Two considerably different control strategies for dual-modedigital cellular networks are examined and compared. In one strategy, anumber of channels is allocated to each type of traffic; in the otherstrategy, a threshold is placed on the number of available channelsbefore an analog call request is served. It is shown that a no-controlstrategy is clearly not desirable from a performance point of view. Atlow to moderate fractions of analog traffic, the improvement in theprobability of blocking is significant if one of the two strategiesdiscussed is employed. Some what surprisingly, it is found that bothcontrol strategies resulted in approximately the same performance,implying that either strategy could be used with the same resultingperformance. Thus, from a practical point of view, one would use thestrategy that has implementational advantages. Another implication isthat there may be other strategies that perform even between
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