Zobrazeno 1 - 10
of 569
pro vyhledávání: '"Constellation Design"'
Publikováno v:
Digital Communications and Networks, Vol 10, Iss 5, Pp 1471-1479 (2024)
To resist various types of jamming in wireless channels, appropriate constellation modulation is used in wireless communication to ensure a low bit error rate. Due to the complexity and variability of the channel environment, a simple preset constell
Externí odkaz:
https://doaj.org/article/f57df38e300243b0bd49c88794012f26
Publikováno v:
Guangtongxin yanjiu, Pp 23000701-23000706 (2024)
【Objective】The use of random mapping and traditional constellations in Optical-Orthogonal Frequency Division Multiplexing (O-OFDM) - Index Modulation (IM) system cannot reach the optimal Bit Error Rate (BER) performance. Therefore, a step-by-step
Externí odkaz:
https://doaj.org/article/f2abd25d7acf4eb5b5659994cb65a2b6
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
Jia-Ning Guo, Jian Zhang
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 4, Pp 1-10 (2024)
As a wireless communication which combines illumination and communication, visible light communication (VLC) has attracted great attention. In indoor VLC systems, multiple illumination devices are commonly employed, forming a natural multi-input mult
Externí odkaz:
https://doaj.org/article/81e49a81b8064b9e8bf166d952226e6c
Publikováno v:
Tongxin xuebao, Vol 44, Pp 61-77 (2023)
LEO satellite constellation (LSC) offers seamless and fast connectivity for non-terrestrial network (NTN).However, the lack of QoS guarantees for users significantly impacts the performance of the NTN system.Considering multi-QoS metrics, a capacity
Externí odkaz:
https://doaj.org/article/28433fcfcdf648abaeecff7281d179f7
Publikováno v:
Remote Sensing, Vol 16, Iss 19, p 3667 (2024)
Low Earth orbit (LEO) satellites have unique advantages in navigation because of their high signal intensity and rapid geometric changes in a short period. In order to solve the problem of constellation performance degradation after a potential failu
Externí odkaz:
https://doaj.org/article/a3c990ead81a41a6bbac3734afb89493
Publikováno v:
Dianxin kexue, Vol 39, Pp 90-100 (2023)
With the growing maturity of millimeter wave technology and high-throughput satellite communication technology, as well as the urgent need for global broadband communication services, the construction of LEO giant communication constellation has attr
Externí odkaz:
https://doaj.org/article/ac825f4441874c9e8039fae35240ac11
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 4, Pp 2343-2356 (2023)
Beyond fifth generation (B5G) / sixth generation (6G) wireless systems require full utilization of all spectrums. However, hardware devices operating in the high-frequency bands bring a series of non-ideal behaviors, including nonlinear distortion ca
Externí odkaz:
https://doaj.org/article/804799022f324ea29fe82d3fcc65fb14
Publikováno v:
IEEE Access, Vol 11, Pp 11749-11765 (2023)
In this paper, we investigate a transmitter and receiver design for a single-user massive SIMO (single-input multiple-output) system with 1-bit analog-to-digital converters (ADCs) at the base station (BS), where the user adopts higher-order modulatio
Externí odkaz:
https://doaj.org/article/165c3e5f4b69473cbf64ace1a8acd874
Publikováno v:
Open Astronomy, Vol 31, Iss 1, Pp 318-326 (2022)
This study presented a mathematical description of an arbitrary shape area, and after analyzing the characteristics of the near-polar orbital co-ground trajectory constellation that satisfies the revisit interval constraint, an optimization model of
Externí odkaz:
https://doaj.org/article/c50c3e79f4584bfcb9344f80159b0ddf