In this paper, acquisition performance with adaptive pre-filtering is analyzed for a "coherent Paralperformance in a mobile fading channel. Under severe multiDath fading conditions. the P N code acauisition is difficult Y le1 matched-filter (MF) acquisition scheme with a reference filter (RF) in a multipath fading channel. Adaptive prefilterina is emoloved to reduce the effect of severe multipa...

Multipath fading is a major problem of the wireless communication channel. To eliminate this fading problem and to have reliable communications in wireless channel, channel coding techniques are used. In this paper BER (bit error rate) performance is shown, by the means of Rayleigh and Rician multipath fading channels. Here the convolution encoding is used. The performance of convolution encode...

considering a) that fading due to multipath propagation may distort and attenuate received signals on line-of-sight paths and thereby impair the performance of radio systems; b) that countermeasures such as diversity reception and adaptive equalization are available to reduce the effects of multipath fading on system performance; c) that methods of predicting the effects of multipath fading on ...

Direct sequence code division multiple access (DS-CDMA) communication systems using random polyphase sequences with coherent reception in multipath fading channels are considered. By examining the asymptotic characteristics of the multiple access interference and multipath interference, we show that the DS-CDMA system performance with random mp-phase sequences of mp 3 is better than that with r...

In this paper, we analyze the Bit Error Rate (BER) performance of Golden coded Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) system over Rician multipath fading channel. We also compare the performance of the MIMO-OFDM system using Golden code in Rayleigh and Rician multipath fading channels. We discuss the effects of the presence of line-of-sight (LoS) c...

Overlapping multipath propagation is one of the main sources of mobile-positioning errors, especially in fast channel fading situations. In this paper we present a technique for detecting the existence of overlapping fading multipath components. Such information is vital for accurate resolving of overlapping multipath components as well as avoiding unnecessary computations and errors in single-...

In this paper, the ratio of product of two α-k-μ random variables and α-k-μ random variable is analyzed. The closed form expression for average level crossing rate (LCR) of the ratio of product of two α-k-μ random variables and α-k-μ random variable is determined. The expression for level crossing rate of the ratio of product of two α-k-μ random variables and α-k-μ random variable can be used f...

The performance of a wireless signal propagation can be estimated with the properties or characteristics of the channel. This paper begins with the classification of the important characteristic of a channel i.e, fading. After that fast fading modeling for multipath with no direct path and multipath with direct path is analyzed in the fourth part of this paper. In the last section of this paper...

model, a RAKE receiver can be used to detect the signal from the multipath fading channel. the tap weights were assumed known when deriving RAKE receiver, but in practice a correlator is used to estimate the tap weights. Multipath fading is one of the major practical concernS in communications. Multipath problem always exists in mobile environment, especially for m~ bile unit which is often emb...