Literature Database Entry

amjad2017linear


Muhammad Sohaib Amjad and Ozgur Gurbuz, "Linear Digital Cancellation with Reduced Computational Complexity for Full-Duplex Radios," Proceedings of IEEE Wireless Communications and Networking Conference (WCNC 2017), San Francisco, CA, March 2017.

Abstract

Recent works have demonstrated the feasibility and potential of full-duplex (FD) wireless systems to double the spectral efficiency of half-duplex (HD) systems. Self-interference (SI) cancellation is the key to FD communication and the residual SI is the major factor determining the performance of an FD radio. This paper presents a novel frequency domain based approach, for the reconstruction of SI signal in digital domain. Unlike the existing time domain reconstruction approach, which requires convolution, the proposed approach is simple and uses FFT processing for SI signal reconstruction. By means of computational complexity evaluation, it is shown that the proposed reconstruction approach offers 61\% reduction in the floating point operations required to reconstruct SI signal. Furthermore, via detailed simulations on the performance of digital SI cancellation under fading channels, it is demonstrated that the SI suppression achieved with the proposed approach is not only comparable to existing approach, but with frequency domain SI channel estimates, it can offer 5-7 dB better cancellation under highly frequency selective fading conditions, suggesting its suitability for long range transmission.

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Muhammad Sohaib Amjad
Ozgur Gurbuz

BibTeX reference

@inproceedings{amjad2017linear,
    author = {Amjad, Muhammad Sohaib and Gurbuz, Ozgur},
    title = {{Linear Digital Cancellation with Reduced Computational Complexity for Full-Duplex Radios}},
    booktitle = {IEEE Wireless Communications and Networking Conference (WCNC 2017)},
    year = {2017},
    month = {March},
    address = {San Francisco, CA},
    publisher = {IEEE},
    doi = {10.1109/WCNC.2017.7925764},
   }
   
   

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