MC-CDMA scheme performance
Performance of Generalized Multicarrier DS CDMA over Nakagami $m$ Fading Channels
... generalized MC DS-CDMA system is shown explicitly in ...orthogonal MC DS-CDMA scheme achieves the best BER ...DS-CDMA scheme associated with does not constitute a good ...
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Performance Estimation of 2*4 MIMO-MC-CDMA Using Convolution Code in Different Modulation Technique using ZF Detection Scheme
... higher results increase in BER. This paper aims to reduce bit error rate which is found in QPSK modulation scheme with gain of 17.56 dB with respect to 64-QAM which represents that the gain of QPSK is higher as ...
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Ant Colony Based Multiuser Detection for MC DS CDMA Systems
... multicarrier CDMA (MC-CDMA) operating without T-domain spreading ...a MC DS-CDMA system, which employed orthogonal Walsh Hadamad codes as its T-domain spreading sequence, combined with ...
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A novel code based iterative PIC scheme for multirate CI/MC CDMA communication
... Code-PIC scheme, multiple-access interference (MAI) for the desired user is estimated based on the projection of subcarrier and subsequent removal of interference from the received signal depending on specific ...
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Performance Enhancement of MC-CDMA System through STTC based STBC Site Diversity
... of MC-CDMA system in multi-path fading ...proposed scheme simultaneously exploits diversity gain and channel efficiency ...conventional MC-CDMA ...
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Performance Evaluations and Comparisons of Several LDPC Coded MC-FH-CDMA Systems
... orthogonal convolutionally coded scheme (previously reported in [5]) at low BERs. It has also been observed that the semi-random LDPC codes perform very well, despite their simple encoding structures. Then, to ...
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PERFORMANCE ANALYSIS OF WAVELET PACKET BASED MC-CDMA WITH THE MC-CDMA SYSTEM USING HHT TRANSFORM WITH DIFFERENT NO OF USER
... the performance of multi-carrier code division multiple access (MC-CDMA) technique, which is a key technology for efficient and reliable communication due to its high frequency spectrum efficiency ...
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Performance Enhancement of MC CDMA System through Turbo Block Codes
... of CDMA and OFDM. Hence MC-CDMA has the advantages of both CDMA and ...The CDMA part increases spectrum utilization and the OFDM part reduces multipath fading and inter symbol ...
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Performance Comparison of FH/MC DS CDMA with Single and Multi Carrier DS CDMA
... The multiple-access scheme is constituted by frequency-hopping FH based multicarrier DS-CDMA FWMC DS-CDMA, where the entire bandwidth of future systems can be divided into a number of su[r] ...
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Performance Evaluation of Adaptive Modulation Based MC CDMA System
... Sorour Falahati and Arne Svensson have studied an op- timum design for an adaptive modulation technique based on encoded M-QAM, assisted with channel prediction for the Rayleigh fading channel in [15]. Signaling delays ...
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Performance Analysis of MC CDMA over Different Fading Channels
... of MC-CDMA are used for rejection of interference and in clashing of multiple ...by MC-CDMA. Therefore, the MC-CDMA based approach is a promising wireless access scheme in ...
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Fractionally Spread Multicarrier CDMA: A Multiple Access Scheme for Various Wireless Channels
... multicarrier CDMA arrangement, i.e., the FS MC-CDMA scheme, which employs concatenated T- domain spreading for improving the achievable performance, when communicating over wireless ...
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Performance of Broadband Multicarrier DS CDMA using Space Time Spreading Assisted Transmit Diversity
... orthogonal MC DS-CDMA scheme [5], [8] using number of subcarriers, number of transmitter antennas, and one receiver ...synchronous MC DS- CDMA scheme is investigated, where the ...
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Multi Functional Antenna Array Assisted MC DS CDMA Using Downlink Preprocessing Based on Singular Value Decomposition
... preprocessing scheme for downlink transmission in the multicarrier direct-sequence code-division multiple-access (MC DS-CDMA) systems using multiple base-station antenna arrays and each antenna array ...
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Generic MMSE Decision Directed Channel Estimation for OFDM and MC CDMA
... (NMSE) performance and (b) the achievable turbo-coded Bit Error Rate (BER) of the DDCE scheme of Figure 1 using both the full-complexity MMSE and the RC-MMSE SS-CIR estimators described in Sections ...and ...
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Enhancing throughput in MC-CDMA Systems Using Non Contiguous Spectrum
... based MC-CDMA Systems for 4G Wireless Consumer Applications has For high data rate achievement , adaptive modulation based M- ary PSK, M-ary QAM, M-ary CPM, M-ary MHPM and GMSK systems applied to Turbo ...
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BER Performance for Downlink MC-CDMA Systems over Rician Fading Channels
... We consider downlink multicarrier code-division multiple-access (MC-CDMA) systems using binary phase-shift keying (BPSK) modulation scheme and maximal ratio combining (MRC) in frequency-selective ...
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Serial Acquisition Performance of Single and Multi carrier DS CDMA over Nakagami $m$ Fading Channels
... acquisition performance of single-carrier and MC DS-CDMA systems is analyzed and compared when commu- nicating over Nakagami- fading channels under the hypothesis of multiple synchronous states ( 1 ...
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A Unified Approach to the Analysis of Multicarrier DS CDMA over Nakagami $M$ Fading Channels
... its performance is considered over multipath Nakagami- m fading ...unified MC DS-CDMA scheme is a variable, allowing us to gain insight into the effects of the spacing on the bit error rate ...
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Generic Reduced Complexity MMSE Channel Estimation for OFDM and MC CDMA
... The performance of a decision-directed channel estimation scheme is analyzed in the context of both OFDM and MC-CDMA ...a MC-CDMA system is described and a suitable MMSE-based ...
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