Title :
A novel contention period control algorithm to improve throughput in HFC networks
Author :
Lo, Chih-Cheng ; Lai, Hung-Chang ; Chen, Wen-Shyen E.
Author_Institution :
Inst. of Comput. Sci., Nat. Chung-Hsing Univ., Taichung, Taiwan
Abstract :
The deployment of the hybrid fiber/coax (HFC) network has becomes ubiquitous to provide broadband services to the home. Due to the asymmetric natural of HFC network - the downstream bandwidth is substantially much larger than that of the upstream; therefore the upstream channel is critical to allocating and scheduling. In this paper, we propose a novel contention period control algorithm that incorporates bandwidth prediction capability in HFC networks to improve the utilization and throughput of the upstream bandwidth. Through simulations, we show that in all the cases studied in the paper, our adaptive method performs better than the MCNS DOCSIS.
Keywords :
access protocols; bandwidth allocation; broadband networks; optical fibre subscriber loops; telecommunication channels; telecommunication services; HFC networks; adaptive method; bandwidth prediction capability; broadband services; contention period control algorithm; hybrid fiber/coax network; upstream channel; Bandwidth; Cable TV; Communication cables; Digital video broadcasting; Hybrid fiber coaxial cables; Intelligent networks; Media Access Protocol; Multimedia systems; Throughput; Traffic control;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on
Print_ISBN :
0-7803-7822-9
DOI :
10.1109/PIMRC.2003.1264237
