Ng, Derrick Wing KwanDerrick Wing KwanNgBreiling, MarcoMarcoBreilingRohde, ChristianChristianRohdeBurkhardt, FrankFrankBurkhardtSchober, RobertRobertSchober2022-03-052022-03-052016https://publica.fraunhofer.de/handle/publica/24683710.1109/TWC.2016.2517626In this paper, we study the design of the user selection, the time allocation to uplink and downlink, and the transceiver processing matrix for uplink and downlink multicarrier transmission employing a shared user equipment (UE)-side distributed antenna system (SUDAS). The proposed SUDAS simultaneously utilizes licensed frequency bands and unlicensed frequency bands with large available bandwidths (e.g. the millimeter wave bands) to enable a spatial multiplexing gain for single-antenna UEs to improve the energy efficiency and throughput of 5th generation (5G) outdoor-to-indoor communication. The resource allocation algorithm design is formulated as a nonconvex optimization problem for the maximization of the end-to-end system energy efficiency (bits/Joule). The nonconvex matrix optimization problem is converted to an equivalent nonconvex scalar optimization problem for multiple parallel channels, which is solved by an asymptotically globally optimal iterative algorithm.en384journal article