Results 71 to 80 of about 18,357,996 (200)
Theoretical Investigation into Spectral Coexistence of CDMA and TDMA Systems
The Journal of Engineering Research, 2008 The scarcity of available radio spectrum presently limits the extension of modern multimedia systems. This paper presents a theoretical investigation into the possibility of using a frequency overlay of a narrowband Code Division Multiple Access (CDMA ...
A.M. Abbosh, M. A. Shehathah
doaj +1 more source
, 2003 A spatial diversity reception assisted multiuser code-division multiple-access detector based on genetic algorithms (GAs) is proposed. Two different GA-based individual-selection strategies are considered. In our first approach, the so-called individuals
Hanzo, L., Yen, K.
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A redundant residue number system assisted multicarrier direct-sequence code-division dynamic multiple-access (RRNS MC/DS-CDDMA) scheme is proposed for application in cognitive radios (CRs).
Zhang, Shuo +2 more
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Block-Adaptive Kernel-Based CDMA Multiuser Detector
, 2002 The paper investigates the application of a recently introduced learning technique, called the relevance vector machine (RVM) to construct a block-adaptive kernel-based nonlinear multiuser detector (MUD) for direct-sequence code-division multiple-access (
Hanzo, L., Chen, S.
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Spectral-amplitude encoding CDMA system based on high-speed electronic encoder/ decoder structures
Revista Facultad de Ingeniería Universidad de Antioquia, 2016 A new method for high-speed Code Division Multiple Access (CDMA) systems that lies on the analogue performance of distributed-based transversal filters is proposed.
Jorge Aguilar-Torrentera +3 more
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Information, 2015 Multi-user detection is an effective method to reduce multiple access interference in code division multiple access (CDMA) systems. This paper discusses a signal subspace based blind adaptive multiuser detector and a Kalman filtering blind adaptive ...
Liqing Zhou +5 more
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Time-Hopping Multicarrier Code-Division Multiple-Access
, 2006 A time-hopping multicarrier code-division multiple-access (TH/MC-CDMA) scheme is proposed and investigated. In the proposed TH/MC-CDMA each information symbol is transmitted by a number of time-domain pulses with each time-domain pulse modulating a ...
Yang, L.-L., Lie-liang Yang
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Compensation of Fading Channels Using Partial Combining Equalizer in MC-CDMA Systems
Journal of Telecommunications and Information Technology, 2017 In this paper the performance of a partial combining equalizer for Multi-Carrier Code Division Multiple Access (MC-CDMA) systems is analytically and numerically evaluated. In the part of channel identification, authors propose a blind algorithm based on
Mohammed Zidane +2 more
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Performance of Generalized Multicarrier DS-CDMA over Nakagami-$m$ Fading Channels
, 2002 A class of generalized multicarrier direct sequence code-division multiple-access (MC DS-CDMA) schemes is defined and its performance is considered over multipath Nakagamifading channels. The spacing between two adjacent subcarriers of the generalized MC
Yang, L-L., Hanzo, L.
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High performance mixed optical CDMA system using ZCC code and multiband OFDM
EPJ Web of Conferences, 2017 In this paper, we have proposed a high performance network design, which is based on mixed optical Code Division Multiple Access (CDMA) system using Zero Cross Correlation (ZCC) code and multiband Orthogonal Frequency Division Multiplexing (OFDM) called ...
Nawawi N. M. +3 more
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