Cellular-relaying network dimensioning with cross-layer resource allocation

The enhancement of cellular networks with relaying technologies is expected to bring significant techno-economic benefits, but proper allocation of resources may be a challenging task. This paper addresses the question whether cross-layer optimization is essential for obtaining the expected relaying...

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Bibliographic Details
Main Authors: Timus, B., Soldati, P.
Format: Conference Proceeding
Language:English
Subjects:
Base stations
Costs
Information technology
Informationsteknik
Interference
Land mobile radio cellular systems
Physical layer
Power system relaying
Radio link
Relays
Resource management
Routing
TECHNOLOGY
TEKNIKVETENSKAP
Telecommunication
Telekommunikation
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Summary:The enhancement of cellular networks with relaying technologies is expected to bring significant techno-economic benefits, but proper allocation of resources may be a challenging task. This paper addresses the question whether cross-layer optimization is essential for obtaining the expected relaying benefits. We present a network dimensioning approach based on joint routing and radio resource allocation. We consider a macro-cellular scenario with a max-min user-rate objective. If a single route per source is fixed, rates and time-shares can be optimally allocated to each link. In a simple macro-cellular propagation environment, the relays must cost at most 10-25% of a base station cost, if the network is deployed at once. The results are only slightly better when the routing is included in the joint resource allocation.
ISSN:2166-9570
DOI:10.1109/PIMRC.2008.4699631