Do you recommend a textbook on channel estimation of narrowband communications?

1. Why is channel estimation important?
2. Why do we require channel estimation in advanced wireless communication?
3. What are the techniques used in channel estimation?

Why is channel estimation important?

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.

Why do we require channel estimation in advanced wireless communication?

So channel estimation technique is introduced to improve accuracy of the received signal. The radio channels in mobile communication systems are usually multipath fading channels, which are causing inter symbol interference (ISI) in the received signal.

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.