Impact of Feedback Channel Delay over Joint User Scheduling Scheme and Separated Random User Scheduling Scheme in LTE-A System with Carrier Aggregation

Table 2

LTE-A simulation system configurations.

Parameter	Setting and value
Carrier frequency	2 Ghz
Transmission bandwidth	20 Mhz per component carrier
Cell layout	Hexagonal grid, 7 cell sites, and 3 sectors per eNode-B per component carrier
Subframe (TTI) length	1 ms
MIMO configuration	2×2 MIMO with rank adaptation
Dynamic scheduling algorithm	Frequency domain based on PF
CCs scheduling scheme	SRUS and JUS
Modulation and coding scheme	QPSK, 16-QAM, and 64-QAM
Granularity of scheduling	1 TTI
Traffic model	Full buffer
Number of UEs per sector	13
Resource elements for user data apiece RB	148
Feedback delay	3–6 ms
Number of subcarriers apiece RB	12