User capacity of circuit switched voice over time-shared wireless packet data channels

In traditional wireless networks, real-time services (e.g., voice) are transported over synchronous channels because of their delay sensitivity while data is transported over asynchronous channels because of its burstiness. It has recently been suggested that even real time services can be efficiently transported over asynchronous channels such as the time shared channels available in 3G networks such as in 1xEV-DO and 1xEV-DV. In this paper we determine the user capacity of traditional circuit switched voice. Our focus is on the forward channel since the reverse channel typically uses dedicated CDM channels for voice.