Results 41 to 50 of about 12,060 (177)

Demonstration of Non-Hermitian Symmetry (NHS) IFFT/FFT Size Efficient OFDM Non-Orthogonal Multiple Access (NOMA) for Visible Light Communication

open access: yesIEEE Photonics Journal, 2020
We propose and experimentally demonstrate a non-orthogonal multiple access (NOMA) visible light communication (VLC) system using non-Hermitian symmetry (NHS) inverse-fast-Fourier-transform (IFFT)/FFT size efficient (SE) orthogonal frequency ...
Assaidah Adnan   +3 more
doaj   +1 more source

Evaluation of Full-Duplex SWIPT Cooperative NOMA-Based IoT Relay Networks over Nakagami-m Fading Channels

open access: yesSensors, 2022
In this paper, we investigate the performance of non-orthogonal multiple access (NOMA)-based full-duplex Internet-of-Things (IoT) relay systems with simultaneous wireless information and power transfer (SWIPT) over Nakagami-m fading channels to improve ...
Tien-Tung Nguyen   +3 more
doaj   +1 more source

Analisa Kinerja Kode Konvolusi Pada Sistem Successive Interference Cancellation Multiuser Detection CDMA dengan Modulasi QPSK Berbasis Perangkat lunak [PDF]

open access: yes, 2011
Pada pembuatan proyek akhir ini dilakukan analisa kinerja kode konvolusi pada sistem Successive Interference Cancellation (SIC) Multi User Detection (MUD) CDMA berbasis perangkat lunak dengan modulasi QPSK. Encoder kode konvolusi yang digunakan pada sisi
Moegiharto, Yoedy, Musfiro, Ais
core  

Coded Slotted ALOHA: A Graph-Based Method for Uncoordinated Multiple Access [PDF]

open access: yes, 2015
In this paper, a random access scheme is introduced which relies on the combination of packet erasure correcting codes and successive interference cancellation (SIC). The scheme is named coded slotted ALOHA.
Chiani, Marco   +2 more
core   +1 more source

Portfolio Entrepreneurs' Strategic Responses to the COVID‐19 Outbreak: The Role of Adaptation, Decision‐Making, Temporality, and Coordination

open access: yesStrategic Change, EarlyView.
ABSTRACT This study explores the immediate responses of portfolio entrepreneurs (PEs) in the Netherlands to the onset of the COVID‐19 pandemic. Employing a longitudinal design, real‐time data were collected from 21 PEs through verbal interviews and open‐ended questionnaires, capturing their initial entrepreneurial reactions.
Tobias Kutzewski, Ingrid A. M. Wakkee
wiley   +1 more source

A novel blind detection algorithm for successive interference cancellation in non‐orthogonal multiple access system

open access: yesThe Journal of Engineering, 2023
This paper considers a Non‐Orthogonal Multiple Access (NOMA) network, in which base station transmits a data packet by multi‐user superposition to a destination. In this system, Successive Interference Cancellation (SIC) receiver is used to eliminate the
Jia Liu, Hao Zhang, Bo Wang
doaj   +1 more source

On the Stability of Contention Resolution Diversity Slotted ALOHA [PDF]

open access: yes, 2011
In this paper a Time Division Multiple Access (TDMA) based Random Access (RA) channel with Successive Interference Cancellation (SIC) is considered for a finite user population and reliable retransmission mechanism on the basis of Contention Resolution ...
Kissling, Christian
core   +2 more sources

When should firms watch for cross‐industry competition? A demand‐side perspective

open access: yesStrategic Management Journal, EarlyView.
Abstract Research Summary Research on competitor identification has primarily focused on intra‐industry competition. However, cross‐industry competitive threats are prevalent and consequential. We adopt a consumer‐oriented perspective to examine how consumer perceptions shape de facto competition across industry boundaries.
Ying Li, Samira Reis, Olga M. Khessina
wiley   +1 more source

Joint User Scheduling and Power optimization in Full-Duplex Cells with Successive Interference Cancellation

open access: yes, 2017
This paper considers a cellular system with a full-duplex base station and half-duplex users. The base station can activate one user in uplink or downlink (half-duplex mode), or two different users one in each direction simultaneously (full-duplex mode).
Erkip, Elza   +2 more
core   +1 more source

Iterative Decoding and Soft Interference Cancellation in Fast Frequency Hopping Multiuser System Using Clipped Combining [PDF]

open access: yes, 2007
Iterative decoding (ID) aided fast frequency hopping (FFH), M-ary frequency shift keying (MFSK) using clipped combining in multiple access (MA) channels is investigated. All users’ data are convolutionally encoded and the encoded bits are interleaved and
Ahmed, S.   +3 more
core   +1 more source

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