Results 21 to 30 of about 23,563 (255)
Toward the era of mobile internet and Internet of Things (IoT), numerous sensors and devices are being introduced and interconnected. To support such amount of data traffic, traditional wireless communication technologies are facing challenges both in ...
Su Hu +5 more
doaj +1 more source
A Framework for Code Division Multiple Access Wireless Power Transfer
The availability of energy is one of the major hindrances to unlocking the massive potential of electronic devices. Powering a highly connected network of devices requires multiple access and a wireless power transfer (WPT) solution that is scalable and ...
Akshay Sarin, Al-Thaddeus Avestruz
doaj +1 more source
Spectral Efficiency Comparison of OFDM and MC-CDMA with Carrier Frequency Offset [PDF]
Inter-carrier interference and multiple access interference due to carrier frequency offset (CFO) are two major factors that deteriorate the performance of orthogonal frequency division multiple access (OFDMA) and multicarrier code division multiple ...
J. Ahmed
doaj
Analysis of Serial Search Based Code Acquisition in the Multiple Transmit/Multiple Receive Antenna Aided DS-CDMA Downlink, [PDF]
—In this paper, we investigate the serial-search-based initial code-acquisition performance of direct-sequence code division multiple access (DS-CDMA) employing multiple transmit/multiple receive antennas when communicating over uncorrelated Rayleigh ...
Hanzo, Lajos, Won, Seung
core +1 more source
A Complementary Code-CDMA-Based MAC Protocol for UWB WPAN System
We propose a new multiple access control (MAC) protocol based on complementary code-code division multiple access (CC-CDMA) technology to resolve collisions among access-request packets in an ultra-wideband wireless personal area network (UWB WPAN ...
Zhu Jiang, Fapojuwo Abraham O.
doaj +2 more sources
CDMA/OTFS Sensing Outperforms Pure OTFS at the Same Communication Throughput
There is a dearth of publications on the subject of spreading-aided Orthogonal Time Frequency Space (OTFS) solutions, especially for Integrated Sensing and Communication (ISAC), even though Code Division Multiple Access (CDMA) assisted multi-user OTFS ...
Hugo Hawkins +3 more
doaj +1 more source
A new spreading scheme for convolutionally coded CDMA communication in a Rayleigh-fading channel [PDF]
There has been increased interest in the use of direct-sequence code-division multiple-access (DS/CDMA) for wireless communication systems. We find that the asymptotic bit-error probability (BEP), P_b, of a convolutionally coded code-division multiple ...
Bang, Young Jo, Kim, Sang Wu
core +1 more source
Multiuser cyclic shift keying spread spectrum underwater acoustic communication
Aiming at the problem of low data rate and high receiver complexity of existing direct sequence spread spectrum code division multiple access (DS-CDMA),a novel code division multiple access (CDMA) using cyclic shift keying (CSK) signaling,namely CSK-CDMA,
Cheng-bing HE +6 more
doaj +2 more sources
Precise bit-error-ratio (BER) analysis of an asynchronous QPSK-modulated direct-sequence code-division multiple-access system using random quaternary spreading sequences for transmission over Rayleigh channels is performed based on the characteristic ...
Hanzo, L, Liu, X
core +1 more source
Information theoretic analysis of LSD scheme [PDF]
In this paper, the capacity region of Low Density Signature Multiple Access Channel (LDS-MAC) is calculated through information theoretic analysis. LDS Code Division Multiple Access (LDS-CDMA) uses spreading sequences of low density for spreading the ...
Hoshyar, R. +3 more
core +1 more source

