TY - GEN
T1 - Can congestion control and traffic engineering be at odds?
AU - He, Jiayue
AU - Chiang, Mung
AU - Rexford, Jennifer L.
PY - 2006
Y1 - 2006
N2 - In the Internet today, traffic engineering is performed assuming that the offered traffic is inelastic. In reality, end hosts adapt their sending rates to network congestion, and network operators adapt the routing to the measured traffic. This raises the question of whether the joint system of congestion control and routing is stable and optimal. Using established optimization models for TCP and traffic engineering as a basis, we find the joint system is stable and typically maximizes aggregate user utility through simulation. The joint system may deviate from this solution when the topology is not uniform. A modification to the joint system will guarantee stability and optimality for applications that are sufficiently elastic, but at the cost of robustness.
AB - In the Internet today, traffic engineering is performed assuming that the offered traffic is inelastic. In reality, end hosts adapt their sending rates to network congestion, and network operators adapt the routing to the measured traffic. This raises the question of whether the joint system of congestion control and routing is stable and optimal. Using established optimization models for TCP and traffic engineering as a basis, we find the joint system is stable and typically maximizes aggregate user utility through simulation. The joint system may deviate from this solution when the topology is not uniform. A modification to the joint system will guarantee stability and optimality for applications that are sufficiently elastic, but at the cost of robustness.
KW - Congestion control
KW - Network utility maximization
KW - Optimization
KW - Robustness
KW - Routing
KW - Traffic engineering
UR - http://www.scopus.com/inward/record.url?scp=50949100706&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=50949100706&partnerID=8YFLogxK
U2 - 10.1109/GLOCOM.2006.20
DO - 10.1109/GLOCOM.2006.20
M3 - Conference contribution
AN - SCOPUS:50949100706
SN - 142440357X
SN - 9781424403578
T3 - GLOBECOM - IEEE Global Telecommunications Conference
BT - IEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference
T2 - IEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference
Y2 - 27 November 2006 through 1 December 2006
ER -