grantor:
University of TorontoA packet-based, spread-spectrum, multiple-capture receiver scheme is proposed for the reverse channel of a cellular communication system in which the terminals utilize common codes to spread the initial portion of their transmissions which is required for capture and a temporarily assigned long spreading code for the data portion of the transmissions. Access to the reverse channel is controlled through a busy tone signal in the forward channel in order to prevent excessive multiple access interference at the receiver. A model of the receiver scheme is developed and simulated using bit and chip rates similar to those in third generation mobile communication systems. Packet-transmission capture, packet throughput, access delay and packet-erasure rates in the receiver scheme are investigated. In addition, the effect of intercell interference, path diversity, antenna selection diversity and slow terminal motion is also examined.M.A.Sc
