multipath Rayleigh fading channels
Bit Error Performance for Asynchronous Ds Cdma Systems Over Multipath Rayleigh Fading Channels (RESEARCH NOTE)
... parameter N. We observe that the accuracy of the SGA does not depend on N. The difference between the bit error rate curve for the SGA and the IGA remains almost the same when N changes. Figure 3 illustrates the ...
6
Performance Comparison of Multipath Rayleigh Fading Channels using M-PAM and Rectangular QAM Schemes in Digital Communication Systems
... above the other on the same tower. The difference between direct and reflected path length is different for the two antennas [5]. The multipath propagation in the mobile environment is a different scenario. In an ...
8
Frequency estimation in multipath rayleigh-sparse-fading channels
... and fading. In mobile channels, multipath components ex- perience different Doppler offsets; however, if the mobile speed and the carrier frequency are relatively low, the frequency offset is mainly ...
11
A Comparative Study between Multipath Fading Channels
... on fading and property of the channel were ...the channels. The more accurate model is Rayleigh model which can be considered for developing multipath fading channel ...
6
New Multiple Antennas Method based Energy Detector for Cognitive Radio over Fading Channels
... over Rayleigh and Nakagami- fading channels with asingle antenna, under ...[12], fading channels can be roughly divided into two types: (1) Large-scale fading due to (a) Path ...
6
Modelling and Simulation of Multipath Fading Channels for Comparative Analysis of Different M-Array Modulation Schemes
... and fading affect the modulated signals and the degradation of the symbol error rate due to these multipath paths and different fading ...of Rayleigh, Rician and ...of multipath ...
12
WCDMA uplink under Rayleigh fading channels is
... in multipath environment to enhance the link-level performance of a WCDMA mobile communication ...of multipath components are estimated from deterministic ray tracing ...
8
Orthogonal Frequency Division Multiplexing (OFDM) based Uplink Multiple Access Method Over AWGN and Fading Channels
... of channels to be used will be reduced ...with multipath fading without the use of complex equalization ...propagation channels. Some of the fading channels such as Rician and ...
7
Study of Methods to Mitigate Fading in Mobile Communication
... to multipath fades due to a large number of scaterers and ...such channels, taking into account, the phenomenon of multipath fading and correlation between ...employ Rayleigh, Rice and ...
5
MITIGATION OF FADING EFFECTS IN MULTIPATH CHANNELS
... a multipath Rayleigh fading channel than channel coding but in the case a Rician channel, channel-coding technique outperforms diversity mitigation ...excellent fading mitigation scheme refer ...
12
Research on Anti Jamming Performance of GMSK in Shortwave Frequency Hopping
... choose Rayleigh fading channel and Rice fading channel for ...flat fading and frequency selective fading are used in Rayleigh fading channel ...in Rayleigh ...
9
Adaptive Channel Estimation for Turbo Decoding
... the turbo decoder, as its inputs. This is one of the unique choices of this thesis. Some research takes the hard decision as its input of the adaptive channel filter [13], while some takes only the soft information as ...
73
Inter Carrier Interference Analysis of OFDM Systems Communicating Over Rapidly Fading Nakagami m Channels
... time-vaving fading channel,” in Proceedings of IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2003, ...rapid fading,” in Statistical Methods in Radio Wave ...
5
(PER). In this article, the PER is obtained for channels with Rayleigh and Rician fading. In the
... Abstract: Peak-to-Average Power Ratio (PAPR) is one of the main problems in wireless communications using Orthogonal Frequency Division Multiplexing (OFDM). Its behavior is random and can produce problems for the ...
7
On Channel Estimation of OFDM BPSK and QPSK over Generalized Alpha Mu Fading Distribution
... There exists a large number of distribution schemes to describe the statistics of mobile radio signal. A key as- sumption in the theoretical explanation of the Rayleigh, Rician, Nakagami and Weibull distribution ...
5
POWER CONTROL ERROR AND BER DETERMINATION IN MC-DS/CDMA SYSTEM OVER RAYLEIGH FADING CHANNEL USING WAVELET NETWORKS
... [3], multipath fading and (BER), the MC-CDMA technique was developed as a combination of the DS- CDMA technique and the Multi-carrier principles (OFDM), and hence, it inherits advantages of both ...under ...
10
Title: Improved Space Time Block Coding Diversity Technique for Rayleigh Fading Channel in Wireless Systems
... Abstract— Numerous diversity techniques are used to minimize BER in wireless systems. But, the most effective diversity technique is Space Diversity. Space diversity is utilization of Multiple antenna systems (Multiple ...
10
Performance Evaluation of IDEA encryption model under different Fading Channels
... different channels wiz; AWGN, Rayleigh, Rician and Nakagami fading ...communication channels on the basis of BER and Throughput ...of Rayleigh fading channel was worst among all ...
8
Interference Aspects of Adaptive Modems over Slow Rayleigh Fading Channels
... Figs. 18 and 19 show the BER and BPS performance of the optimized mean BER, speech, and computer data scheme with switching levels given in Table I, i.e., with switching levels ignoring the effects of interference, over ...
19
Accurate BER of MC DS CDMA over Rayleigh Fading Channels
... We studied the accurate BER calculation of an asynchronous MC-DS-CDMA system exposed to flat Rayleigh fading using random spreading sequences and BPSK modulation. Using the CF approach, we derived a new ...
10