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Resource allocation for outdoor-to-indoor multicarrier transmission with shared UE-side distributed antenna systems

: Breiling, M.; Ng, D.W.K.; Rohde, C.; Burkhardt, F.; Schober, R.


Institute of Electrical and Electronics Engineers -IEEE-; IEEE Vehicular Technology Society -VTS-:
IEEE 81st Vehicular Technology Conference, VTC Spring 2015. Proceedings. Vol.1 : Glasgow, Scotland, United Kingdom, 11 - 14 May 2015
Piscataway, NJ: IEEE, 2015
ISBN: 978-1-4799-8089-5
ISBN: 978-1-4799-8088-8
ISBN: 978-1-4799-8087-1
Vehicular Technology Conference (VTC Spring) <81, 2015, Glasgow>
Fraunhofer IIS ()

In this paper, we study the resource allocation algorithm design for downlink multicarrier transmission with a shared user equipment (UE)-side distributed antenna system (SUDAS) which utilizes both licensed and unlicensed frequency bands for improving the system throughput. The joint UE selection and transceiver processing matrix design is formulated as a non-convex optimization problem for the maximization of the end-to-end system throughput (bits/s). In order to obtain a tractable resource allocation algorithm, we first show that the optimal transmitter precoding and receiver post-processing matrices jointly diagonalize the end-to-end communication channel. Subsequently, the optimization problem is converted to a scalar optimization problem for multiple parallel channels, which is solved by using an asymptotically optimal iterative algorithm. Simulation results illustrate that the proposed resource allocation algorithm for the SUDAS achieves an excellent system performance and provides a spatial multiplexing gain for single-antenna UEs.