Results 71 to 80 of about 637,226 (201)

Performance of Broadband Multicarrier DS-CDMA using Space-Time Spreading-Assisted Transmit Diversity

open access: yes, 2005
In this contribution multicarrier direct-sequence code-division multiple-access (MC DS-CDMA) using space–time spreading (STS)-assisted transmit diversity is investigated in the context of broadband communications over frequency-selective Rayleigh-fading ...
Yang, L-L., Hanzo, L.
core   +1 more source

A General Analytical Formulation for LCL Filter Design for Grid-Connected PWM-Driven Cascaded H-Bridge Inverters

open access: yesIEEE Open Journal of Power Electronics
This paper proposes a general analytical formulation for LCL filter design for grid-connected PWM-driven cascaded H-bridge inverters. The novelty of this work deals with providing some easy-of-use analytical expressions that allow for properly sizing the
Giuseppe Schettino   +5 more
doaj   +1 more source

CP-Based SBHT-RLS Algorithms for Tracking Channel Estimates in Multicarrier Modulation Systems

open access: yesJournal of Electrical and Computer Engineering, 2012
Cyclic prefix (CP) in multicarrier modulation systems has been considered as an alternative to the training sequences to track channel estimates. In this paper, two new algorithms are developed that exploit CP from their data detection part and employ ...
H. Ali
doaj   +1 more source

Downlink Steered Space-Time Spreading Assisted Generalised Multicarrier DS-CDMA Using Sphere-Packing-Aided Multilevel Coding

open access: yes, 2007
This paper presents a novel generalised Multi-Carrier Direct Sequence Code Division Multiple Access (MC DS-CDMA) system invoking smart antennas for improving the achievable performance in the downlink, as well as employing multi-dimensional Sphere ...
Mohammed El-hajjar   +9 more
core   +2 more sources

Two novel nonlinear companding schemes with iterative receiver to reduce PAPR in multi-carrier modulation systems [PDF]

open access: yes, 2006
Companding transform is an efficient and simple method to reduce the Peak-to-Average Power Ratio (PAPR) for Multi-Carrier Modulation (MCM) systems.
Guo, P, Yao, W, Qu, D, Song, Y, Jiang, T
core   +1 more source

Joint Transmitter–Receiver Frequency-Domain Equalization in Generalized Multicarrier Code-Division Multiplexing Systems

open access: yes, 2010
Joint transmitter–receiver optimization in generalized multicarrier code-division multiplexing (GMC-CDM) systems is investigated in this paper. The optimization consists of a one-tap post-frequency-domain equalizer (post-FDE) and a one–tap pre-FDE. While
Tingting Liu   +5 more
core   +2 more sources

Reed Solomon Coding in Orthogonal Frequency Division Multiplexing (OFDM) Communication Systems

open access: yesJournal of Engineering and Sustainable Development, 2012
This paper presents a MATLAB simulation that has been developed to investigate Orthogonal Frequency Division Multiplexing (OFDM) communication system using Reed Solomon (RS) Coding process. The efficient encoding and decoding algorithm, and the powerful
Kadhum Al-Majdi   +2 more
doaj  

Design and Characteristic Analysis of Multicarrier Chaotic Phase Coded Radar Pulse Train Signal

open access: yesInternational Journal of Antennas and Propagation, 2014
By introducing phase code into multicarrier orthogonal frequency division multiplex signal, the multicarrier phase coded (MCPC) radar signal possesses a good spectrum utilization rate and can achieve a good combination of narrowband and wideband ...
Qiongdan Huang   +3 more
doaj   +1 more source

Performance of Generalized Multicarrier DS-CDMA over Nakagami-$m$ Fading Channels

open access: yes, 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.
core   +1 more source

Design of a Baseband Transceiver for Multicarrier CDMA Communications

open access: yesEURASIP Journal on Advances in Signal Processing, 2005
Multicarrier systems have become popular for their spectral efficiency and robustness against frequency-selective fading. Multicarrier code-division multiple access (MC-CDMA) is a technique that combines the advantage of multicarrier modulation with ...
Tsai Pei-Yun   +2 more
doaj   +1 more source

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