TY - JOUR
T1 - Improved Priority Access, Bandwidth Allocation and Traffic Scheduling for DOCSIS Cable Networks
AU - Kuo, Wen Kuang
AU - Kumar, Sunil
AU - Kuo, C. C.Jay
N1 - Funding Information:
Manuscript received March 17, 2003; revised July 24, 2003. The research was supported by the Integrated Media Systems Center, a National Science Foundation Engineering Research Center, Cooperative Agreement no. EEC-9529152. W.-K. Kuo and C.-C. J. Kuo are with Department of Electrical Engineering and Integrated Media Systems Center, University of Southern California, Los Angeles, CA 90089 USA (e-mail: [email protected], [email protected]). S. Kumar is with Department of Electrical and Computer Engineering, Clarkson University, Potsdam, NY 13699 USA (e-mail: [email protected]). Digital Object Identifier 10.1109/TBC.2003.819522
PY - 2003/12
Y1 - 2003/12
N2 - The Data Over Cable Service Interface Specifications (DOCSIS) is intended to support IP flows over HFC (Hybrid Fiber/Coax) networks with significantly higher data rates than analog modems and Integrated Service Digital Network (ISDN) links for high quality audio, video and interactive services. To support quality-of-service (QoS) for such applications, it is important for HFC networks to provide effective media access and traffic scheduling mechanisms. In this paper, we first present a multilevel priority collision resolution scheme with adaptive contention window adjustment. The proposed collision resolution scheme separates and resolves collisions for different traffic priority classes (such as delay-sensitive and best effort streams), thus achieving the capability for preemptive priorities. Second, a novel MAC (media access control) scheduling mechanism and a new bandwidth allocation scheme are proposed to support multimedia traffic over DOCSIS-compliant cable networks. It is shown through simulation results that throughput and delay performance have been unproved for the transmission of real-time VBR (variable bit rate) traffic as compared to current DOCSIS specifications.
AB - The Data Over Cable Service Interface Specifications (DOCSIS) is intended to support IP flows over HFC (Hybrid Fiber/Coax) networks with significantly higher data rates than analog modems and Integrated Service Digital Network (ISDN) links for high quality audio, video and interactive services. To support quality-of-service (QoS) for such applications, it is important for HFC networks to provide effective media access and traffic scheduling mechanisms. In this paper, we first present a multilevel priority collision resolution scheme with adaptive contention window adjustment. The proposed collision resolution scheme separates and resolves collisions for different traffic priority classes (such as delay-sensitive and best effort streams), thus achieving the capability for preemptive priorities. Second, a novel MAC (media access control) scheduling mechanism and a new bandwidth allocation scheme are proposed to support multimedia traffic over DOCSIS-compliant cable networks. It is shown through simulation results that throughput and delay performance have been unproved for the transmission of real-time VBR (variable bit rate) traffic as compared to current DOCSIS specifications.
UR - https://www.scopus.com/pages/publications/0344875938
UR - https://www.scopus.com/pages/publications/0344875938#tab=citedBy
U2 - 10.1109/TBC.2003.819522
DO - 10.1109/TBC.2003.819522
M3 - Article
AN - SCOPUS:0344875938
SN - 0018-9316
VL - 49
SP - 371
EP - 382
JO - IEEE Transactions on Broadcasting
JF - IEEE Transactions on Broadcasting
IS - 4
ER -