Table 1 The meaning of the symbols used in Equations ( 1 )–( 10 )
From: Downlink packet scheduling and resource allocation in EPON WiMAX hybrid access networks
Symbol | Meaning |
|---|---|
M | The total number of ONU-BS in the system |
N | The total number of SS in the system |
J | The maximum number of connections per SS |
TSS m | The maximum resource (time slots) of ONU-BS m |
Ts mn | The resource (time slots) allocated to SS n by ONU-BS m |
A mn | Whether ONU-BS m is the serving BS of SS n |
R n | The actual bandwidth (bps) allocated to SS n |
R n req | The minimum required bandwidth of SS n |
MRR j req | The minimum required bandwidth of the j th connection |
MLTR j req | The bandwidth that is needed for completely transmitting all the packets before deadline by the j th connection |
SINR n | The SINR value of SS n |
MCS n | The MCS adopted by SS n |
F n | The code rate of the error correction code used by SS n |
GERn | The packet loss rate of SS n |
Thresholdloss_rate | The required packet loss rate by WiMAX |