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Optimizing Link Rate Assignment and Transmission Scheduling in WMN through Compatible Set Generation

Li, Yuan LU ; Pioro, Michal LU ; Yuan, Di and Su, Jinshu (2015) In Telecommunications Systems
Abstract
Radio links in wireless mesh networks (WMN) can select one of several modulation and coding schemes (MCS). A MCS assignment influences links data rates and their mutual interference, and therefore should be optimized. We consider joint optimization of link rate assignment and transmission scheduling in order to maximize the minimal flow in a WMN. One of the main difficulties stems from the requirement that each link has to use only one selected MCS for all its transmissions. This requirement leads to a complicated exact branch-and-price method, which is quite time-consuming for networks of practical size. Thus, we propose an original heuristic based on simulated annealing that utilizes specific characteristics of the problem. The method... (More)
Radio links in wireless mesh networks (WMN) can select one of several modulation and coding schemes (MCS). A MCS assignment influences links data rates and their mutual interference, and therefore should be optimized. We consider joint optimization of link rate assignment and transmission scheduling in order to maximize the minimal flow in a WMN. One of the main difficulties stems from the requirement that each link has to use only one selected MCS for all its transmissions. This requirement leads to a complicated exact branch-and-price method, which is quite time-consuming for networks of practical size. Thus, we propose an original heuristic based on simulated annealing that utilizes specific characteristics of the problem. The method provides a balance between sub-optimality of the obtained solutions and the running time. The presented method is the main purpose and novelty of the paper. An extensive numerical study illustrates the effectiveness of the proposed approach. (Less)
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published
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in
Telecommunications Systems
publisher
Springer
external identifiers
  • scopus:84955378222
  • wos:000370168500010
ISSN
1018-4864
DOI
10.1007/s11235-015-0004-y
language
English
LU publication?
yes
id
c1aee16c-87e5-41da-bac4-96c43eb36628 (old id 3410204)
date added to LUP
2013-01-28 12:24:35
date last changed
2017-01-01 04:14:44
@article{c1aee16c-87e5-41da-bac4-96c43eb36628,
  abstract     = {Radio links in wireless mesh networks (WMN) can select one of several modulation and coding schemes (MCS). A MCS assignment influences links data rates and their mutual interference, and therefore should be optimized. We consider joint optimization of link rate assignment and transmission scheduling in order to maximize the minimal flow in a WMN. One of the main difficulties stems from the requirement that each link has to use only one selected MCS for all its transmissions. This requirement leads to a complicated exact branch-and-price method, which is quite time-consuming for networks of practical size. Thus, we propose an original heuristic based on simulated annealing that utilizes specific characteristics of the problem. The method provides a balance between sub-optimality of the obtained solutions and the running time. The presented method is the main purpose and novelty of the paper. An extensive numerical study illustrates the effectiveness of the proposed approach.},
  author       = {Li, Yuan and Pioro, Michal and Yuan, Di and Su, Jinshu},
  issn         = {1018-4864},
  language     = {eng},
  publisher    = {Springer},
  series       = {Telecommunications Systems},
  title        = {Optimizing Link Rate Assignment and Transmission Scheduling in WMN through Compatible Set Generation},
  url          = {http://dx.doi.org/10.1007/s11235-015-0004-y},
  year         = {2015},
}