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Fair Flow Rate Optimization by Effective Placement of Directional Antennas in Wireless Mesh Networks

Li, Yuan LU ; Pioro, Michal LU and Landfeldt, Björn LU (2015) In Performance Evaluation 87. p.92-106
Abstract
Directional antennas have been used to solve interference and connectivity issues in wireless networks for some time. Many scenarios have been presented and often positive conclusions are drawn, i.e., showing the increase in capacity. However, to date the research has mainly focused on either antenna placement or transmission scheduling but not the two combined. Such consideration will become increasingly important with the advent of heterogeneous networks and other possible combinations of public access networks in the near future.}



\textbf{In this paper we study the problem of maximizing the minimal flow rate from gateways to mesh routers in wireless mesh networks using a combination of directional and omni-directional... (More)
Directional antennas have been used to solve interference and connectivity issues in wireless networks for some time. Many scenarios have been presented and often positive conclusions are drawn, i.e., showing the increase in capacity. However, to date the research has mainly focused on either antenna placement or transmission scheduling but not the two combined. Such consideration will become increasingly important with the advent of heterogeneous networks and other possible combinations of public access networks in the near future.}



\textbf{In this paper we study the problem of maximizing the minimal flow rate from gateways to mesh routers in wireless mesh networks using a combination of directional and omni-directional antennas. We present mixed integer programming models for deploying directional antennas at appropriate nodes, and finding a corresponding transmission scheduling (with data rate adaptation) for non-preset and preset routing. By introducing directional antennas, the considered traffic objective is substantially improved, which is verified by the numerical study.

Interestingly, the results also show that it is not always optimal to deploy directional antennas at all possible nodes due to the increased interference observed at non-receiving nodes within the beam width. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Performance Evaluation
volume
87
pages
92 - 106
publisher
Elsevier
external identifiers
  • wos:000355351600008
  • scopus:84939998322
ISSN
0166-5316
DOI
10.1016/j.peva.2015.01.007
language
English
LU publication?
yes
id
cb2408cc-ceab-43f9-872c-70faf284cfda (old id 4935783)
date added to LUP
2015-01-16 13:05:03
date last changed
2017-01-01 03:08:07
@article{cb2408cc-ceab-43f9-872c-70faf284cfda,
  abstract     = {Directional antennas have been used to solve interference and connectivity issues in wireless networks for some time. Many scenarios have been presented and often positive conclusions are drawn, i.e., showing the increase in capacity. However, to date the research has mainly focused on either antenna placement or transmission scheduling but not the two combined. Such consideration will become increasingly important with the advent of heterogeneous networks and other possible combinations of public access networks in the near future.}<br/><br>
<br/><br>
\textbf{In this paper we study the problem of maximizing the minimal flow rate from gateways to mesh routers in wireless mesh networks using a combination of directional and omni-directional antennas. We present mixed integer programming models for deploying directional antennas at appropriate nodes, and finding a corresponding transmission scheduling (with data rate adaptation) for non-preset and preset routing. By introducing directional antennas, the considered traffic objective is substantially improved, which is verified by the numerical study.<br/><br>
Interestingly, the results also show that it is not always optimal to deploy directional antennas at all possible nodes due to the increased interference observed at non-receiving nodes within the beam width.},
  author       = {Li, Yuan and Pioro, Michal and Landfeldt, Björn},
  issn         = {0166-5316},
  language     = {eng},
  pages        = {92--106},
  publisher    = {Elsevier},
  series       = {Performance Evaluation},
  title        = {Fair Flow Rate Optimization by Effective Placement of Directional Antennas in Wireless Mesh Networks},
  url          = {http://dx.doi.org/10.1016/j.peva.2015.01.007},
  volume       = {87},
  year         = {2015},
}