Rayleigh-fading multiple-access channel
Performance Evaluation of a DS CDMA System in a Rayleigh Fading Environment
... The objectives of the current research work were: 1 To study a Direct Sequence Code Division Multiple Access DS-CDMA system in a Rayleigh fading channel, 2 To carry out the analysis for [r] ...
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Transmitter Diversity and Multiuser Precoding for Rayleigh Fading Code Division Multiple Access Channels
... the channel, this feedback is outdated when it arrives at the transmitter ...slow fading channels (pedestrian or low vehicle speeds), outdated CSI is sufficient for reliable adaptive system ...faster ...
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Bi-Level Fh-Cdma Scheme For Communication Systems Over Rayleigh And Rician Channels
... division multiple-access (FH-CDMA) scheme for digital wireless communication systems for the fading channels like Rayleigh and Rician ...
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Multiple access interference in MIMO CDMA systems under Rayleigh fading: statistical characterization and applications
... BER is defined as the number of bits received in error with respect to the total number of bits received at a par- ticular receiver. BER performance is considered to be a very important criterion for CDMA systems as it ...
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An Implementation of Nonlinear Multiuser Detection in Rayleigh Fading Channel
... In multiple-access channels, not only do the received ampli- tudes vary with time, but so too do the received signature waveforms, due to channel ...sider Rayleigh distributed signal ...
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Individual secrecy of fading homogeneous multiple access wiretap channel with successive interference cancellation
... quasi-static Rayleigh fading homogeneous multiple access wiretap channel (MAC-WT), where a legitimate receiver employs successive interference cancellation (SIC) ...main channel ...
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Bit Error Rate Performance for Multicarrier Code Division Multiple Access over Generalized η-μ Fading Environment
... selective fading channels was addressed using equal gain combining and maximal ratio combining ...different fading Nakagami- m parameters, modulation schemes (4, 16, and 64 QAM) and different number of ...
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Performance Evaluation of 4G-LTE-SCFDMA Scheme under SUI and ITU Channel Models
... of channel equalization was done and it is found that the performance of the minimum mean square error MMSE method was better than the zero forcing ZF ...the channel types first the ITU channel was ...
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Performance Improvement of OFDM Communication System in Rayleigh Fading Channel
... The fading channel can be expressed by two models, Rayleigh fading channel which contains multiple reflective paths, and there is no line-of-sight signal component, and Rician ...
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An Improved Channel Estimation Algorithm Based on Cubic Convolution Interpolation for LOWPM System
... The property of self orthogonal for integer translation of wavelets and the mutual orthogonality of wavelets in different subspace can overcome ISI and ICI so that gaining a lot of focus. Lifting scheme based wavelet ...
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THE THROUGHPUT FOR MULTI HOP RELAY WIRELESS SENSOR NETWORKS BASED ON COOPERATIVE DIVERSITY
... and multiple receive antennas at the distant points are possible, it is feasible to afford a diversity order of 2*M with two transmit and M receive antennas ...The channel at time t can be modeled by ...
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Research on Anti Jamming Performance of GMSK in Shortwave Frequency Hopping
... the channel frequency selection characteristics, multipath channels can be divided into flat fading channels and frequency selective fading ...general, multiple signals arrive at the receiver ...
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Inter Carrier Interference Analysis of OFDM Systems Communicating Over Rapidly Fading Nakagami m Channels
... T-domain channel variation across an OFDM symbol may be considered to be ...T-domain channel envelopes associated with different Doppler shifts are ...T-domain channel envelopes whose normalized ...
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Cooperative Diversity Analysis using DF Relay Network over Rayleigh Fading Channel
... In this paper we evaluate the outage probability of dual hop opportunistic DF relay system in the presence of interference at both relay and the destination node. We derived an outage probability for Rayleigh ...
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Index Terms: MANET, Fading Channel, Rayleigh Fading, data Rate, speed of nodes
... time. Fading may be either due to multipath propagation or due to shadowing from ...obstacles. Fading is characterized in two types namely slow fading and fast ...Fast fading is due to ...
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An improved method of mimo ofdm channel estimation using chaotic pilot sequence
... SISO-OFDM channel estimation using blind and pilot based methods for Rayleigh fading channel have been ...MIMO-OFDM channel estimation using blind and pilot based (with binary pulse ...
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MIMO-OFDM System in Rayleigh Fadding Channel Maninder Singh, Dr. Hardeep Singh Saini
... In order to be able to benefit from MIMO fully it is necessary to be able to utilise coding on the channels to separate the data from the different paths. This requires processing, but provides additional channel ...
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Location Based Spectrum Sensing For Rayleigh Fading
... in fading environment and correct threshold selection for the given ...the Rayleigh fading environment is used for the analysis and the probability of detection, probability of false alarms are ...
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Improved Channel Estimation Algorithm for OFDM System over Slow Fading Rayleigh Channel
... multipath fading channel ...based channel estimator designed over a slow fading Rayleigh ...based channel estimator, the channel impulse response was calculated using ...
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Filter Centered Nonisotropic Fading Channel Archetypal For Wireless System Assessment
... of channel, if a channel model is created a complete fading channel simulator can be ...efficient channel model is developed then the wireless system evaluation can be performed on a ...
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