Simulasi dan Analisis Kualitas Layanan pada Jaringan Mobile WIMAX

Type scheduling contained in the mobile WiMAX is UGS, rtPS, nrtPS, BE and ErtPS. The software used isthe OPNET Modeler 14.5 Educational Version. Specification node from the network are made as follows: 1MS, 7 BS, 2 IP cloud that functioned as an IP backbone and server backbone, 1 ASN gateway (design model2), wimax config, application config, config profile and 1 server. The application used such as FTP, voice,video, web browsers and e-mail. The output like througphut after adding ASN gateway node the value approaching to zero after which time 500 seconds. The output measured in units of time such as: DRT, PRT,PED delay and jitter have the difference value but tended to decrease

Gain Characteristics Of Avalanche Photodiodes Based On Carrier Pair Injected Positions

Mean gain characteristics based on carrier pair injected position in avalanche photodiodes (APDs) is investigated by mean of the Random Path Length (RPL) Model that incorporates the carrier history. The model creates a randomly carrier path length to impact ionize following the dead space distance. Dead space distance is a minimum distance required for a carrier to travel to get adequate energy to impact ionizes. Under consideration is an ideal structure that is assumed has a dimensionless multiplication length and a uniform electric field. The simulation will be carried out for double carrier multiplication APDs with various dead spaces distances. An electron-hole pair in various positions is injected into avalanche photodiodes. The mean gain is recorded based on these injected positions of the carriers