Throughput optimization in multi-cell CDMA networks

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Conference Proceeding

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In this paper, we investigate the performance of a multi-cell CDMA network by determining the maximum throughput that the network can achieve for a given gradeof-service requirement, quality-of-service requirement, network topology and call arrival rate profile. Our analysis is restricted to the reverse link and accounts for mobility of users between cells. A constrained nonlinear optimization problem is formulated that maximizes the network throughput subject to upper bounds on the blocking probabilities and a lower bound on the bit energy to interference ratio. The goal is to optimize the usage of network resources, provide consistent grade-of-service for all the cells in the network, and maintain a pre-specified quality-of-service. The solution to the optimization problem yields the maximum network throughput as well as the maximum number of calls that should be admitted in each cell for a given topology and call arrival rate profile. Our optimization algorithm yields significantly higher throughput compared with traditional call admission schemes. © 2005 IEEE.

Publication Source (Journal or Book title)

IEEE Wireless Communications and Networking Conference, WCNC

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