ARQ-Aware Scheduling and Link Adaptation for Video Transmission over Mobile Broadband Networks

Table 4

Mobile WiMAX simulator parameters.

Parameter	Value
OFDMA
Carrier frequency	2.3 GHz
Channel bandwidth	10 MHz
FFT length	1024
Subcarrier frequency spacing	10.94 kHz
Frame length	5 ms (48 OFDMA symbols)
Guard interval	1/8
DL subcarrier permutation scheme	PUSC DL
Number of active DL subcarriers	840
Number of subchannels	30 DL/35 UL
Data subcarriers per subchannel	24
OFDMA data symbols	22 DL/15 UL
DL capacity	330 slots
DL/UL ratio	60/40
MAC
MAC SDU size	815 bytes
ARQ block size	32 bytes
MAC PDU size	max 200 bytes
PDU packing	No
SDU fragmentation	Yes
QoS scheduling	UGS
Block rearrangement	No
ARQ feedback type	Selective-ACK
ARQ retry timeout	4 frames
ARQ block lifetime	0–90 ms
Max no. retransmissions	4
ARQ_DELIVER_IN_ORDER	Yes