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Table 1 Main simulation parameters and values.

From: Efficient Control Channel Resource Allocation for VoIP in OFDMA-Based Packet Radio Networks

Parameter

Value

Deployment scenario

3GPP LTE: Macro Case 1 and 3

 

ITU IMT-A: indoor hotspot, urban microcell,

 

urban macrocell, and rural macrocell

HARQ

Asynchronous adaptive with chase combining

 

Num. of stop-and-wait processes: 8

 

Max. number of retransmissions: 3

Measurement time duration: 2 ms

 

Measurement subband bandwidth: 360 KHz

 

Narrowband error standard deviation: 1 dB

 

Wideband error standard deviation: 0.2 dB

 

Quantization step: 1 dB

 

Feedback delay: 2 ms

 

Measurement period: 5 ms

PDSCH

Transmission power: 12 W (Macro scenario)

 

Num. of data OFDM symbols per TTI: 11

 

Num. of PRBs: 25

 

Num. of subcarriers: 300

 

BLER target: 10%

 

OLLA step up: 0.5 dB

 

OLLA step down: 0.05 dB

 

Max. OLLA step up: 3 dB

 

Max. OLLA step down: −1 dB

PDCCH

Transmission power: 8 W (Macro scenario)

 

Num. of control OFDM symbols per TTI: 3

 

Num. of CCEs (REs): 10 (360)

 

BLER target: 1%

 

Max. power increase: +2 dB

 

Max. power decrease: −4 dB