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A Tight Upper Bound on the Performance of Iterative Detection and Decoding for Coded Full-Duplex SIMO Systems

Lookup NU author(s): Mohamad Ahmed, Dr Charalampos Tsimenidis

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Abstract

© 2015 IEEE. In this letter, we investigate a coded full-duplex (FD) bidirectional transceiver based on single-input multiple-output (SIMO). Iterative detection and decoding (IDD) are proposed to mitigate the residual self-interference (SI) remaining after applying passive suppression and two stages of SI cancellation (SIC) filters in analog and digital domains. IDD comprises an adaptive minimum mean-squared error (MMSE) filter with log-likelihood ratio (LLR) demapping, while the soft-in soft-out (SISO) decoder utilizes the maximum a posteriori (MAP) algorithm. The proposed system's performance is evaluated in the presence of additive white Gaussian noise (AWGN) over SIMO 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), demonstrating a close match to the SI-free case for the proposed system. Furthermore, we validate our results by deriving a tight upper bound on the performance of the proposed system using rate-1/2 convolutional codes together with quadrature phase-shift keying (QPSK) modulation, which asymptotically exhibits a close agreement with the simulated BER performance.


Publication metadata

Author(s): Ahmed MA, Tsimenidis CC

Publication type: Article

Publication status: Published

Journal: IEEE Communications Letters

Year: 2016

Volume: 20

Issue: 3

Pages: 606-609

Print publication date: 01/03/2016

Online publication date: 21/12/2015

Acceptance date: 01/01/1900

ISSN (print): 1089-7798

ISSN (electronic): 1558-2558

Publisher: Institute of Electrical and Electronics Engineers Inc.

URL: https://doi.org/10.1109/LCOMM.2015.2510649

DOI: 10.1109/LCOMM.2015.2510649


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