Results 191 to 200 of about 7,314 (217)

DOA-Matrix Decoder for STBC-MC-CDMA Systems

2005
The uplink of a space-time block coded multicarrier modulation code division multiple access (MC-CDMA) system equipped with a uniform linear array (ULA) at the base station in macrocell is studied and the base station antenna array is considered largely correlated because of insufficient antenna spacing and lack of scatterings. Under the circumstances,
Yanxing Zeng, Qinye Yin 0001, Le Ding, Jianguo Zhang   +3 more
openaire   +1 more source

MC‐CDMA with quadrature spreading for wireless communication systems

European Transactions on Telecommunications, 1998
AbstractMulti‐Carrier CDMA (MC‐CDMA) systems using the Orthogonal Frequency Division Division Multiple Access (OFDM) technique resolve the frequency selectivity in multipath fading channels and have good spectral properties. The addition of a spread spectrum component to the OFDM introduces a frequency diversity gain that can combat deep multipath ...
openaire   +1 more source

PAPR Reduction Techniques for MC-CDMA System

2023 IEEE 13th Annual Computing and Communication Workshop and Conference (CCWC), 2023
Moftah Ali, Raveendra K. Rao, Vijay Parsa   +2 more
openaire   +1 more source

Performance Analysis of DS-CDMA and MC-CDMA Systems

2018 9th IEEE Annual Ubiquitous Computing, Electronics & Mobile Communication Conference (UEMCON), 2018
In this paper, a performance analysis of DS-CDMA and MC-CDMA is conducted. With DS-CDMA, data is spread using a spreading sequence in the time domain. In contrast, with MC-CDMA, data is spread over different sub-carriers using a spreading sequence in the frequency domain. The comparison of DS-CDMA and MC-CDMA is presented under an AWGN channel.
openaire   +1 more source

A cooperation strategy for MC-CDMA systems

2006
In this paper, a cooperation protocol for MC-CDMA systems is proposed and validated by means of computer simulations. The use of different equalization techniques is compared in several transmission scenarios. Network configurations with more information sources and relays are considered too.
ASSALINI, ANTONIO, D. MALIMPENSA, PUPOLIN, SILVANO   +2 more
openaire   +1 more source

Capacity of DS/CDMA communication systems with optimum spectral overlap

IEEE Communications Letters, 1998
Sang Wu Kim
exaly  

Successive interference cancellation in asynchronous CC-CDMA systems under Rician fading channels

Telecommunication Systems, 2019
X Ascar Davix, D Judson
exaly  

Direct-detection optical synchronous CDMA systems with double optical hard-limiters using modified prime sequence codes

IEEE Journal on Selected Areas in Communications, 1996
Tomoaki Ohtsuki
exaly  

A Survey on Complementary-Coded MIMO CDMA Wireless Communications

IEEE Communications Surveys and Tutorials, 2015
Hsiao-Hwa Chen, Weixiao Meng
exaly  

Blind multiuser channel estimation in asynchronous CDMA systems

IEEE Transactions on Signal Processing, 1997
M Torlak, Guanghan Xu
exaly