Reference : Integration of backscatter communication with multi-cell NOMA: a spectral efficiency ...
Scientific congresses, symposiums and conference proceedings : Poster
Engineering, computing & technology : Electrical & electronics engineering
Security, Reliability and Trust
http://hdl.handle.net/10993/53458
Integration of backscatter communication with multi-cell NOMA: a spectral efficiency optimization under imperfect SIC
English
[en] Integration of backscatter communication with multi-cell NOMA: a spectral efficiency optimization under imperfect SIC
Khan, Wali Ullah mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom >]
Lagunas, Eva mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom >]
Mahmood, Asad mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom >]
Ali, Zain mailto []
Chatzinotas, Symeon mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom >]
Ottersten, Björn mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
3-Nov-2022
Yes
International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD)
02-11-2022 to 04-11-2022
IEEE
Paris
France
[en] Backscatter Communications ; Non-orthogonal Multiple Access ; Imperfect Successive Interference Cancellation
[en] Future wireless networks are expected to connect large-scale low-powered communication devices using the available spectrum resources. Backscatter communications (BC) is an emerging technology towards battery-free transmission in future wireless networks by leveraging ambient radio frequency (RF) waves that enable communications among wireless devices. Non-orthogonal multiple access (NOMA) has recently drawn significant attention due to its high spectral efficiency. The combination of these two technologies can play an important role in the development of future networks. This paper proposes a new optimization approach to enhance the spectral efficiency of nonorthogonal multiple access (NOMA)-BC network. Our framework simultaneously optimizes the power allocation of base station and reflection coefficient (RC) of the backscatter device in each cell under the assumption of imperfect signal decoding. The problem of spectral efficiency maximization is coupled on power and RC which is challenging to solve. To make this problem tractable, we first decouple it into two subproblems and then apply the decomposition method and Karush-Kuhn-Tucker conditions to obtain the efficient solution. Numerical results show the performance of the proposed NOMA-BC network over the pure NOMA network without BC.
Researchers ; Professionals ; Students ; General public ; Others
http://hdl.handle.net/10993/53458
10.1109/CAMAD55695.2022.9966913
https://ieeexplore.ieee.org/abstract/document/9966913

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