Results 51 to 60 of about 36,530 (229)

The Alamouti Scheme with CDMA-OFDM/OQAM

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
This paper deals with the combination of OFDM/OQAM with the Alamouti scheme. After a brief presentation of the OFDM/OQAM modulation scheme, we introduce the fact that the well-known Alamouti decoding scheme cannot be simply applied to this modulation ...
Pierre Siohan   +2 more
doaj   +1 more source

ANALISIS PREFERENSI PILIHAN KONSUMEN TERHADAP KARTU CDMA PRABAYAR

open access: yesJ@ti Undip: Jurnal Teknik Industri, 2012
Kartu CDMA Prabayar merupakan alternatif lain bagi pengguna telpon seluler, setelah GSM. Penelitian ini ditujukan untuk mengetahui preferensi konsumen pemakai kartu CDMA Prabayar dan mengidentifikasi prioritas faktor pilihan konsumen dalam memilih kartu ...
Uyuunul Mauidzoh
doaj   +1 more source

Physical Layer Built-In Security Analysis and Enhancement Algorithms for CDMA Systems

open access: yesEURASIP Journal on Wireless Communications and Networking, 2007
Historically developed for secure communication and military use, CDMA has been identified as a major modulation and multiple-access technique for 3G systems and beyond.
Li Tongtong, Ling Qi, Ren Jian
doaj   +2 more sources

Carrier Sense Random Packet CDMA Protocol in Dual-Channel Networks [PDF]

open access: yesRadioengineering, 2015
Code resource wastage is caused by the reason that many hopping frequency (FH) sequences are unused, which occurs under the condition that the number of the actual subnets needed for the tactical network is far smaller than the networking capacity of ...
C. Du   +5 more
doaj  

CDMA Transmission with Complex OFDM/OQAM

open access: yesEURASIP 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

Multi-code Multicarrier CDMA: Performance Analysis

open access: yesJournal of Communications Software and Systems, 2006
A new multi-code multicarrier code division multiple access (MC-MC-CDMA) system is proposed and analyzed in afrequency selective fading channel. By allowing each user to transmit an M-ary code sequence, the proposed MC-MC-CDMA system can support various ...
Taeyoon Kim   +3 more
doaj  

Single Carrier Cyclic Prefix-Assisted CDMA System with Frequency Domain Equalization for High Data Rate Transmission

open access: yesEURASIP Journal on Wireless Communications and Networking, 2004
Multiple-access interference and interfinger interference limit the capacity of conventional single-carrier DS-CDMA systems. Even though multicarrier CDMA posses the advantages of conventional CDMA and OFDM, it suffers from two major implementation ...
Madhukumar A. S.   +3 more
doaj   +2 more sources

Generalized Multicarrier CDMA: Unification and Linear Equalization

open access: yesEURASIP Journal on Advances in Signal Processing, 2005
Relying on block-symbol spreading and judicious design of user codes, this paper builds on the generalized multicarrier (GMC) quasisynchronous CDMA system that is capable of multiuser interference (MUI) elimination and intersymbol interference (ISI ...
Wang Zhengdao   +2 more
doaj   +1 more source

UNJUK KERJA PENYAMA TURBO PADA SISTEM CODE DIVISION MULTIPLE ACCESS (CDMA)

open access: yesTechne, 2012
Penelitian ini bertujuan mengetahui unjuk kerja penyama turbo pada sistem Code Division Multiple Access (CDMA) dalam mengurangi BER akibat pengaruh interferensi.
Eva Yovita Dwi Utami
doaj  

Home - About - Disclaimer - Privacy