Abstract
Energy consumption is an important issue in the design and use of networks. In this paper, we explore energy savings in networks via a rate adaptation model. This model can be represented by a cost-minimization network routing problem with discrete cost functions. We formulate this problem as an integer program, which is proved to be NP-hard. Then a constant approximation algorithm is developed. In our proposed method, we first transform the program into a continuous-cost network routing problem, and then we approximate the optimal solution by a two-step rounding process. We show by analysis that, for uniform demands, our method provides a constant approximation for the uniform network routing problem with discrete costs. A bicriteria network routing problem is also developed so that a trade-off can be made between energy consumption and network delay. Analytical results for this latter model are also presented.
| Original language | English |
|---|---|
| Title of host publication | Theory and Applications of Models of Computation - 9th Annual Conference, TAMC 2012, Proceedings |
| Pages | 307-318 |
| Number of pages | 12 |
| DOIs | |
| Publication status | Published - 2012 |
| Externally published | Yes |
| Event | 9th Annual Conference on Theory and Applications of Models of Computation, TAMC 2012 - Beijing, China Duration: 16 May 2012 → 21 May 2012 |
Publication series
| Name | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
|---|---|
| Volume | 7287 LNCS |
| ISSN (Print) | 0302-9743 |
| ISSN (Electronic) | 1611-3349 |
Conference
| Conference | 9th Annual Conference on Theory and Applications of Models of Computation, TAMC 2012 |
|---|---|
| Country/Territory | China |
| City | Beijing |
| Period | 16/05/12 → 21/05/12 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
-
SDG 7 Affordable and Clean Energy
Keywords
- approximation
- network optimization
- network routing
Fingerprint
Dive into the research topics of 'Energy-efficient network routing with discrete cost functions'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver