Linear programming relaxations and a heuristic for the buffer sharing model - Discounted case

Jianhua Cao, Christian Nyberg

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

We investigate a model for buffer management of multi-class traffic into a finite shared buffer. A hierarchy of increasingly stronger linear programming relaxations for this model is proposed. The number of hierarchies equals the number of job classes. Each relaxation in the hierarchy is constructed by projecting the original achievable performance region into a polytope with fewer variables and fewer constraints. Based on the first order LP relaxation, we propose a heuristic buffer management policy which can be obtained efficiently and is applicable to a wide range of reward functions including weighted sum of throughputs and weighted sum of buffer utilization. According to our simulations, the proposed heuristic performs close to optimum in all traffic conditions when the objective is to maximize the weighted sum of throughputs.
Original languageEnglish
Title of host publicationPerformance Challenges for Efficient Next Generation Networks, Vols 6A-6C
PublisherBeijing University of Posts and Telecommunications
Pages939-948
Volume6A-6C
Publication statusPublished - 2005
Event19th International Teletraffic Congress (ITC 19) - Beijing, China
Duration: 2005 Aug 292005 Sept 2

Publication series

Name
Volume6A-6C

Conference

Conference19th International Teletraffic Congress (ITC 19)
Country/TerritoryChina
CityBeijing
Period2005/08/292005/09/02

Subject classification (UKÄ)

  • Communication Systems
  • Electrical Engineering, Electronic Engineering, Information Engineering

Fingerprint

Dive into the research topics of 'Linear programming relaxations and a heuristic for the buffer sharing model - Discounted case'. Together they form a unique fingerprint.

Cite this