[PDF] Top 20 A Multicarrier DS CDMA System Using Both Time Domain and Frequency Domain Spreading
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A Multicarrier DS CDMA System Using Both Time Domain and Frequency Domain Spreading
... single-carrier DS-CDMA or a MC-CDMA is invoked for the sake of supporting a high number of users, the employment of advanced multiuser detection algorithms becomes impractical owing to their high ... See full document
5
Multiuser Detection in Multicarrier CDMA Systems Employing Both Time Domain and Frequency Domain Spreading
... Recently, multicarrier DS-CDMA (MC DS-CDMA) has at- tracted wide attention in the field of wireless communica- tions [1], ...MC DS-CDMA each subcarrier signal con- ... See full document
5
IJCSMC, Vol. 5, Issue. 7, July 2016, pg.67 – 73 A Review on MC-CDMA on Mobile Environment
... the multicarrier transmission with the frequency domain spreading, ...specific spreading code in the frequency domain but not in the time ...the spreading ... See full document
7
A Space Time Spreading Assisted Multicarrier DS CDMA System using OVSF Codes Employing Adaptive Mode Switching Thresholds and Adaptive Modulation
... narrow-band time-domain Rayleigh fad- ing , they were also used for frequency-domain AQAM-aided OFDM transmissions, since the frequency domain fading is also Rayleigh ... See full document
5
Parameter Estimation and Error Reduction in Multicarrier Systems by Time-Domain Spreading
... the time and frequency uncertainty in multicarrier transmission systems,a synchronization receiver which do not require the transmission of training symbols has been suggested in this ...the ... See full document
12
Multiuser Decorrelating Based Long Range Frequency Domain Channel Transfer Function Prediction in Multicarrier DS CDMA Systems
... based frequency-domain channel estimation and long range channel prediction techniques are proposed for a generalized Multicarrier DS-CDMA (MC DS-CDMA) system ... See full document
5
Performance of the Smart Antenna Aided Multicarrier DS CDMA and its Uplink
... MC DS- CDMA system investigated in [8], [9], which includes the sub- classes of multitone DS-CDMA [3] and orthogonal MC DS- CDMA [4] as special ...MC DS-CDMA ... See full document
5
Downlink Steered Space Time Spreading Assisted Generalised Multicarrier DS CDMA Using Sphere Packing Aided Multilevel Coding
... novel system that amalgamates the advantages of spatial diversity, frequency diversity as well as beamforming gain based on the principle of SSTS in order to enhance the attainable performance of the ... See full document
5
Software Defined Radio Assisted Adaptive Broadband Frequency Hopping Multicarrier DS CDMA
... FH/MC DS-CDMA system is a broadband wire- less mobile system constituted by multiple nar- rowband DS-CDMA ...whole system bandwidth and efficiently utilize the available ... See full document
10
Throughput Improvement of STS-Based MC DS-CDMA System with Variable Spreading Factor
... and frequency diversity are considered for CDMA ...Space- Time Spreading method [1] is used as the transmit diversity technique for MC DS-CDMA ...MC DS-CDMA ... See full document
10
Performance of Generalized Multicarrier DS CDMA Using Various Chip Waveforms
... the time- domain half-sine and raised-cosine chip waveforms, in addition to the rectangular chip ...of CDMA systems using overlapping subbands [1], [4]–[7], with the aid of the standard ... See full document
5
Blind Joint Soft Detection Assisted Slow Frequency Hopping Multicarrier DS CDMA
... is time limited or bandwidth limited and it is also nor- malized according to ...the spreading [6], and also assume that there exists no interference between ... See full document
10
Performance of multicarrier complementary coded CDMA under frequency selective Nakagami m fading channels
... In frequency-selective fading condi- tions, orthogonal restoring combining (ORC), maximal ratio combining (MRC), and minimum mean square error combining (MMSEC) have been a promising tech- nique in reducing MAI ... See full document
9
Generalized Multicarrier DS CDMA Using Various Chip Waveforms
... generalized multicarrier DS-CDMA (MC DS-CDMA) schemes [1] is investigated, when consider- ing time-domain half-sine and raised-cosine chip waveforms, in addition to the ... See full document
5
Frequency domain equalization space time block coded CDMA transmission system
... (DS- CDMA) transmission system in ...in frequency-selective channels. Some STBC schemes to deal with frequency selectivity have been proposed for orthogonal frequency division ... See full document
14
Performance of Broadband Multicarrier DS CDMA using Space Time Spreading Assisted Transmit Diversity
... The system considered in this paper is an orthogonal MC DS-CDMA scheme [5], [8] using number of subcarriers, number of transmitter antennas, and one receiver ...MC DS- CDMA ... See full document
10
Enabling dynamic spectrum access using SS MC CDMA
... By combining frequency domain and time domain dispersal of modulated symbols, two main variants of multi-carrier spread spectrum systems, the MC-CDMA and MC direct sequence CDMA MC-DS-CD[r] ... See full document
6
Time and Frequency Domain Spreading Assisted MC DS CDMA using Interference Rejection Spreading Codes for Quasi Synchronous Communications
... This report is organized as follows. Sections 2 will briefly de- scribe the family of generalized orthogonal codes. Section 3 char- acterises the philosophy of TF-domain spreading in the context of MC ... See full document
5
Broadband MC DS CDMA Using Space Time and Frequency Domain Spreading
... The system considered in this paper is an orthogonal MC DS- CDMA scheme [3] using U · S number of subcarriers, T x number of transmitter antennas and one receiver ...MC DS-CDMA ... See full document
5
International Journal of Emerging Technology and Advanced Engineering
... of CDMA and spread spectrum with OFDM in order to create a more robust modulation scheme that could survive frequency selective fading and thus OFDM- CDMA was ...OFDM-CDMA system with ... See full document
6
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