Abstract
Two considerably different control strategies for dual-mode digital cellular networks are examined and compared. In one strategy, a number of channels is allocated to each type of traffic; in the other strategy, a threshold is placed on the number of available channels before an analog call request is served. It is shown that a no-control strategy is clearly not desirable from a performance point of view. At low to moderate fractions of analog traffic, the improvement in the probability of blocking is significant if one of the two strategies discussed is employed. Some what surprisingly, it is found that both control strategies resulted in approximately the same performance, implying that either strategy could be used with the same resulting performance. Thus, from a practical point of view, one would use the strategy that has implementational advantages. Another implication is that there may be other strategies that perform even between. >
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