Search results
Feb 27, 2023 · A Rake Receiver is a radio receiver which is designed for the purpose to counter the effects of multipath fading. Due to reflections from multiple obstacles in the environment, the radio channel can consist of multiple copies of the transmitted signal having different amplitude, phases or delays.
A rake receiver is a radio receiver designed to counter the effects of multipath fading. It does this by using several "sub-receivers" called fingers, that is, several correlators each assigned to a different multipath component.
May 5, 2023 · Rake Receiver - Rake generally means the tool used in the garden to get all the fallen leaves. In wireless communication, a rake receiver is used in CDMA systems and the radio signal when reflected from any type of obstacle will travel with a different type of amplitude, phase, and delay.
The rake receiver is designed to optimally detected a DS-CDMA signal transmitted over a dispersive multipath channel. It is an extension of the concept of the matched filter. Figure: Matched filter receiver for AWGN channel. In the matched filter receiver, the signal is correlated with a locally generated copy of the signal waveform.
The RAKE receiver receives the signals from multiple paths and combine them suitably with different appropriate delays. This way it recovers the transmitted signal. The complete principle of Rake receiver is explained in the figure. As shown first binary data is EX-ORed with the chip code.
Abstract: A Rake receiver is a radio receiver designed to counter the effects of multipath fading in wireless communications. It does this by using several “sub-receivers” each delayed slightly in order to tune in to the individual multipath components.
The rake receiver is designed to optimally detected a DS-CDMA signal transmitted over a dispersive multipath channel. Different reflected waves arrive with different delays. A rake receiver can detect these different signals separately.
The Rake receiver reduces the effects of fading and provides spectral efficiency improvement of CDMA over other cellular systems. In CDMA systems, the bandwidth (1.25 to 15 MHz) is wider than the coherence bandwidth of the cellular or PCS channel.
Mar 25, 2023 · A comparison between Rake Receiver and Correlator Receiver using Cadence AWR tool is carried out. This platform enables designers to design and simulate the Receiver by using different parameters such as Bit Error Rate (BER).
Apr 1, 2012 · This paper reviews important and recent advances in rake diversity and its applications in wireless communications. First, we provide some theoretical background of rake reception focusing on...
