Results 251 to 260 of about 292,760 (265)
Some of the next articles are maybe not open access.
Learning-Aided Resource Allocation for Pattern Division Multiple Access-Based SWIPT Systems
IEEE Wireless Communications Letters, 2021In this letter, a learning-aided resource allocation scheme based on the constrained Markov decision process (CMDP) is proposed to improve the average network energy efficiency (EE) with the constrained quality of service (QoS) in the pattern division multiple access (PDMA)-based simultaneous wireless information and power transfer (SWIPT) system.
Lixin Li 0001 +6 more
openaire +1 more source
Demonstration of Pattern Division Multiple Access with Message Passing Algorithm in MMW-RoF Systems
Optical Fiber Communication Conference (OFC) 2020, 2020Implementing PDMA with MPA, ambiguous symbol recovery and 4-dB sensitivity improvement was achieved compared to conventional PD-NOMA-SIC. Experimental results show that PDMA enhances application flexibility by pattern variants tailored for different scenarios including grant-free uplinks.
Shuyi Shen +3 more
openaire +2 more sources
2018 IEEE 5G World Forum (5GWF), 2018
Non-orthogonal multiple access (NOMA) techniques are an effective tool for increasing the user capacity in 5G networks. In NOMA users occupy a same resource element in any given time, and user separation is achieved through different interference cancellation strategies.
Svetislav Maric, Lazar Z. Velimirovic
openaire +1 more source
Non-orthogonal multiple access (NOMA) techniques are an effective tool for increasing the user capacity in 5G networks. In NOMA users occupy a same resource element in any given time, and user separation is achieved through different interference cancellation strategies.
Svetislav Maric, Lazar Z. Velimirovic
openaire +1 more source
INVESTIGATION OF NOISE IMMUNITY OF NON-ORTHOGONAL MULTIPLE ACCESS SYSTEMS WITH PATTERN DIVISION
Электросвязь, 2023Развитие новых сценариев использования систем беспроводной связи таких, как интернет вещей и межмашинная связь М2М, повышает требования к ёмкости сети связи. К сожалению, потенциальные возможности методов ортогонального множественного доступа (OMA, Orthogonal Multiple Access) практически исчерпаны в технологиях сотовой связи, предшествующих пятому ...
openaire +1 more source
Compressed Sensing Algorithm for Pattern Division Multiple Access (PDMA) in 5G Radio Networks
2018 International CET Conference on Control, Communication, and Computing (IC4), 2018In this paper, a 5G technique called Pattern Division Multiple Access (PDMA) using Compressed Sensing Algorithm is put forward for communication systems. A resource group is defined using PDMA patterns with reference to either time or frequency for data transmission. Users sharing the same resources are differentiated by utilizing those set of patterns,
Kavya Vinod, Renu Jose
openaire +1 more source
2018 3rd IEEE International Conference on Recent Trends in Electronics, Information & Communication Technology (RTEICT), 2018
In this paper, the Compressed Sensing Algorithm based 5G technique called Pattern Division Multiple Access (PDMA) is proposed for communication systems. A resource group is defined using PDMA patterns in terms of either time or frequency for data transmission.
Kavya Vinod, Renu Jose
openaire +1 more source
In this paper, the Compressed Sensing Algorithm based 5G technique called Pattern Division Multiple Access (PDMA) is proposed for communication systems. A resource group is defined using PDMA patterns in terms of either time or frequency for data transmission.
Kavya Vinod, Renu Jose
openaire +1 more source
Optical Fiber Technology, 2018
Abstract A demand for high spectral efficiency requires multiple access within a single wavelength, but the uplink signals are significantly degraded because of optical beat interference (OBI) in intensity modulation/direct detection system. An optical pulse division multiplexing (OPDM) technique was proposed that could effectively reduce the OBI via
Sun-Young Jung +2 more
openaire +1 more source
Abstract A demand for high spectral efficiency requires multiple access within a single wavelength, but the uplink signals are significantly degraded because of optical beat interference (OBI) in intensity modulation/direct detection system. An optical pulse division multiplexing (OPDM) technique was proposed that could effectively reduce the OBI via
Sun-Young Jung +2 more
openaire +1 more source
ICC 91 International Conference on Communications Conference Record, 2002
Families of codes that are applicable to optical synchronous spread-spectrum code-division multiple-access (CDMA) communication systems as well as to arbitrary synchronous time-hopping-based spread-spectrum CDMA systems are introduced. The construction of the proposed codes is based on number theoretic results on quadratic congruences, and on a subset ...
Z. Kostic, E.L. Titlebaum, S.V. Maric
openaire +1 more source
Families of codes that are applicable to optical synchronous spread-spectrum code-division multiple-access (CDMA) communication systems as well as to arbitrary synchronous time-hopping-based spread-spectrum CDMA systems are introduced. The construction of the proposed codes is based on number theoretic results on quadratic congruences, and on a subset ...
Z. Kostic, E.L. Titlebaum, S.V. Maric
openaire +1 more source
IEEE Transactions on Green Communications and Networking
Jianguo Yao 0001 +3 more
openaire +1 more source
Jianguo Yao 0001 +3 more
openaire +1 more source