This paper presents a performance evaluation of IEEE 802.16e protocol. The 802.16e PHY/MAC protocol for wireless MAN has been applied to a high altitude platform (HAP) architecture with another protocol family member: 802.16SC (single carrier). In this work an HAP serves a rural scenario with low multipath effects. Two different time-variant wireless channels have been considered: the first one for a HAP- mobile user link that is characterized by path loss and doppler effects and the second one for a mobile user - mobile user link that presents also multipath fading. Many simulation scenarios with different mobility user speeds and different modulations are reported and interesting results concerning the PER of both channel, the first under single carrier (SC), and the second under an OFDM modulation, a specific multicarrier modulation, are presented. Thus PER evaluation under different modulation and for different payload sizes are presented. Simulation results showed good channel performance if the mobility of the user is low or the mobile user is near the vertical axis of the HAP segment, but also if QPSK modulation is used. Finally Matlab elaboration to obtain PER polynomial function are presented.
['Floriano De Rango', 'Andrea Malfitano', 'Salvatore Marano']
SAT05-5: PER Evaluation for IEEE 802.16 - SC and 802.16e Protocol in HAP Architecture with User Mobility under Different Modulation Schemes