wideband CDMA
Analysis The Effect Of Diversity Technique On A Multi-user Wideband Cdma (w-cdma) Communication System
... All these schemes try to take advantage of the WCDMA radio techniques without ignoring the numerous advantages of the already existing GSM networks. The standard that has emerged is based on ETSI’s Universal Mobile ...
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Adaptive Space Time Spreading Assisted Wideband CDMA Systems Communicating over Dispersive Nakagami m Fading Channels
... Wideband CDMA channels are typically frequency- selective fading channels, having a number of resolvable paths. Therefore, in this contribution, first we investigate the performance of W-CDMA systems ...
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Design Verification and Performance Evaluation of an Enhanced Wideband CDMA Receiver Using Channel Measurements
... The spatio-temporal array receiver (STAR) decomposes generic wideband CDMA channel responses across various parameter dimensions (e.g., time delays, multipath components, etc.) and extracts the associated ...
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Adaptive Space Time Spreading Assisted Wideband CDMA Systems Communicating over Dispersive Nakagami Fading Channels
... Wideband CDMA channels are typically frequency- selective fading channels, having a number of resolvable paths. Therefore, in this contribution, first we investigate the performance of W-CDMA systems ...
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Multichannel Baseband Processor for Wideband CDMA
... Code-division multiple access (CDMA) is the physical layer access method used in third-generation (3G) mobile radio systems [1]. 3G systems have improved receiver performance over any of the current cellular ...
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Performance of Wideband CDMA Using Space Time Spreading over Multipath Nakagami Fading Channels
... using wideband code-division multiple-access (W-CDMA) [3], ...of CDMA systems using STS has been investigated, when the channel is modeled ei- ther as a flat or as a frequency-selective Rayleigh ...
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A hybrid equalizer/Rake receiver for the Wideband CDMA Downlink in large delay spread channels
... Abstract. Signals transmitted over a multi-path propagation channel exhibit Inter-Path Interference (IPI) and fading. The receiver has to employ measures to mitigate these effects or it will incur severe performance ...
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Slow Frequency Hopping Multicarrier DS CDMA for Transmission over Nakagami Multipath Fading Channels
... Abstract—A novel multiple access scheme based on slow frequency hopping multicarrier direct-sequence code division multiple access (SFH/MC DS-CDMA) is proposed and inves- tigated, which can be rendered compatible ...
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A Novel "Near Orthogonal Spreading Codes" and its Performance Analysis
... spectrum CDMA scheme is one in which the transmitted signal is spread over a wide frequency band, much wider than the minimum bandwidth required to transmit the information being ...used CDMA It spread the ...
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On Quantifying Covertness of Ultra-Wideband Impulse Radio
... interceptor may have prior knowledge about the communication system which is used to “tune” the detector. Hence the covertness is calculated for different amounts of prior knowledge available to the detector. Worst case ...
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Exploring the reconfigurability options of multi carrier CDMA in cognitive radio systems
... Nolan K. [8] suggested the option of dynamic selection of sub- carriers in an OFDM system using a channel mask and an enhanced training symbol (ETS). More recently, [16] has ex- plored the option of nulling certain ...
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Analytical Bit Error Rate Performance of DS CDMA Ad Hoc Networks using Large Area Synchronous Spreading Sequences
... Abstract: The performance of large area synchronous (LAS) direct sequence code division multiple access (DS-CDMA) assisted ad hoc networks is investigated in the context of a single-hop infinite mesh of ...
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Fractionally Spread Multicarrier CDMA: A Multiple Access Scheme for Various Wireless Channels
... modulation and channel delay are assumed to be perfect esti- mates. By contrast, for the slowly fading channels considered, both the fading amplitudes as well as the phases are indepen- dent of the fraction index of n. ...
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LINKED OPEN GOVERNMENT DATA AS BACKGROUND KNOWLEDGE IN PREDICTING FOREST FIRE
... Using the above described technology of CDMA based security for worm-hole detection in underwater wireless sensor networks. It is easy to avoid the unwanted packets at the receiver node. So it decreases the ...
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Cell Breathing Technique for Load Balancing in Datacenter Networks
... Cell breathing has been contemplated for the most part with regards to CDMA cell systems. The inclusion and limit of a CDMA cell are contrarily related with one another. The expansion of the quantity of ...
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A novel Chaotic Collaborative CDMA scheme under Rayleigh fading
... A pilot based channel estimation technique has been studied for non-coherent CDMA over fading channels. An optimal receiver is designed with a maximum-likelihood decoder and the parameters such as coding rate and ...
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Survey of Interference Mitigation Techniques and Correlation Properties of Spreading Codes for MC-CDMA System
... In order to construct PN sequence having smaller cross correlation can add preferred pair of m-sequence to make gold sequence. One of a family of pseudo-noise codes that exhibits minimal, well defined, cross-correlation ...
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WCDMA in Malaysia
... W-CDMA transmits on a pair of 5 MHz-wide radio channels, while CDMA2000 transmits on one or several pairs of 1.25 MHz radio channels [1]. Though W-CDMA does use a direct sequence CDMA transmission ...
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Performance of multicarrier complementary coded CDMA under frequency selective Nakagami m fading channels
... coded CDMA with conventional CDMA systems employ- ing Walsh codes to show the advantage of CC-CDMA in obtaining large diversity gain when incorporating PIC with different combining ...
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PAPR Reduction Based on Proposed Rotating Phase Shift Technique in MC CDMA Using FPGA
... In [7], the authors have proposed a lower complexity PAPR reduction scheme, which at the transmitter side a single IFFT block is used without any sub-block partitioning or phase factors. FPGA implementation of ...
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