Experimental Evaluation of FAST TCP Performance and Fairness in DOCSIS Cable Modem Networks

Experimental evaluation of DOCSIS 1.1 upstream performance

Data-Over-Cable Service Interface Specification (DOCSIS) is one of the many last mile technologies intended to provide Internet access and packet-based services to the customer. DOCSIS uses the widely deployed hybrid fiber/coax (HFC) network as the physical link between multiple cable modems (CMs) and the cable modem termination system (CMTS). This paper presents the upstream performance of DOC...

Priority Queuing of Network Game Traffic over a DOCSIS Cable Modem Link

Despite the greater bandwidth available for home Internet users, network problems continue to surface with regard to the mix of network applications being run. The ease in which Internet sharing can be configured, coupled with the increase in the number of computers present in consumer residences, increase the likelihood that concurrent network applications will have to compete for access to a ...

Performance Evaluation of Scheduling Mechanisms for Broadband Networks

While today's computer networks supports only best-effort service, future packet-switching integrated-services networks will have to support real-time communication services that allow clients to transport information with performance guarantees expressed in terms of delay, delay jitter throughput and loss rate. An important issue in providing guaranteed performance service is the choice of pac...

Performance Analysis of Optical Fibre Delay Line Buffers and DOCSIS Cable Modem Networks

Adaptive scheduling in DOCSIS-based CATV networks

This paper studies the effect of the DOCSIS MAC layer on the performance of two-way TCP transfers in Hybrid Fiber Coax (HFC) networks. We propose a new adaptive scheduling scheme called Long Packet Deferment (LPD) at the headend to improve TCP performance in DOCSIS-based HFC networks. LPD reduces the frequency of transmission of long packets and, if such long packets are transmitted, they are s...