Lookup NU author(s): Mohamad Ahmed,
Dr Charalampos Tsimenidis
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
In this paper, we derive a tight upper bound on the performance of a coded full-duplex (FD) multiple-input multiple-output (MIMO) based bidirectional transceiver. Iterative detection and decoding (IDD)are proposed to suppress the residual self-interference (SI) remaining after applying different stages ofSI cancellation (SIC). IDD comprises an adaptive minimum mean-squared error (MMSE) filter withlog-likelihood ratio (LLR) demapping, while the soft decoder by using soft-in soft-out decoding utilizesthe maximum a posteriori (MAP) algorithm. Furthermore, bit-interleaved coded modulation (BICM)is considered in the presence of additive white Gaussian noise (AWGN) over MIMO frequency non-selective Rayleigh fading channels. Simulation results are presented to demonstrate the bit-error rate(BER) performance as a function of the signal-to-noise ratio (SNR) showing a close match to the SI-free case for the proposed system. Furthermore, we validate our results by deriving a tight upper boundon the performance of the proposed system using rate-1/2 convolutional codes together with M -aryquadrature amplitude modulation (QAM), which asymptotically exhibits a close agreement with thesimulated BER performance. Moreover, extrinsic information transfer (EXIT) chart analysis is used toinvestigate the convergence behaviour of the proposed IDD receiver and to determine the number ofiterations required for this convergence.
Author(s): Ahmed MA, Tsimenidis CC
Publication type: Article
Publication status: Published
Journal: IEEE Transactions on Wireless Communications
Print publication date: 01/01/2018
Online publication date: 03/11/2017
Acceptance date: 24/10/2017
ISSN (print): 1536-1276
ISSN (electronic): 1558-2248
Data Source Location: http://dx.doi.org/10.17634/150074-2
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