XIAO Yang, QU Guangzhi, Kiseon Kim, “A New DiffServ Edge Router with Controlled-UDP,” Chinese Journal of Electronics, vol. 24, no. 1, pp. 176-180, 2015,
Citation: XIAO Yang, QU Guangzhi, Kiseon Kim, “A New DiffServ Edge Router with Controlled-UDP,” Chinese Journal of Electronics, vol. 24, no. 1, pp. 176-180, 2015,

A New DiffServ Edge Router with Controlled-UDP

Funds:  This work is supported by the NSFC-KOSEF Joint Research Project of China and Korea (No.60811140343), Beijing Natural Science Foundation of China (No.4102050) and partially supported by Michigan Space Consortium.
  • Received Date: 2012-08-01
  • Rev Recd Date: 2014-05-01
  • Publish Date: 2015-01-10
  • The existing edge routers can not assign the link capacities between User datagram protocol (UDP) subscribers and Transmission control protocol (TCP) subscribers to ensure the multiple priorities traffics with Differentiate-Serve (DiffServ). To solve the problem, a new DiffServ edge router with Controlled-UDP (C-UDP) is proposed. The proposed DiffServ edge router can control the data rates of UDP and TCP subscribers according to their priorities. In the proposed edge router, there are multi-queues buffers controlled by TCP Active queue management (AQM) and UDP AQM algorithms to implement fair and stable link capacities. The proposed TCP AQM and UDP AQM algorithms achieve the network congestion control and DiffServ by operating AQM parameters on the stable conditions proposed by us. The dynamic simulation results demonstrate the proposed edge router for DiffServ network to be valid.
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