Small cells are expected to play an important role in future mobile networks. In such environments, proper handling of handoff traffic is of major importance. In this paper, we propose the single-threshold model for the analysis of handoff traffic in cellular CDMA networks. Based on this model, we are able to determine analytically the uplink blocking probabilities of handoff and new calls. This is done by describing the CDMA system as a Discrete-Time Markov Chain and by deriving an efficient recursive formula for the calculation of system state probabilities. The proposed analytical model is verified via simulation studies.
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