Joint Subcarrier and Power Allocation for Sum-Rate Maximization in OFDMA Full-Duplex Systems

In this paper, we focus on the joint subcarrier and power allocation for an orthogonal frequency division multiple access (OFDMA) full-duplex (FD) system with the goal of maximizing the sum-rate subject to power constraints at the base station (BS) and uplink users, and subcarrier constraints. A greedy subcarrier allocation algorithm based on the necessary conditions of the optimization problem and a power allocation algorithm based on the iterative water-filling (IWF) are proposed. A hybrid scheduler that can switch between FD, half-duplex (HD) uplink and HD downlink mode at each time-slot to maximize the sum-rate is presented. Simulation results reveal that the proposed hybrid scheduling switches to FD scheduling at high self-interference cancellation values, and to HD-time-division- duplexing (TDD) scheduling at low self-interference cancellation values, and thus improves the sum-rate over the traditional HD-TDD scheduling.

[1]  Shuguang Cui,et al.  Efficient subcarrier, power, and rate allocation with fairness consideration for OFDMA uplink , 2008, IEEE Transactions on Wireless Communications.

[2]  Eric A. M. Klumperink,et al.  RF self-interference cancellation for full-duplex , 2014, 2014 9th International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM).

[3]  Pei Liu,et al.  Improving small cell capacity with common-carrier full duplex radios , 2014, 2014 IEEE International Conference on Communications (ICC).

[4]  Yue Rong,et al.  Achievable Rates of Full-Duplex MIMO Radios in Fast Fading Channels With Imperfect Channel Estimation , 2014, IEEE Transactions on Signal Processing.

[5]  Xiang Cheng,et al.  On the design of the scheduling algorithm for the full duplexing wireless cellular network , 2013, 2013 IEEE Globecom Workshops (GC Wkshps).

[6]  Yiming Ma,et al.  Breaking the Barrier of Transmission Noise in Full-Duplex Radio , 2013, MILCOM 2013 - 2013 IEEE Military Communications Conference.

[7]  Ioannis Krikidis,et al.  Full-Duplex Cooperative Diversity with Alamouti Space-Time Code , 2013, IEEE Wireless Communications Letters.

[8]  Wei Yu,et al.  Distributed multiuser power control for digital subscriber lines , 2002, IEEE J. Sel. Areas Commun..

[9]  Jianwei Huang,et al.  Downlink Scheduling and Resource Allocation for OFDM Systems , 2006 .

[10]  Jorma Lilleberg,et al.  On Rate Region Analysis Of Half- and Full-Duplex OFDM Communication Links , 2014, IEEE Journal on Selected Areas in Communications.

[11]  Ashutosh Sabharwal,et al.  Experiment-Driven Characterization of Full-Duplex Wireless Systems , 2011, IEEE Transactions on Wireless Communications.

[12]  Sachin Katti,et al.  Full duplex radios , 2013, SIGCOMM.

[13]  Pravin Varaiya,et al.  Capacity of fading channels with channel side information , 1997, IEEE Trans. Inf. Theory.

[14]  Yue Rong,et al.  MSE based transceiver designs for bi-directional full-duplex MIMO systems , 2014, 2014 IEEE 15th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC).

[15]  Youngnam Han,et al.  A Proportional Fairness Algorithm with QoS Provision in Downlink OFDMA Systems , 2006, IEEE Communications Letters.

[16]  Matti Latva-aho,et al.  On the Spectral Efficiency of Full-Duplex Small Cell Wireless Systems , 2014, IEEE Transactions on Wireless Communications.

[17]  Taneli Riihonen,et al.  Mitigation of Loopback Self-Interference in Full-Duplex MIMO Relays , 2011, IEEE Transactions on Signal Processing.

[18]  Jong-Ho Lee,et al.  Full-Duplex Relay Based on Distributed Beamforming in Multiuser MIMO Systems , 2013, IEEE Transactions on Vehicular Technology.

[19]  Seong-Lyun Kim,et al.  Joint subcarrier and power allocation in uplink OFDMA systems , 2005, IEEE Communications Letters.

[20]  Eric A. M. Klumperink,et al.  Analog/RF Solutions Enabling Compact Full-Duplex Radios , 2014, IEEE Journal on Selected Areas in Communications.

[21]  Yifan Li,et al.  Radio self-interference cancellation by transmit beamforming, all-analog cancellation and blind digital tuning , 2015, Signal Process..

[22]  Yiming Ma,et al.  A Method for Broadband Full-Duplex MIMO Radio , 2012, IEEE Signal Processing Letters.

[23]  Daesik Hong,et al.  Optimal Power Allocation and Outage Analysis for Cognitive Full Duplex Relay Systems , 2012, IEEE Transactions on Wireless Communications.

[24]  Matti Latva-aho,et al.  Weighted Sum-Rate Maximization for Full-Duplex MIMO Interference Channels , 2015, IEEE Transactions on Communications.

[25]  C. Ng,et al.  Low complexity subcarrier and power allocation for utility maximization in uplink OFDMA systems , 2008 .