Results 1 to 10 of about 23,651 (213)
Carrier Sense Random Packet CDMA Protocol in Dual-Channel Networks [PDF]
Radioengineering, 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 +4 more sources
Combined source-channel coding for the transmission of still images over a code division multiple access (CDMA) channel [PDF]
IEEE Communications Letters, 1998 This letter considers a combined source-channel coding scheme for image transmission over the uplink of a wireless IS-95 code division multiple access (CDMA) channel using discrete cosine transform. By adjusting the dimension of the orthogonal signaling scheme, we trade the system error-correction capability for a faster bit rate.
E. V. H. Iun, Amir K. Khandani
exaly +2 more sources
UNJUK KERJA PENYAMA TURBO PADA SISTEM CODE DIVISION MULTIPLE ACCESS (CDMA)
Techne, 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 +2 more sources
Design and Implementation of MC-CDMA Technique Using FPGA [PDF]
Engineering and Technology Journal, 2013 Multicarrier Code Division Multiple Access (MC-CDMA) is attractive technique for high speed wireless data transmission; it's a combination of Orthogonal Frequency Division Multiplexing (OFDM) and Code Division Multiple Access (CDMA).
il A. H. Hadi, Layla Hattim Abood
doaj +1 more source
Asian Journal of Applied Science and Technology, 2021 This paper provides a study of Interleave division multiple access (IDMA) system by implementing in MATLAB and comparison with Code division multiple access (CDMA) in terms of performance. By using MATLAB we can analyze data, develop algorithms, create models and applications as it is more familiarized to engineers and scientists.
D. Sony +3 more
openaire +1 more source
SCMA Spectral and Energy Efficiency With QoS
IEEE Access, 2021 Sparse code multiple access (SCMA) is one of the promising candidates for new radio access interface. The new generation communication system is expected to support massive user access with high capacity. However, there are numerous problems and barriers
S. Jaber, W. Chen, K. Wang
doaj +1 more source
Performance enhancement of MC-CDMA system through novel sensitive bit algorithm aided turbo multi user detection. [PDF]
PLoS ONE, 2015 Multi carrier code division multiple access (MC-CDMA) system is a promising multi carrier modulation (MCM) technique for high data rate wireless communication over frequency selective fading channels.
Rasadurai Kumaravel +1 more
doaj +1 more source
Blind Joint Soft-Detection Assisted Slow Frequency-Hopping Multicarrier DS-CDMA [PDF]
, 2000 A novel multiple-access scheme based on slow frequency-hopping multicarrier direct-sequence, code-division multiple access (SFH/MC DS-CDMA) is proposed and investigated, which can be rendered compatible with the existing second-generation narrow-band ...
Hanzo, L., Yang, L-L.
core +1 more source
Statistical Modeling of Bit-Error-Rates in Asynchronous Multicarrier CDMA and Direct-Sequence CDMA Systems [PDF]
, 2004 This paper presents a method for modeling the bit-error-rate (BER) probability density functions (pdf) of asynchronous Multicarrier Code Division Multiple Access (MC-CDMA) and Direct-Sequence Code Division Multiple Access (DS-CDMA) systems.
Carey, Daniel +2 more
core +2 more sources
Robust or nonrobust: On MC-DS-CDMA acquisition in LEO satellite communications
Digital Communications and Networks, 2023 Low Earth Orbit (LEO) satellite communications can provide global coverage in the sixth generation communication (6G) networks. To combat the strong Partial Band Interferences (PBIs) and multipath fading in LEO satellite communication systems, the ...
Entong Meng +4 more
doaj +1 more source