Access between 3G WCDMA multimedia wireless packet switched and fixed networks simulation using OPNETTM

A new resource management strategy, which improves packet latency and reduces signalling traffic, is proposed. The channel allocation algorithm proposed is efficient in that it allows an Orthogonal Variable Spreading Factor (OVSF) code to be allocated only whilst a user has packets to transmit. There are a limited number of downlink codes and the amount of signalling required will be evaluated. The system performance is evaluated in terms of packet latency, transmitted/received and dropped traffic for different applications, code request statistics and scramble code allocation at the Mobile Station (MS) and Base Station (BS).