Research Article

A Hybrid Multiuser Detector Based on MMSE and AFSA for TDRS System Forward Link

Table 1

Simulation parameters.

ParameterValue

Communication linkForward link
Multiple accessCDMA
ModulationQPSK
Spreading codesGold sequences
Length of spreading codes1023
Communication channelAWGN
Number of tested information bits1,000,000
Number of artificial fishes3
Visual 4
try_number 3
Number of iterations5