Generic link layer: A solution for multi-radio transmission diversity in communication networks beyond 3G

Generic link layer : A solution for multi-radio transmission diversity in communication networks beyond 3G

QC 20130531
Communication systems beyond 3G (B3G) will consist of a mixture of radio access technologies. For such systems the challenge is to provide a multi-radio access architecture that facilitates the interconnection of heterogeneous radio access networks and supports efficiently the various services. Achieving this interconnection in a transparent way for users and services requires extensions at link layer level. The Generic Link Layer (GLL), as proposed in the context of the Ambient Networks (AN) project addresses this challenge. The principal role of GLL within the AN multi-radio access architecture is to integrate different Radio Access Technologies (RATs) at the link layer and to facilitate their efficient interworking. A feature that is enabled by the use of GLL is termed multi-radio transmission diversity (MRTD). It implies a well-defined split of a data-flow over the available RATs; the main benefits thereby are gain in user QoS, in spectral efficiency and in robustness. In this paper we give the system architecture and the GLL functions required for the realization of MRTD. Then, the specific scenario of cooperation between UMTS and IEEE 802.11 is discussed.

TEKNIK OCH TEKNOLOGIER Elektroteknik och elektronik hsv//swe
ENGINEERING AND TECHNOLOGY Electrical Engineering, Electronic Engineering, Information Engineering hsv//eng
communication networks beyond 3G
Ambient Networks
generic link layer
multi-radio access
multi-radio transmission diversity
UMTS/HSDPA
IEEE 802.11.

By the author/editor: Dimou, Konstanti ...; Aguero, Ramon; Bortnik, M; Reza, K; Koudouridis, Geo ...; Kaminski, S; show more...; Lederer, H; Sachs, J; show less...

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