Abstract
Centralized Radio Access Network (C-RAN) is a promising architecture for handling complex interference scenarios generated by massive antennas that are anticipated in the next generation (5G) mobile networks. In conventional C-RANs, the fronthaul link between a Base Band Unit (BBU) and a Remote Radio Unit (RRU) deploys digital baseband signaling using an optical fiber link. Recently, copper-based analog fronthauls have been proposed as a low cost alternative to the fiber optics based fronthauls. These cable based fronthauls for a RAN, also known as Radio over Cable (RoC), leverage the existing LAN cable architecture to meet the high bandwidth requirements with almost negligible cost. In this paper, we propose an analog scheduler for mapping radio users over a LAN cable with multiple twisted pairs. More specifically, we discuss an LTE MISO based RAN and propose a user scheduler for allocating resources on the LAN cable. Through extensive numerical simulations, we show that a low complexity problem can be formulated to obtain quasi-optimal user schedules for LoC.
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