Howtosignalprocessing
- What is OFDM channel estimation?
- What is interpolation OFDM?
- What is channel estimation and Equalization?
- What are the techniques used in channel estimation?
What is OFDM channel estimation?
Channel estimation plays an important part in an OFDM system. It is used for increasing the capacity of orthogonal frequency division multiple access (OFDMA) systems by improving the system performance in terms of bit error rate.
What is interpolation OFDM?
In this study, interpolation methods are used for pilot symbol assisted channel estimation for OFDM systems. Selection of interpolation method effects the performance and complexity of the system. Performance of selected methods was investigated and compared by means of simulations.
What is channel estimation and Equalization?
Channel estimation provides information about distortion of the transmission signal when it propagates through the channel. This information is then used by equalizers so that the fading effect and/or co-channel interference can be removed and the original transmitted signal can be restored.
What are the techniques used in channel estimation?
Channel estimation can be carried out in different ways: with or without the help of a parametric model, using frequency and/or time correlation properties in the wireless channel, blind methods or those based on training pilots, adaptive or non-adaptive methods.
