@conference {12279, title = {Differentiated traffic engineering for QoS provisioning}, booktitle = {INFOCOM 2005. 24th Annual Joint Conference of the IEEE Computer and Communications Societies. Proceedings IEEE}, volume = {4}, year = {2005}, month = {2005/03//}, pages = {2349 - 2359 vol. 4 - 2349 - 2359 vol. 4}, abstract = {We introduce a new approach for QoS provisioning in packet networks based on the notion of differentiated traffic engineering (DTE). We consider a single AS network capable of source based multi-path routing. We do not require sophisticated queuing or per-class scheduling at individual routers; instead, if a link is used to forward QoS sensitive packets, we maintain its utilization below a threshold. As a consequence, DTE eliminates the need for per-flow (IntServ) or per-class (DiffServ) packet processing tasks such as traffic classification, queueing, shaping, policing and scheduling in the core and hence poses a lower burden on the network management unit. Conversely, DTE utilizes network bandwidth much more efficiently than simple over-provisioning. In this paper, we propose a complete architecture and an algorithmic structure for DTE. We show that our scheme can be formulated as a non-convex optimization problem, and we present an optimal solution framework based on simulated annealing. We present a simulation-based performance evaluation of DTE, and compare our scheme to existing (gradient projection) methods.}, keywords = {based, Computer, differentiated, DiffServ, DTE;, engineering;, evaluation;, link;, links;, management;, multipath, network, networks;, nonconvex, of, optimisation;, OPTIMIZATION, packet, performance, problem;, provisioning;, QoS, QUALITY, routing;, service;, simulation-based, source, Telecommunication, traffic, traffic;}, doi = {10.1109/INFCOM.2005.1498521}, author = {Tabatabaee,V. and Bhattacharjee, Bobby and La,R.J. and Shayman,M.A.} }