DS/CDMA wireless communication receiver
Performance Improvement of Wireless communication System of DS CDMA with Rake Receiver
... Rake receiver consists of multiple fingers or correlators, in which the receive signal multiplied with time- delayedforms of a nearbyformed code ...the CDMA Rake receiver is used. In a ...
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VHDL IMPLEMENTATION OF DS SS-CDMA TRANSMITTER AND RECEIVER FOR AD HOC NETWORK
... of CDMA. In DS-SS CDMA multiple signal channels occupy the same frequency band being distinguished by the use of different spreading ...personal communication system uses CDMA ...and ...
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Performance and Analysis of DS-CDMA Rake Receiver and Analyzing the BER Performance in Presence of Nonlinear Distortion in DS-CDMA System
... a CDMA system by varying the system parameters. CDMA is a popular technology in cellular system due to its superior capacity and ...conventional CDMA, obtained better signal to noise ratio by using ...
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Design and Performance Analysis of an Adaptive Receiver for Multicarrier DS CDMA
... broadband wireless mobile communi- cation systems are expected to support various services over a multitude of channels encountered in indoor, open rural, suburban, and urban environments, while maintaining the ...
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Blind linear multiuser detection for DS-CDMA wireless networks
... globalised, wireless telecommunica tion must be able to provide mobile communications “anywhere” and ...future wireless communication systems, mainly due to its promise of capacity improvement over ...
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Performance of Generalized Multicarrier DS CDMA over Nakagami $m$ Fading Channels
... the communication environments encountered, in order to achieve the optimum performance in terms of ...multitone DS-CDMA, then a subcarrier signal will overlap with a high number of subcarrier ...
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Design and Performance Analysis of DS-CDMA with Rake and without Rake Receiver Communication System
... of DS-CDMA wireless communication system with and without Rake Receiver for multiple input using MATLAB ...through wireless towards the Rake Receiver which will follow ...
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Joint Closed-Loop Power Control and Base Station Assignment for DS-CDMA Receiver in Multipath Fading Channel with Adaptive Beamforming Method
... Diversity and power control are two effective techniques for enhancing the signal-to-interference- plus-noise ratio (SINR) for wireless networks. Diversity exploits the random nature of radio propagation by ...
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Improved Iterative Parallel Interference Cancellation Receiver for Future Wireless DS-CDMA Systems
... (CDMA) communication systems can be identified in their vulnerability to multiple access interference (MAI): hence, during the 90s, great attention has been devoted to multiuser detection strategies that ...
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Adaptive DS/CDMA Non Coherent Receiver using MULTIUSER DETECTION Technique
... spectrum CDMA systems (DS/CDMA) are becoming widely accepted and promise to play a key role in the future of wireless communications applications because of their efficient use of the channel ...
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Signal Processing by Generalized Receiver in DS-CDMA Wireless Communication Systems with Optimal Combining and Partial Cancellation
... a DS-CDMA system with multipath fading ...a receiver based on the ...a receiver based on PPIC with hard decisions owing to their nonlinear ...
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Performance Evaluation of Diversity Techniques in IDMA Scheme for Next Generation (4G) in Underwater Wireless Communication
... Several systems are designed and manufactured commercially and mostly based on analogue technology and employing Single Side Band (SSB) modulation. Technically all these systems are behind the advanced digital technology ...
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Single and Multi Carrier DS CDMA: Multi USer Detection, Space Time Spreading, Synchronisation, Standards and Networking
... interleaving A technique employed to randomize burst errors caused by fading in the mobile channel. The transmitted bits are arranged according to a known order before transmission and at the receiver the received ...
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Minimum BER Receiver Filters with Block Memory for Uplink DS CDMA Systems
... the receiver parameters in a perfect synchronized system when the receiver is modeled by a memoryless block receiver ...BER receiver filter for single-user SISO systems and no transmitter ...
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THE THROUGHPUT FOR MULTI HOP RELAY WIRELESS SENSOR NETWORKS BASED ON COOPERATIVE DIVERSITY
... chaotic communication system combined with adaptive beam forming is proposed, for secure communications and to improve the system performance by mitigating ...
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A Unified Approach to the Analysis of Multicarrier DS CDMA over Nakagami $M$ Fading Channels
... direct-sequence CDMA [2] (multitone DS-CDMA) and that of orthogonal multicarrier DS-CDMA (MC DS-CDMA) [3] spreads the serial-to-parallel (S-P) converted data streams using ...
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Performance Analysis of a Wireless CDMA Transmission System with Receiver Diversity Schemes
... efficient CDMA systems [15], [17], [20]. While receiver-based multiuser detection (MUD) techniques are suitable for the uplink, Tx-based MAI cancellation techniques have been proposed for the downlink to ...
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Multicarrier DS CDMA: A Multiple Access Scheme for Ubiquitous Broadband Wireless Communications
... L AJOS H ANZO [SM] ([email protected]) received his Mas- ter’s degree in electronics in 1976 and his doctorate in 1983. During his 26-year career in telecommunications he has held various research and academic posts in ...
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Space-Time Joint Interference Cancellation Using Fuzzy-Inference-Based Adaptive Filtering Techniques in Frequency-Selective Multipath Channels
... interface converts fuzzy control decision into crisp, nonfuzzy (physical) control signals. These control signals are applied to adjust the value of the variable γ in order to improve convergence/tracking capability of ...
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Analysis, Design, and Test of CDMA LFSR with Offset Mask Using Standard ICs
... Finite fields provide the necessary theory in designing LFSR [6] [7]. From a primitive polynomial, the equiva- lent circuit can be modeled with electronic components such as flip flops and XOR gates; each monomial indi- ...
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