Low-density spreading codes for noma systems and a gaussian separability-based design

M Kulhandjian, H Kulhandjian, C D'amours… - IEEE …, 2021 - ieeexplore.ieee.org
Improved low-density spreading (LDS) code designs based on the Gaussian separability
criterion are conceived. We show that the bit error rate (BER) hinges not only on the …

Improve the throughput of M-to-1 free-space optical systems by employing uniquely decodable codes

Y Li, T Geng, S Gao - Chinese Optics Letters, 2023 - opg.optica.org
This paper utilizes uniquely decodable codes (UDCs) in an M-to-1 free-space optical (FSO)
system. Benefiting from UDCs' nonorthogonal nature, the sum throughput is improved. We …

Uniquely decodable multi-amplitude sequence for grant-free multiple-access adder channels

QY Yu, KX Song - IEEE Transactions on Wireless …, 2023 - ieeexplore.ieee.org
Grant-free multiple-access (GFMA) is a valuable research topic, since it can support
multiuser transmission with low latency. This paper constructs novel uniquely-decodable …

Multidisciplinary discussion on 5G from the viewpoint of algebraic combinatorics

M Kulhandjian, L Aslanyan, H Sahakyan… - 2019 Computer …, 2019 - ieeexplore.ieee.org
In this paper, we present some of the interesting questions raised in the “5G and Beyond”
workshop discussions. We propose to explore alternative solutions in other discipline such …

Fast decoder for overloaded uniquely decodable synchronous optical CDMA

M Kulhandjian, H Kulhandjian… - 2019 IEEE Wireless …, 2019 - ieeexplore.ieee.org
In this paper, we propose a fast decoder algorithm for uniquely decodable (errorless) code
sets for overloaded synchronous optical code-division multiple-access (O-CDMA) systems …

Low-complexity decoder for overloaded uniquely decodable synchronous CDMA

M Kulhandjian, H Kulhandjian, C D'Amours… - IEEE …, 2022 - ieeexplore.ieee.org
We consider the problem of designing a low-complexity decoder for antipodal uniquely
decodable (UD)/errorless code sets for overloaded synchronous code-division multiple …

Uniquely decodable ternary codes via augmented Sylvester-Hadamard matrices

M Kulhandjian, H Kulhandjian… - 2021 IEEE International …, 2021 - ieeexplore.ieee.org
In this paper, we consider the problem of designing uniquely decodable (UD) ternary code
sets for low-density spreading code-division multiple-access (LDS-CDMA) systems. The …

[PDF][PDF] Fast decoder for overloaded uniquely decodable synchronous CDMA

M Kulhandjian, C D'Amours, H Kulhandjian… - arXiv preprint arXiv …, 2018 - academia.edu
We consider the problem of designing a fast decoder for antipodal uniquely decodable
(errorless) code sets for overloaded synchronous code-division multiple access (CDMA) …