Ditemukan 3 dokumen yang sesuai dengan query
Bandung: Informatika, 2007
621.381 3 PEL
Buku Teks Universitas Indonesia Library
Saragih, Hoga
"This paper will analyze the performance of adaptive slotted ALOHA DS-CDM4 over multipath fading with capture eject to increase throughput transmit data when traffic condition in saturation. To divine intervention we use algorithm to control level change transmission rate use user based on trqffic condition. Adaptive slotted ALOHA DS-CDA/L4 technique is technique access can do adaptation level transmission rate based trams condition. Using protocol access channel adaptive slotted ALOHA DS-CDAM combine between slotted ALOHA and DS-CDMA in wireless communication system. This method may users to do access simultaneously and using efficient spectrum is providential from adaptive slotted ALOHA DS-CDMA Performance of S-ALOHA DS-CDMA decrease on channel fading. To handle throughput decrease because amount bit on transmit packet, so capture effect can use to handle this problem. So effective throughput depend capture probability and probability packet success. From that result throughput adaptive slotted ALOHA DS-CDMA with capture eject on multipath fading channel increase with decrease capture ratio length bit packet and different number of path."
Jurnal Teknologi, 2006
JUTE-20-3-Sep2006-177
Artikel Jurnal Universitas Indonesia Library
Saragih, Hoga
"Throughput S-ALOHA CDM4 using technique of diversities MRC differential detected with L branch antenna has been analyzed Desired signal will be intercepted then combined and also analyzed the influence of co channel interference. By using two different model of fading between desired signal and interference signal, throughput can he analyzed under channel condition of Nakagami/ Nakagami and Rician/Nakagami. MRC diversities and differential detection (DPSK) with L branch antenna are used on receiver to overcome multi path fading interference and to increase the system performance. From the result indicating the use of L branch antenna at receiver make .system throughput becomes better The higher the amount of interference signals the worse throughput system. The bigger Nakagami parameter m, and Rician factor, K, of the desired signal and interference signal the better the throughput."
Jurnal Teknologi, 2006
JUTE-20-4-Des2006-252
Artikel Jurnal Universitas Indonesia Library
