A Non-orthogonal Waveform Design with Iterative Detection and Decoding for Narrowband IoT Applications

TY - GEN

T1 - A Non-orthogonal Waveform Design with Iterative Detection and Decoding for Narrowband IoT Applications

AU - Mahama, Sumaila

AU - Harbi, Yahya J.

AU - Burr, Alister G.

AU - Grace, David

N1 - Funding Information: ACKNOWLEDGEMENT The work described in this paper is supported by the European Union’s Horizon 2020 research programme through the SPOTLIGHT project under grant ID 722788. Publisher Copyright: © 2019 IEEE.

PY - 2019/6

Y1 - 2019/6

N2 - Narrowband Internet of Things (NB-IoT) was proposed by 3GPP in Release 13 to provide low power wide area connections to a high-volume of devices. With the millions of devices expected to connect to 5G through its massive machine-type communication use case, the strict orthogonality and synchronization requirement of cyclic-prefix orthogonal division multiplexing (CP-OFDM) will demand a very large amount of control information between devices and the core network. To overcome this challenge, we study a new air interface for NB-IoT, which utilizes a non-orthogonal multicarrier transmission scheme. The waveform considered in this work is filter-bank muilticarrier with quadrature amplitude modulation (FBMC-QAM). The loss of orthogonality in FBMC-QAM results in severe levels of intrinsic interference. Iterative detection and decoding (IDD) using low density parity check (LDPC) encoding and decoding is implemented together with iterative interference cancellation (IIC) to remove the inherent interference and improve the BER rate performance. Simulation results indicate that the proposed IDD receiver can effectively improve BER performance under time-varying channels.

AB - Narrowband Internet of Things (NB-IoT) was proposed by 3GPP in Release 13 to provide low power wide area connections to a high-volume of devices. With the millions of devices expected to connect to 5G through its massive machine-type communication use case, the strict orthogonality and synchronization requirement of cyclic-prefix orthogonal division multiplexing (CP-OFDM) will demand a very large amount of control information between devices and the core network. To overcome this challenge, we study a new air interface for NB-IoT, which utilizes a non-orthogonal multicarrier transmission scheme. The waveform considered in this work is filter-bank muilticarrier with quadrature amplitude modulation (FBMC-QAM). The loss of orthogonality in FBMC-QAM results in severe levels of intrinsic interference. Iterative detection and decoding (IDD) using low density parity check (LDPC) encoding and decoding is implemented together with iterative interference cancellation (IIC) to remove the inherent interference and improve the BER rate performance. Simulation results indicate that the proposed IDD receiver can effectively improve BER performance under time-varying channels.

KW - 5G

KW - FBMC-QAM

KW - Internet of Things

KW - Iterative decoding

KW - LPWAN

KW - NB-IoT

KW - Non-orthogonal waveforms

KW - OFDM

UR - http://www.scopus.com/inward/record.url?scp=85071728429&partnerID=8YFLogxK

U2 - 10.1109/EuCNC.2019.8802056

DO - 10.1109/EuCNC.2019.8802056

M3 - Conference contribution

AN - SCOPUS:85071728429

T3 - 2019 European Conference on Networks and Communications, EuCNC 2019

SP - 315

EP - 319

BT - 2019 European Conference on Networks and Communications, EuCNC 2019

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 28th European Conference on Networks and Communications, EuCNC 2019

Y2 - 18 June 2019 through 21 June 2019

ER -