Omar Elloumi

Learn More
Internet growing popularity has created a new need for a faster data access at home. Although this could be easily fulfilled by a Fiber to the home telecom solution, recent studies [10] show that an intermediate step before fiber lay out would be the use of asymmetric techniques over the legacy telephone network. These studies justify such an intermediate(More)
The Random Early Detection (RED) algorithm [8] is becoming a de-facto standard for congestion avoidance in the Internet and other packet switched networks. Recently several research and working groups have been discussing parameter settings of RED. Although there were some recommendations dealing with the adequate settings of RED parameters, and some router(More)
New broadband access technologies such as Hybrid Fiber Coaxial (HFC) are likely to provide fast and cost e ective support to a variety of applications including Video on Demand (VoD), inter-active computer games, and internet-type applications such as Web browsing, ftp, email, and telephony. Since most of these applications, use TCP as the transport layer(More)
In this paper, we introduce the need for trac shaping for the ecient transport of aggregate Internetworking trac over Di€erentiated Services (Di€Serv) networks. We propose a family of rate adaptive shapers (RASs) that aim at reducing the trac burstiness. Although RASs can be used in either pure Best-E€ort or any QoS enabled networks, our study is(More)
We consider the adaptation of random early detection (RED) as an active queue management algorithm for TCP traffic in Internet gateways where different maximum transfer units (MTUs) are used. We studied the two RED variants described in [1] and point out a weakness in both. The first variant where the drop probability is independent from the packet size(More)