecture; performance; subscriber receivers; uncorrelated traffic; Channel allocation; Coaxial cables; Coaxial components; Hybrid fiber coaxial cables; Intelligent networks; Optical fiber cables; Streaming media; Telecommunication traffic; Traffic control; Video on demand;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1995. GLOBECOM '95., IEEE

Print_ISBN

0-7803-2509-5

Type

conf

DOI

10.1109/GLOCOM.1995.502552

Filename

502552