Congestion Control Mechanism for WCDMA Based Wireless Networks
WCDMA network is an important air interface technologies for cellular wireless networks. Traditionally in these wireless access networks, the base stations are connected to radio network controller or base station controller by Point to Point links. These Links are expensive and their use imposes and ongoing cost on the service providers. In such networks, reliability comes at a high price. As WCDMA-based cellular networks mature, the current point-to-point links will evolve to an IP-based Radio Access Network (RAN). While the use of RAN has many advantages, mechanisms must be designed to control the IP Radio Access Network congestion. Congestion occurs when the offered traffic exceeds the engineered IP RAN capacity.