Joint detection assisted AQAM based CDMA
TCM, TTCM, BICM and BICM ID Assisted Joint Detection Based CDMA
... Urban channel of Figure 4 using the transmission burst structure. of the FMA1 spread speech/data burst of the FRAMES proposal[r] ...
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Blind Joint Soft Detection Assisted Slow Frequency Hopping Multicarrier DS CDMA
... third-generation CDMA systems can be supported using one or more subcarriers, consequently simplifying the frequency re- source management and efficiently utilizing the entire band- width ...
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A Burst by Burst Adaptive Joint Detection Based CDMA Speech Transceiver
... The overall SEGSNR versus channel SNR performance of the proposed speech transceiver is displayed in Figure 4. Observe that the source sensitivity-matched triple-class RRNS-coded 4.75 kbps BPSK/JD-CDMA system ...
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Coded Modulation Assisted Genetic Algorithm Based Multiuser Detection for CDMA Systems
... In an effbrt to increase the system's performance with the aid of channel coding, but without increasing the required bandwidth, in this contribution we will investigate the [r] ...
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Genetic algorithm assisted Joint multiuser symbol detection and fading channel estimation for synchronous CDMA systems
... fitness. Based on the same concept, the data vector elements and CIR vector elements belonging to a pair of par- ents will be exchanged using the same crossover mask in our proposed joint symbol detector ...
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Joint Detection and Interference Cancellation Based Burst by Burst Adaptive CDMA Schemes
... achieves a higher throughput at the cost of a reduced error resilience. The associated channel capacities of these schemes have been explicitly characterized in [44, p. 284]. Upon returning to our simulation results, the ...
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Multi Mode Joint Detection CDMA/H 263 Based Video Telephony
... the CDMA transceiver was capable of transmitting 1, 2 and 4 bits per symbol, where each symbol was spread using a low spreading factor (SF) of 16, as seen in Table ...of joint-detection techniques ...
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Genetic Algorithm Based Antenna Diversity Assisted Multiuser Detection for Synchronous CDMA Systems
... individuals are chosen for selection based on the concept of.. the so-called Pareto optimality , which uses the information.[r] ...
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A Joint Optimization Criterion for Blind DS-CDMA Detection
... blind detection of a desired user in an asynchronous DS-CDMA communications system with multipath propagation ...criterion based on the joint optimization of several higher-order statistics of ...
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Burst by Burst Adaptive Joint Detection CDMA/H2 63 Based Video Telephony
... Below, we now detail the video-packetization method employed. The reader is reminded that the number of QAM symbols per TDMA frame was 68 according to Table I. In the 4QAM/JD-CDMA mode, this would give 136 bits ...
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Genetic Algorithm Assisted Multiuser Detection for Asynchronous Multicarrier CDMA
... GA assisted MUD scheme as a suboptimal MUD technique applicable to asynchronous MC-CDMA sys- tems communicating over broadband frequency selective fad- ing ...
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Genetic Algorithm Assisted Multiuser Detection in Asynchronous CDMA Communications
... (16) where . The GA parameters used in this case were , , , and . As Fig. 5 shows, the DBEP of the GA-based mul- tiuser detector employing S1 was inferior compared to that of S2. The error floor observed for S1 in ...
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M ary Coded Mouldation Assisted Genetic Algorithm Based Multiuser Detection for CDMA Systems
... IV. Conclusion In this contribution, TCM, TTCM, BICM and BICM-ID as- sisted GA-based MUD schemes were proposed and evaluated in performance terms when communicating over the AWGN and narrowband Rayleigh fading ...
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Antenna Diversity Assisted Genetic Algorithm Based Multiuser Detection Schemes for Synchronous CDMA Systems
... Multiuser Detection Schemes for Synchronous CDMA Systems ...reception assisted multiuser code-division multiple-access detector based on genetic algorithms (GAs) is ...exploitation, ...
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Belief propagation based joint iterative algorithm for detection and decoding in asynchronous CDMA satellite systems
... iterative detection rather than independently ...the joint structure in [8] and ...previous detection iteration from the other users are also adopted in the message updating based on BP dur- ...
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Frequency-domain multiuser detection for CP-assisted DS-CDMA signals
... As an alternative, we can combine DS-CDMA schemes with CP-assisted block transmission techniques, allowing a frequency-domain receiver design that have relatively low complexity, even for severely ...
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A Redundant Residue Number System Coded Burst by Burst Adaptive Joint Detection Based CDMA Speech Transceiver
... two-user AQAM/JD-CDMA system using the parameters of Table ...the AQAM/JD-CDMA scheme mirrored that of BPSK/JD-CDMA, which can be explained us- ing ...different ...
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Enhancing the Performance of Random Access Networks with Random Packet CDMA and Joint Detection
... elaborate, based on the results presented in [5, 7, 8], we can calculate the elements on the diagonal of E and use them as a measure of the number of parallel channels and the degree of their independence obtained ...
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Reduced Complexity Near Optimum Genetic Algorithm Assisted Multiuser Detection for Synchronous Multicarrier CDMA
... “Genetic algorithm assisted joint mul- tiuser symbol detection and fading channel estimation for syn- chronous CDMA systems:’ IEEE Joumal on Selected Areas in Communicarions. [r] ...
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Burst by burst Adaptive Joint Detection CDMA/H 26L Based Wireless Video Telephony using TTCM and LDPC Codes
... LDPC joint coding/modulation schemes considered, when communicating over the UTRA channel of Figure ...LDPC-based AQAM curve of Figure 4 has been repeated in Figure 6 for ...
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