Abstract—This paper introduces a multiple access scheme called CDMA/PRMA with
Piggybacked Reservation, which employ High Altitude Platforms (HAPs) as innovative
wireless base station with balanced cell coverage, to achieve higher statistical multiplexing
efficiency in the mixed CBR/VBR/ABR (constant, variable, and available bit rate) traffic
environment. The idea is to use HAP as mobile communication assisted system with almost
equal paths to communication nodes, while reducing signal impairment. The adopted