[Retracted] Performance Evaluation of Spectral Efficiency for Uplink and Downlink Multi-Cell Massive MIMO Systems

Table 2

Symbolic Representations.

Symbols	Description
	Expectation
|. | and ||. ||	Absolute values and Euclidean norm
	identity matrix
	Pilot signal sequence
	Additive receiver noise
	Bandwidth
&	Coherence Time & Coherence Bandwidth
	Assigned as transmit precoding vector
and	Transmission symbols (uplink & downlink)
&	Uplink transmission & downlink transmission pre log factor