Cell Resizing Based Interference Reduction and Delay Avoid Rate Scheduling for WCDMA

In WCDMA, the interference is produced by different factors such as thermal noise, intra cell traffic, traffic in adjacent cells and external traffic. In addition, the increase in number of users in a cell consequently increases the total interference in the network. Hence, the interference must be controlled to improve the throughput of the network. In this paper, we propose an Interference Revocation Technique in WCDMA using Cell Resizing approach. Our technique classifies the access points into three types as normal, saturated and cooperative based on its signal to noise ratio (SNR). The saturated cell triggers the process of cell resizing. This process balances the number of users in each cell and thereby cancels the interference completely. We prove the efficiency of our technique through simulation results. And we proposed Delay Avoid Rate Scheduling Algorithm to allocate the optimum rate for each traffic queue. By simulation experiments, we have shown that the proposed algorithms achieve reduced call blocking probability, optimum rate with reduced delay. Index Terms – Call admission control, Cell Resizing, electromagnetic compatibility, Radio Frequency, Signal to Noise Ratio, Wide Band Code Division Multiple Access, Delay Avoid Rate Scheduling Algorithm