Results 11 to 20 of about 242 (110)
Simulation of MC-DS-CDMA-System Based on: Wavelet and Slantlet Transforms over Wireless Channel
In this paper two proposed schemes for improving the performance form the Bit Error Rate (BER) view point were proposed for Multicarrier-Direct-Sequence- Code Division Multiple Access (MC-DS-CDMA) system in wireless channel. The conventional MC-DS-CDMA-
Ahmed Abdel Hadi Fadhel
doaj +4 more sources
Detection of Signals in MC–CDMA Using a Novel Iterative Block Decision Feedback Equalizer
This paper presents a technique to mitigate multiple access interference (MAI) in multicarrier code division multiple access (MC-CDMA) wireless communications systems.
Kalapraveen Bagadi +13 more
doaj +1 more source
Performance of Multicarrier Multicode Code-Division Multiple Access (MC/MCD-CDMA) systems can be improved significantly by using Wavelet Packets (WPs) as subcarriers instead of a~sinusoidal function.
Maryam Mahmoud Akho-Zahieh +1 more
doaj +1 more source
Performance Evaluation of Wavelet Packet Based MC-CDMA and HHT Based MC-CDMA System
The main aim of this paper is to investigate the performance of multi-carrier code division multiple access (MC-CDMA) technique, which has gain much attention due to its high frequency spectrum efficiency and high data rate transmission and makes the wireless communication more reliable and efficient.
Rajni Jainwal, Virendra K.Verma
openaire +1 more source
Identity‐Enabled CDMA LiDAR for Massively Parallel Ranging with a Single‐Element Receiver
A novel LiDAR system integrates CDMA modulation with a single‐element detector to achieve massive channel parallel 3D imaging. By using a user identification code and a correlation‐based feedback loop, it overcomes signal collisions and the near‐far problem.
Yixiu Shen, Zi Heng Lim, Guangya Zhou
wiley +1 more source
Spatial multiplexed coded MC-CDMA with iterative receiver [PDF]
In this paper, the combination of spatial multiplexing with coded Multi-Carrier Code Division Multiplex Access (MC-CDMA) for a Multiple Input Multiple Output (MIMO) Rayleigh fading multipath channel is considered. A practical receiver structure performing iteratively MIMO detection, multi-user despreading and channel decoding is presented.
Bouvet, Pierre-Jean +3 more
openaire +2 more sources
Layered halide double perovskites have emerged as promising alternatives to toxic lead‐based low‐dimensional perovskite materials for more sustainable optoelectronics. Their molecular design and its impact on the material characteristics, as well as the resulting functionality, is reviewed while discussing challenges and opportunities for future ...
Maryam Ghasemi +4 more
wiley +1 more source
Space-Time Coded MC-CDMA: Blind Channel Estimation, Identifiability, and Receiver Design
Integrating the strengths of multicarrier (MC) modulation and code division multiple access (CDMA), MC-CDMA systems are of great interest for future broadband transmissions. This paper considers the problem of channel identification and signal combining/
Li Hongbin, Sun Wei
doaj +1 more source
This paper describes two blind algorithms for multicarrier code division multiple access (MC-CDMA) system equalization. In order to identify, blindly, the impulse response of two practical selective frequency fading channels called broadband radio ...
Said Safi +3 more
doaj +1 more source
Revealing Chronotypes Across Aquatic Species Using Acoustic Telemetry
ABSTRACT Acoustic telemetry offers valuable opportunities to investigate individual variability in circadian‐related and other behaviours and how environmental cues shape these patterns in wild fish populations. However, this potential has not yet been fully exploited.
Martina Martorell‐Barceló +27 more
wiley +1 more source

