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Router Algorithms for Improving Fairness in Differentiated Services  

Nam, Dong-Ho (Samsung Electronics Corporation)
Choi, Young-Soo (Dept.of Electronics Engineering, Kyungpook National University)
Kim, Byung-Chul (NIST)
Cho, You-Ze (Dept.of Electronics Electrical Computer, Kyungpook National University)
Abstract
The IETF Differentiated Services (Diffserv) WG focused on Providing service differentiation on the Internet. One problem of the Diffserv Assured Services (AS) architecture is that it cannot guarantee fairness and throughput assurance. In this paper, we propose two schemes for guaranteeing fairness among the various target rates in the AS architecture. One is a variant of RED with IN and OUT (RIO), called the improved RIO (IRIO). The other is a variant of Time Sliding Window (TSW), called the improved TSW (ITSW). To validate the Proposed schemes, their behaviors are then examined under various simulation environments. The simulation results showed that IRIO and ITSW improved fairness and the throughput assurance in the AS architecture.
Keywords
Differentiated Services; Quality of Service; fairness; buffer management; traffic conditioner;
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