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Table 1 Parameters associated to the physical layer model.

From: QoS Modeling for End-to-End Performance Evaluation over Networks with Wireless Access

 

Parameter

Description

Physical layer

Target Bit Error Rate (BER)

 

Constellation set (modulation levels)

 

TTI

Transmission Time Interval

 

Number of channels

 

Correlation between consecutive channels

 

Frame duration

 

Number of QAM symbols multiplexed on a channel

 

Number of QAM symbols per TTI

 

Coding Rate

 

Channel Coding Gain

Radio Channel

Doppler spread

 

Average Signal to Noise Ratio (SNR)