Benner
يحيى جاسم . ( مدرس )
كلية الهندسة - الكهرباء
[email protected]
 
 
 
A Non-orthogonal Waveform Design with Iterative Detection and Decoding for Narrowband IoT Applications
تحميل
بحث النوع:
هندسة التخصص العام:
Sumaila Mahama اسم الناشر:
Yahya J. Harbi, Alister G. Burr, David Grace اسماء المساعدين:
IEEE الجهة الناشرة:
EuCNC 2019 conference, sponsored by the IEEE Communications Society and the European Association for Signal Processing, and supported by the European Commission.  
2019 سنة النشر:

الخلاصة

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 machinetype 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 NBIoT, which utilizes a non-orthogonal multicarrier transmission scheme. The waveform considered in this work is filter-bank muilticarrier with quadrature amplitude modulation (FBMCQAM). 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.