Pilot Signal Overhead

1. What is pilot overhead?
2. What does a pilot signal do?
3. What is pilot signal in massive MIMO?
4. What is a LTE pilot signal?

What is pilot overhead?

A part of pilot overhead is used for transmitting data, and compensating symbols are required and designed to remove the imaginary interference.

What does a pilot signal do?

In telecommunications, a pilot signal is a signal, usually a single frequency, transmitted over a communications system for supervisory, control, equalization, continuity, synchronization, or reference purposes.

What is pilot signal in massive MIMO?

Pilots are predefined reference signals that are transmitted to let the receiver estimate the channel. While many communication systems have pilot transmissions in both uplink and downlink, the canonical communication protocol in Massive MIMO only contains uplink pilots.

What is a LTE pilot signal?

To facilitate the estimation of the channel characteristics, LTE uses cell-specific reference signals (pilot symbols) inserted in both time and frequency. These pilot symbols provide an estimate of the channel at given locations within a subframe.