Title
On the benefits of location-based relay selection in mobile wireless networks
Abstract
Abstract We consider infrastructure-based mobile networks that are assisted by a single relay transmission where both the downstream destination and relay nodes are mobile. Selecting the optimal transmission path for a destination node requires up-to-date link quality estimates of all relevant links. If the relay selection is based on link quality measurements, the number of links to update grows quadratically with the number of nodes, and measurements need to be updated frequently when nodes are mobile. In this paper, we consider a location-based relay selection scheme where link qualities are estimated from node positions; in the scenario of a node-based location system such as GPS, the location-based approach reduces signaling overhead, which in this case only grows linearly with the number of nodes. This paper studies these two relay selection approaches and investigates how they are affected with varying information update interval, node mobility, location inaccuracy, and inaccurate propagation model parameters. Our results show that location-based relay selection performs better than SNR-based relay selection at typical levels of location error when medium-scale fading can be neglected or accurately predicted.
Year
DOI
Venue
2016
10.1007/s12243-015-0491-6
Annales des Télécommunications
Keywords
Field
DocType
Relay selection,Location-aided communications,Network simulation
Relay channel,Mobile wireless,Fading,Network simulation,Computer network,Electronic engineering,Global Positioning System,Relay,Location systems,Mathematics,Link Access Procedure for Frame Relay
Journal
Volume
Issue
ISSN
71
5-6
1958-9395
Citations 
PageRank 
References 
0
0.34
27
Authors
3
Name
Order
Citations
PageRank
Jimmy Jessen Nielsen115616.82
Tatiana K. Madsen26516.18
Hans-Peter Schwefel321042.31