BER Performance of OFDM-based 4096-QAM Using Soft Decision Viterbi Decoding in Multipath Fading

Fifth-generation (5G) mobile systems are required to increase data rates. Higher-order quadrature amplitude modulation (QAM) can increase data rates within a limited bandwidth. This paper proposes orthogonal frequency division multiplexing (OFDM)-based 4096-QAM in 5G mobile systems. We present the BER performance of OFDM-based 4096-QAM using soft decision Viterbi decoding as parameters of the coding rate in multipath fading channels in comparison with existing QAM and quadrature phase shift keying. We also clarify the influence of phase error for OFDM-based 4096-QAM, i.e., the SNR penalty in the presence of phase error by link-level simulations.

[1]  Yoshihisa Kishiyama,et al.  A novel architecture for LTE-B :C-plane/U-plane split and Phantom Cell concept , 2012, 2012 IEEE Globecom Workshops.

[2]  Liu Liu,et al.  CQI table design to support 256 QAM in small cell environment , 2013, 2013 International Conference on Wireless Communications and Signal Processing.

[3]  Hiroyuki Otsuka,et al.  Transmission performance of OFDM with 1024-QAM in the presence of EVM degradation , 2014, 2014 IEEE Asia Pacific Conference on Wireless and Mobile.

[4]  Antonio Manzalini,et al.  Horizon 2020 and Beyond: On the 5G Operating System for a True Digital Society , 2015, IEEE Vehicular Technology Magazine.

[5]  Juquan Mao,et al.  A low complexity 256QAM soft demapper for 5G mobile system , 2016, 2016 European Conference on Networks and Communications (EuCNC).

[6]  Hiroyuki Otsuka,et al.  Performance evaluation of OFDM-based 256- and 1024-QAM in multipath fading propagation conditions , 2017, 2017 Ninth International Conference on Ubiquitous and Future Networks (ICUFN).

[7]  Taneli Riihonen,et al.  Performance of Amplify-and-Forward and Decode-and-Forward Relays in LTE-Advanced , 2009, 2009 IEEE 70th Vehicular Technology Conference Fall.

[8]  Jeffrey G. Andrews,et al.  What Will 5G Be? , 2014, IEEE Journal on Selected Areas in Communications.

[9]  Hiroyuki Otsuka,et al.  Transmission performance of OFDM-based 1024-QAM in multipath fading conditions , 2018 .

[10]  Simone Redana,et al.  Performance Enhancement in LTE-Advanced Relay Networks via Relay Site Planning , 2010, 2010 IEEE 71st Vehicular Technology Conference.

[11]  Stefan Parkvall,et al.  Future wireless access small cells and heterogeneous deployments , 2013, ICT 2013.

[12]  Satoshi Suyama,et al.  3D beamforming effect for backhaul link in time-division relaying , 2017, 2017 Ninth International Conference on Ubiquitous and Future Networks (ICUFN).

[13]  Inkyu Lee,et al.  3D beamforming designs for Single User MISO systems , 2013, 2013 IEEE Global Communications Conference (GLOBECOM).