Keinginan manusia akan komunikasi yang fleksibel memberikan tantangan
kepada para pengembang sistem
telekomunikasi. Manusia menginginkan sebuah komunikasi yang cepat, tampa batas dan
berteknologi tinggi. Untuk itu dikembangkan sebuah teknologi yang sering kita dengar
dengan istilah CDMA (
teknologi, manusia menuntut sebuah komunikasi dengan teknologi yang lebih tinggi.
Karena tuntutan manusia tersebut maka diluncurkan sebuah teknologi baru yang dapat
menjawab semua permasalahan komunikasi. Teknologi tersebut dikenal dengan istilah
WCDMA (
Karena
mekanisme
Desire of human being to have flexible communication gives a challenge for
cellular system provider to develop a telecommunication technology. People wants a fast
communication, infinite and high technology, to make it happen, CDMA (Code Division
Multiple Access) is the answer. The more technologies develop the more people need a
higher technology in communication, WCDMA (Wideband CDMA) is the answer to solve
all the problem people have in communication.
Because high mobility and traffic intensity, the good soft handover mechanism is
so needed that can pushing down blocking probability and dropping for the network, Soft
Handover is the one of the factor that can influence performance in wireless network, so
user will enjoy the communication and performance of that network will increase.
Using preemptive algorithm can push up the performance by optimizing limitation
of service bandwidth, result of handover model using Preemptive algorithm is decreasing
voice dropping probability by 11.73 % and decreasing voice blocking probability by 2 %
compare to fix channel reservation algorithm, but there are delay in email data that causing
decrease of email throughput average equal to 50%, Decreasing of blocking and dropping
probability can improve network performance because consumer necessity in voice
communication will run comfort, the delay on email data can be tolerate because email is
non-real-time data.
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