Results 61 to 70 of about 27,401 (218)

Quantum internet using code division multiple access

, 2013
A crucial open problem in large-scale quantum networks is how to efficiently transmit quantum data among many pairs of users via a common data-transmission medium.
A Acín, A Nevet, A Ortigosa-Blanch, AS Holevo, C-W Chou, CRS Williams, D Felinto, DF Phillips, DN Matsukevich, G Brassard, G Brassard, G Smith, HJ Kimble, I Buluta, I Devetak, J Clarke, J Ohtsubo, J Zhang, J-W Pan, JI Cirac, JQ You, JQ You, K Yoshino, L Aparicio, L Czekaj, LM Duan, M Heurs, M Keyl, M Tsang, M Zhang, MD Lukin, N Gisin, N Sangouard, P Townsend, R Blatt, S Lloyd, S-B Shim, T Carmon, X Maitre, XB Wang, XY Lü, YF Xiao   +41 more
core   +1 more source

Local Multicoloring Algorithms: Computing a Nearly-Optimal TDMA Schedule in Constant Time [PDF]

, 2009
The described multicoloring problem has direct applications in the context of wireless ad hoc and sensor networks. In order to coordinate the access to the shared wireless medium, the nodes of such a network need to employ some medium access control (MAC)
Kuhn, Fabian
core   +4 more sources

DDMA Signal Separation Method Based on Frame‐Interleaved Binary Mask

Electronics Letters, Volume 61, Issue 1, January/December 2025.
To solve the problem of multi‐target separation failure at the same distance in empty‐band Doppler division multiple access system, we propose the frame‐interleaved binary mask method. This method can effectively separate multiple targets in above scenario. ABSTRACT Millimetre‐wave multiple‐input multiple‐output (MIMO) radar has many advantages such as
Lu Qian, Yuanzhe Li, Xiaohuan Li, Lin Zou   +3 more
wiley   +1 more source

Analysis of 5G New Radio Uplink Signals on an Analogue-RoF System Based on DSP-Assisted Channel Aggregation

Applied Sciences, 2018
The 3rd Generation Partnership Project (3GPP) is in the process of developing 5th generation (5G) radio access technology, the so-called new radio (NR). The aim is to achieve the performance requirements forIMT-2020 radio interface technology.
Befekadu D. Mengesha, Pablo Torres-Ferrera, Roberto Gaudino   +2 more
doaj   +1 more source

Impact of Mobility on the Sum Rate of NB-OFDMA Based Mobile IoT Networks

, 2016
In future Internet of Things (IoT) networks, the explosive growth of mobile devices compel us to reconsider the effectiveness of the current frequency-division multiple access (FDMA) schemes.
Jiao, Chunxu, Zhang, Zhaoyang, Zhong, Caijun   +2 more
core   +1 more source

Chained Turbo Equalization for SC-FDMA Systems without Cyclic Prefix [PDF]

, 2010
This paper proposes a novel Single Carrier Frequency Division Multiple Access (SC-FDMA) System without Cyclic Prefix based on the Chained Turbo Equalization (CHATUE) algorithm, which connects turbo equalizers neighboring in time to eliminate the Inter ...
Anwar, Khoirul, Matsumoto, Tad, Zhuo, Hui   +2 more
core   +1 more source

Power Allocation for Uplink FDMA‐RSMA in LEO Satellite Networks

Electronics Letters, Volume 61, Issue 1, January/December 2025.
This paper proposes a rate‐splitting multiple access‐frequency division multiple access integrated approach for low Earth orbit satellites to maximize concurrent IoT user access while improving spectral efficiency. The optimization problem incorporates practical constraints and is solved via successive convex approximation and branch‐and‐bound ...
Xiaodi Yu, Tao Hong, Gengxin Zhang
wiley   +1 more source

Enhance Capacity Region of Multi‐Class IIoT Network by Applying Entanglement Assistance Protocol

IET Quantum Communication, Volume 6, Issue 1, January/December 2025.
ABSTRACT In the Industrial Internet of Things (IIoT) context, heterogeneous IIoT nodes need diverse performance requirements, including throughput and quality of service (QoS). These IIoT nodes transmit data over a common shared communication medium. The existing critical challenge arises in efficiently scheduling access to this shared medium among a ...
Doaa Subhi, Laszlo Bacsardi
wiley   +1 more source

Enhanced performance of secondary surveillance radar system in dense UAV environments using CDMA techniques

IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.
In future battlefield scenarios, the existing secondary radar systems are confronted with the problem of excessive platform density. This paper explores integrating CDMA technology with the ALOHA algorithm to increase the target identification probability and shorten the target identification time.
Haonan Chen, Rui Guo, Zengping Chen
wiley   +1 more source

Comparison of CDMA and FDMA for the MobileStar(sm) system [PDF]

Spread-spectrum code division multiple access (CDMA) and single channel per carrier frequency division multiple access (FDMA) systems are compared for spectrum efficiency.
Gilhousen, K. S., Jacobs, I. M., Murphy, T., Renshaw, K., Weaver, L. A.   +4 more
core   +1 more source