نتایج جستجو برای: multipath channel
تعداد نتایج: 229281 فیلتر نتایج به سال:
The authors have studied a new method to find parameters of broadband power line communication channel model. Lossless power line communication channel model is compared with classical interferometers approach to develop this model. The authors also used coaxial cables to simulate a multipath channel, because it can behave like a lossless power line communication channel. Thus, measurements wer...
In 2002 the German Aerospace Centre (DLR) performed a measurement campaign of the land mobile multipath channel. From this data a channel model was derived that is synthesising the measured channel impulse response. It allows the realistic simulation of the multipath channel by approximating every single reflection. This model includes time variant reflectors approaching and receding in depende...
In 2002 the German Aerospace Centre (DLR) performed a measurement campaign of the land mobile multipath channel in and around the city of Munich. From this data a channel model was derived that is synthesising the measured channel impulse response. It allows the realistic simulation of the multipath channel by approximating every single reflection. This model includes time variant reflectors ap...
Coherent Detection for DS/CDMA System with M -Ary Orthogonal Modulation in Multipath Fading Channels
In this letter, we propose the channel estimation technique in the uplink of a DS/CDMA system with M -ary orthogonal signaling over multipath fading channels. The channel estimation is carried out using the maximum correlator output of RAKE receiver. With the estimated channel parameters, the RAKE receiver can coherently combines the received multipath signals, resulting in a significant perfor...
In 2002 the German Aerospace Centre (DLR) performed a measurement campaign of the land mobile multipath channel. From this data we derived a channel model that is synthesising the measured channel impulse response. It allows the realistic simulation of the multipath channel by approximating every single reflection. This model includes time variant reflectors approaching and receding in dependen...
In this paper, we consider an orthogonal-frequency-division-multiplexing (OFDM) mobile communication system operating in downlink mode in a time-varying multipath Rayleigh channel scenario. We present a Mean Square Error theoretical analysis for a multipath channel complex gains estimation algorithm with inter-sub-carrier-interference (ICI) reduction using a comb-type pilot. Assuming the presen...
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