Abstract
In this paper, a joint CDMA/TDMA protocol has been proposed for integrated video-phone/voice/data traffic in personal communication networks (PCN). The videophone service is implemented according to H.261 standard. The concept of dynamic boundary is adopted in both code and time domains to meet the different requirements for videophone, voice and data traffic. Two mathematical analysis methods are adopted to evaluate the system performance. One is the traditional Markov analysis (TDMA), which is used to calculate the average videophone and voice call blocking probabilities. The other is Transient Fluid Analysis (TFA), which is adopted to evaluate the data delay and channel utilization performance. Results show that two dynamic boundaries can be adjusted to achieve the optimal system performance, and suggestions of how to adjust these boundaries are also given.
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