Results 61 to 70 of about 2,226 (173)
, 2006 In this contribution, we study a reduced-complexity multiuser detection aided multicarrier direct-sequence code-division multiple-access (MC DS-CDMA) scheme, which employs both time (T)-domain and frequency (F)-domain spreading.
Wei, H., Yang, L-L., Hanzo, L.
core
A Novel FBMC/QAM Scheme to Eliminate the Error Floor in Multipath Channels
IET Communications, Volume 19, Issue 1, January/December 2025.This paper proposes a cyclic prefix–based filter bank multicarrier with quadrature amplitude modulation (CP‐FBMC/QAM) scheme to eliminate the error floor and simplify the receiver in multipath fading channels. Moreover, to avoid the increase of out‐of‐band (OOB) radiation caused by the CP insertion, we propose a prototype filter optimization problem ...
Yufeng Zhang, Xueqin Chen
wiley +1 more source
Performance Enhancement of Indoor VLC Systems Using DPSS‐Based DCO‐GFDM Modulation
IET Communications, Volume 19, Issue 1, January/December 2025.VLC is a promising solution for future wireless communication systems due to its high data rate, wide bandwidth, and enhanced security features. However, challenges such as high PAPR and OOB spectral leakage limit its performance. In this study, we propose the integration of DPSS with DCO‐GFDM to enhance the performance of indoor VLC systems.
Amin Emami +2 more
wiley +1 more source
Performance of Broadband Multicarrier DS-CDMA using Space-Time Spreading-Assisted Transmit Diversity
, 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
A Hybrid Single-Carrier/Multicarrier Transmission Scheme with Power Allocation
EURASIP Journal on Wireless Communications and Networking, 2007 We propose a flexible transmission scheme which easily allows to switch between cyclic-prefixed single-carrier (CP-SC) and cyclic-prefixed multicarrier (CP-MC) transmissions. This scheme takes advantage of the best characteristic of each scheme, namely,
Luc Féty +2 more
doaj +1 more source
Coherent and Differential Downlink Space-Time Steering Aided Generalised Multicarrier DS-CDMA
, 2007 This paper presents a generalised MultiCarrier Direct Sequence Code Division Multiple Access (MC DS-CDMA) system invoking smart antennas for improving the achievable performance in the downlink.
El-Hajjar, Mohammed +3 more
core
On multicarrier signal transmission for high-voltage power lines
, 2005 Orthogonal frequency division multiplexing (OFDM), as a type of multicarrier modulation, is becoming one of the preferred communication schemes to achieve reliable high-rate data transmission.
RAHELI, Riccardo +3 more
core +1 more source
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.
core
CDMA Transmission with Complex OFDM/OQAM
EURASIP Journal on Wireless Communications and Networking, 2007 We propose an alternative to the well-known multicarrier code-division multiple access (MC-CDMA) technique for downlink transmission by replacing the conventional cyclic-prefix orthogonal frequency division multiplexing (OFDM) modulation by an advanced ...
Chrislin Lélé +3 more
doaj +1 more source
Software-Defined-Radio-Assisted Adaptive Broadband Frequency Hopping Multicarrier DS-CDMA
, 2002 Against the backdrop of the explosive expansion of the Internet and the continued dramatic increase in demand for high-speed multimedia wireless services, there is an urgent demand for flexible, bandwidth-efficient transceivers.
Yang, L-L., Hanzo, L.
core