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Roll-out Decisions in a Multihop Cellular System with Fixed Relays
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS. KTH, School of Information and Communication Technology (ICT), Centres, Center for Wireless Systems, Wireless@kth.
2005 (English)Conference paper, Published paper (Refereed)
Abstract [en]

The infrastructure costs of a hybrid multihop cellular has previously been analyzed by assuming fixed traffic loads. In reality the traffic load in a commercial system gradually increases and therewith the network must be upgraded. The timing and the type of upgrade may have important impact on the overall infrastructure cost. A first step in analyzing the costs of a hybrid network roll-out is taken in this paper. It is assumed that a wireless relay can be turned into an access point by connecting it to a wired transport network. A criterion is introduced for deciding whether to deploy a new relay or turn an old one into an access point, based on the estimated capacity increase and on the present value of the additional costs associated with each upgrade type. The decision is taken as a single-action event at a given time, i.e. ignoring the opportunities created or missed by the decision. It also assumes that the equipment is worth nothing at the end of the operational phase. Numerical examples in a simple deployment scenario show that it is worth deploying relays for up to three hops, at the beginning of the operation period, if the units are of pico-base station type. Relays are always turned into access points toward the end of the operation period.

Place, publisher, year, edition, pages
2005.
National Category
Computer and Information Science
Research subject
SRA - ICT
Identifiers
URN: urn:nbn:se:kth:diva-28095OAI: oai:DiVA.org:kth-28095DiVA: diva2:383952
Conference
Swedish Workshop on Wireless Ad-hoc Networks
Note
QC 20110111Available from: 2011-01-06 Created: 2011-01-06 Last updated: 2011-01-11Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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  • Other locale
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