direct-sequence code-division multiple-access communication systems
A novel low complexity multiuser detector based on modified genetic algorithm in Direct Sequence-Code Division Multiple Access communication systems
... the communication system is asynchronous DS-CDMA MUD, over slow Rayleigh fading AWGN ...identical systems and channel conditions in order to provide fair com- parison to other ...
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Evaluation of BER in CDMA with Parallel Interference Cancellation
... wireless systems presents a big challenge, since these systems should be able to cope with severely time-dispersive channels and are expected to have high spectral and power ...wireless communication ...
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Effect of length on Correlation of PN sequence and Gold sequence
... Pseudo-random sequence is the basis of spread spectrum communication systems intern CDMA (code division multiple access communication ...implement direct ...
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Influence of laser diode nonlinearities on fibre optic systems supporting direct-sequence code division multiple access signals
... commercial Code Division Multiple Access (CDMA) systems proposed alongside the more usual FDM A/TDM A ...(Personal Communication Network) (or DCS1800, now re-named GSM 1800) and ...
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Using chaotic sequence in direct sequence spread spectrum based on code division multiple access (DS CDMA)
... chaotic systems on their initial conditions, a large number of uncorrelated, random-like, deterministic and reproducible signals can be ...obtain communication between different users at the same band of ...
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Blind linear multiuser detection for DS-CDMA wireless networks
... The Code Division Multiple Access (CDMA) technology has been proposed to implement the future wireless communication systems, mainly due to its promise of capacity improvement ...
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Performance Evaluation of a DS CDMA System in a Rayleigh Fading Environment
... mobile communication systems were done considering the mobile wireless channel either AWGN channel or Rayleigh distributed flat or frequency selective fading chan- ...a Direct Sequence ...
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Study and analysis the BER performance of linear multiuser detectors in non-Gaussian noise channel
... of direct sequence code-division multiple-access (DS-CDMA) ...structured multiple access interference in CDMA communication ...conventional systems ...
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Transmitter-based Multiple Access Interference Rejection and Diversity Techniques for Code-division Multiple Access Systems
... Wireless communication is dramatically changing our ...wireless systems, the network consists of numerous mobile users communicating with one or multiple base stations (BS) that are interconnected ...
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Effect of Length on Correlation of PN Sequence and Gold Sequence
... Pseudo-random sequence is the basis of spread spectrum communication systems intern CDMA (code division multiple access communication ...implement direct ...
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Characterization of Communication Mechanisms for Implantable Body Sensor Networks
... enables access to the physical layer for a hierarchical topology consisting of nodes communicating with master nodes, which in turn communicate with the mon- itoring ...
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Adaptive modulation and rate coding multi carrier code division multiple access technique for 4G mobile communication systems
... The demand of future generation is networked consumer systems with large coverage range. In real life, in a work place or in an entertainment scenario, people want transparent internetworking, which provide ...
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Multiple Input Multiple Output Antenna Design
... (code division multiple access), OFDM (orthogonal frequency division multiplexing) and UWB (ultra- wide band) are the most developed technologies in present day mobile ...
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Lowest PAPR Selection Technique from SLM and PTS with One IFFT Block in Wireless MC-CDMA Communication Systems
... Abstract—MC-CDMA is the most promising technique for high bit rate and capacity transmission in wireless communication. One of the challenging issues of MC-CDMA system is the very high PAPR due to the large number ...
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Multi Functional Antenna Array Assisted MC DS CDMA Using Downlink Preprocessing Based on Singular Value Decomposition
... Multi-Carrier Direct Sequence Code Division Multiple Ac- cess (MC DS-CDMA) constitutes a high-flexibility multiple-access scheme, which is capable of providing a degree of ...
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Multiple Access Technologies for Beyond 3G Wireless Cellular Systems
... In this section we describe the main features required for MA schemes in B3G systems and address promising techniques. In B3G mobile systems, high-date-rate transmission on the order of 10 Mb/s and more is ...
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Time Hopping Multicarrier Code Division Multiple Access
... multicarrier code-division multiple-access (TH/MC-CDMA) scheme is proposed, where data is transmitted using relatively high-duration time-domain pulses with the aid of M -ary PPM ...
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BER performance of MC DS CDMA systems in the presence of timing jitter : a thesis presented in partial fulfillment of the requirements for the degree of Master of Engineering in Information and Telecommunication Engineering at Massey University, Palmerston North, New Zealand
... CDMA systems based on the combination of CDMA schemes and OFDM technique, which are referred to as multi-carrier CDMA systems, has received a lot of attention in the field of wireless communications due to ...
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Image Transmission in 4G LTE Using DWT Based SC-FDMA System
... key resolution of this is to encounter the on system which can send the data at high speed with the acceptable level of bit error rate (BER). The wireless transmission medium is affected by the mobility of users and ...
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Two dimension MDW OCDMA code cross-correlation for reduction of phase induced intensity noise
... in code length, effective power, reducing the bit rate, the increment in impedance acquainted with the framework which causes framework ...or code weight ( w ) depends on the size of the chosen ...the ...
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