Quality of service differentiation in heterogeneous CDMA networks: a mathematical modelling approach
Sign Up to like & getrecommendations! Published in 2018 at "Wireless Networks"
DOI: 10.1007/s11276-016-1411-z
Abstract: Next-generation cellular networks are expected to enable the coexistence of macro and small cells, and to support differentiated quality-of-service (QoS) of mobile applications. Under such conditions in the cell, due to a wide range of… read more here.
Keywords: cdma networks; quality service; differentiation; cdma ... See more keywords
1D-Bernoulli Chaos Sequences Based Collaborative-CDMA: A Novel Secure High Capacity CDMA Scheme
Sign Up to like & getrecommendations! Published in 2017 at "Wireless Personal Communications"
DOI: 10.1007/s11277-017-4287-z
Abstract: Collaborative multi-user transmission and detection is a contemporary technique used for the up-link of code-division multiple access (CDMA). CDMA has contributed much to the field of wireless communication and still addresses many of the capacity… read more here.
Keywords: capacity; cdma; high capacity; secure ... See more keywords
Error Rate Analysis of SIMO-CDMA with Complementary Codes Under Multipath Fading Channels
Sign Up to like & getrecommendations! Published in 2018 at "Wireless Personal Communications"
DOI: 10.1007/s11277-017-4938-0
Abstract: Broadband communication systems of the current generation are likely to offer higher bit rates for delivering high-speed multimedia services to the end users. The achievable capacity and data rate of wireless communication systems are limited… read more here.
Keywords: multipath fading; cdma; analysis; error rate ... See more keywords
UV-induced activation of organic chloramine: Radicals generation, transformation pathway and DBP formation.
Sign Up to like & getrecommendations! Published in 2021 at "Journal of hazardous materials"
DOI: 10.1016/j.jhazmat.2021.126459
Abstract: Organic chloramines of little disinfection efficacy commonly exist in disinfection process (chlor(am)ination) due to the wide presence of organic amines in water, of which N-chlorodimethylamine (CDMA) is a typical one. For the first time, UV… read more here.
Keywords: photolysis; cdma; transformation; formation ... See more keywords
PN Code Acquisition in DS-CDMA Wireless Systems using Smart Antenna and S-CFAR Processor
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3142114
Abstract: Code division multiple access (CDMA) is a class of techniques allowing multiple users to transmit simultaneously to meet the demand of the recently unprecedented revolution in wireless services. In CDMA systems, a unique pseudo-random (PN)… read more here.
Keywords: smart antenna; cfar processor; cdma; acquisition ... See more keywords
Detection of Signals in MC–CDMA Using a Novel Iterative Block Decision Feedback Equalizer
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3211392
Abstract: This paper presents a technique to mitigate multiple access interference (MAI) in multicarrier code division multiple access (MC-CDMA) wireless communications systems. Although under normal circumstances the MC-CDMA system can achieve high spectral efficiency and resistance… read more here.
Keywords: decision feedback; feedback equalizer; iterative block; cdma ... See more keywords
Joint CCI Mitigation and Power Control for MC-DS-CDMA in LEO Satellite Networks
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Internet of Things Journal"
DOI: 10.1109/jiot.2022.3156376
Abstract: We investigate a novel downlink multicarrier direct-sequence code division multiple access (MC-DS-CDMA) resource allocation scheme in the context of low earth orbit (LEO) satellite-ground integrated networks (SGINs). In contrast to the existing MC-DS-CDMA works which… read more here.
Keywords: leo satellite; power; cci mitigation; joint cci ... See more keywords
Precoding for the Sparsely Spread MC-CDMA Downlink With Discrete-Alphabet Inputs
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2016.2551726
Abstract: Sparse signatures have been proposed for the code-division multiple-access (CDMA) uplink to reduce multiuser detection complexity, but they have not yet been fully exploited for its downlink counterpart. In this paper, we propose multicarrier CDMA… read more here.
Keywords: sparse signatures; downlink; cdma; downlink discrete ... See more keywords
Complementary Coded CDMA With Multi-Layer Quadrature Modulation
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2022.3142939
Abstract: In an orthogonal frequency division multiplexing (OFDM) system, cyclic prefix (CP) has to be added to eliminate multipath-induced inter-symbol interference (ISI) with a severely sacrificed bandwidth efficiency. Peak-to-average ratio (PAPR) may impair its performance further… read more here.
Keywords: multi carrier; modulation; multi layer; cdma ... See more keywords
On the study of a quasi-synchronous CDMA-VLC system with two channels.
Sign Up to like & getrecommendations! Published in 2019 at "Optics express"
DOI: 10.1364/oe.27.030249
Abstract: In this paper, a new construction of optical zero correlation zone (OZCZ) code set pair is proposed for quasi-synchronous code division multiple access (QS-CDMA) visible light communication (VLC) system. Owing to its excellent correlation properties… read more here.
Keywords: cdma; code; cdma vlc; vlc ... See more keywords
Dual hop relaying using CDMA and reconfigurable intelligent surfaces (RIS)
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Sensor Networks"
DOI: 10.1504/ijsnet.2021.10039016
Abstract: In this paper, we suggest the use of reconfigurable intelligent surfaces (RIS) in dual hop relaying. There are two hops, the first one uses code division multiple access (CDMA) and the second one uses RIS… read more here.
Keywords: hop relaying; cdma; reconfigurable intelligent; intelligent surfaces ... See more keywords