High speed data access over wireless may provided by High Speed
Downlink Packet Access technology (HSDPA), HSDPA technology is completion
of Wideband Code Division Multiple Access (WCDMA) that supported by third
generation standard. Adding channel on HSDPA that is called High Speed
Downlink Shared Channel (HS-DSCH, this channel can be used share with the
other user, the short transmission time interval (TTI) 2ms, so can reduce delay
and large capacity to make high high data rate until 14.4 Mbps.
In this examination, will be analyze about packet scheduling technique and
choosing modulation that will be used, and observed the impact of input
parameters (example : modulation scheme, SNR, Radio channel condition, data
length) to output parameters (example : user throughput, BLER, index
scheduling).
In this explanation will be simulate to data service with two user are
equally data accessed length, that is 1 Mbit. To simulating this explanation, is
used Mathlab 7.1 software.
User which good radio channel condition will get more the number of HSPDSCH
code and using upper modulation scheme. Using more code HS-PDSCH
and upper modulation code will increase user throughput as far as get the first
priority scheduling.