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Spectrum aggregation (SA) is one of the potential LTE advanced technologies. The analysis and simulation for SA in LTE-Advanced system are addressed in this paper. We first analyze the system model of SA, and propose some evaluation methodologies for SA. Then the schedulers for SA with joint queue and disjoint queue are proposed. Finally, different traffic models are considered in the system level simulation to evaluate the performance gain of spectrum aggregation over deploying independent carriers on the eNode-B. The simulation results show that the SA technology can enhance the throughput, fairness and latency performance in LTE-Advanced system comparing with independent carrier scenario for different traffic models.
Date of Conference: 20-23 Sept. 2009