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Adaptive radio resource management for a cellular system with fixed relay nodes

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3 Author(s)
Boye, F. ; Tech. Univ. Dresden, Dresden ; Rost, P. ; Fettweis, G.

Future mobile communications systems demand for higher data rates and service quality compared to state-of-the-art systems. One way to achieve this ambitious goal is to use relaying which improves channel conditions by adding one or more intermediate nodes to support communication pairs. As relays do not rely on a wired backhaul, they can be flexibly deployed while keeping infrastructure costs lower than for additional base stations. Furthermore, relaying offers a variety of possible protocols - one promising concept is the cooperative transmission of different access points. Besides, the concurrent usage of different strategies is likely to be realized in next generation mobile communications systems, such that depending on the actual channel conditions the most beneficial strategy can be chosen. In this paper we present an adaptive and simple approach of partitioning the radio resources among different single-path and multi-path protocols. Our numerical analysis uses system level simulations of a 4G mobile communications system with relay enhanced cells and multiple antenna transmission.

Published in:

Personal, Indoor and Mobile Radio Communications, 2008. PIMRC 2008. IEEE 19th International Symposium on

Date of Conference:

15-18 Sept. 2008