Service multiplexing and resource allocation in S-CDMA/PRMA LEO systems
Tóm tắt
This paper studies an adaptive CDMA/PRMA protocol for satellite LEO systems. The new protocol is called S-CDMA/PRMA (satellite-code division multiple access/packet reservation multiple access). The goal is to integrate several types of traffic (voice, file transfer and Web) on the channel. This leads to a service multiplexing and resource allocation study. New permission probability control functions are defined to give priority to voice traffic in order to guarantee its QoS. As a first step, we propose an analytical model for voice and file transfer data to calculate their performance. As Web traffic is very complicated to be studied analytically, we studied it by simulation. A simulation multiplexing several traffic types is also presented. The essential performance parameters are the loss probability for voice users and the waiting time for data users.
Từ khóa
#Resource management #Low earth orbit satellites #Multiaccess communication #Access protocols #Traffic control #Analytical models #Permission #Quality of service #Personal communication networks #Error analysisTài liệu tham khảo
10.1109/ICC.2002.997395
10.1007/978-0-387-35526-9_2
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