Title :
Modeling the contention mechanism of DOCSIS in HFC networks
Author :
Chang, Kai-Chien ; Liao, Wanjiun
Author_Institution :
Graduate Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
28 June-1 July 2004
Abstract :
The hybrid fiber coax (HFC) network is a widely-used technology of broadband access networks to the home. The data-over-cable service interface specifications (DOCSIS) designed by the Multimedia Cable Network System Partners (MCNS) is the de facto standard in the cable industry. This paper studies the contention effect of DOCSIS in HFC networks. In particular, we focus on the performance of TCP. We develop a Markov model to estimate the probability of a CM transmitting a request in a randomly selected mini-slot. Based on the derived request transmission probability, the mean access delay for TCP transfers is calculated. We also conduct simulations via network simulator version 2 (ns-2) to validate the analysis.
Keywords :
Markov processes; broadband networks; hybrid fibre coax networks; transport protocols; Markov model; Multimedia Cable Network System Partners; TCP; broadband access networks; cable industry; data-over-cable service interface specifications; de facto standard; hybrid fiber coax network; transport control protocol; Analytical models; Coaxial components; Collision mitigation; Delay; Hybrid fiber coaxial cables; Intelligent networks; Modems; Multimedia systems; Optical fiber cables; Probability;
Conference_Titel :
Computers and Communications, 2004. Proceedings. ISCC 2004. Ninth International Symposium on
Print_ISBN :
0-7803-8623-X
DOI :
10.1109/ISCC.2004.1358638
