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http://dx.doi.org/10.6109/jkiice.2014.18.11.2613

User Scheduling Algorithm for Cell Capacity Maximization in Full Duplexing Wireless Cellular Networks  

Choi, Hyun-Ho (Department of Electrical, Electronic and Control Engineering, Institute for Information Technology Convergence, Hankyong National University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.18, no.11, 2014 , pp. 2613-2620 More about this Journal
Abstract
In this paper, we consider a full duplexing (FD) wireless cellular network where a central base station (BS) works in the FD mode while the downlink (DL) and uplink (UL) users work in the time division duplexing (TDD) mode. Since this FD system induces the inter-user interference from UL user to DL user, the main challenge for maximizing the system performances is user scheduling that makes a pair of DL user and UL user to use the same radio resource simultaneously. We formulate an optimization problem for user pairing to maximize the cell capacity and propose a suboptimal user scheduling algorithm with low complexity. This scheduling algorithm is designed in a way where the DL user with a better signal quality has a higher priority to choose its UL user that causes less interference. Simulation results show that the FD system using the proposed user scheduling algorithm achieves the optimal performance and significantly outperforms the conventional TDD system in terms of the cell capacity.
Keywords
Full duplexing; User scheduling; Radio resource management; Cell capacity maximization;
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