| Summary: | 碩士 === 國立成功大學 === 電機工程學系 === 87 === In today's mobile communication systems, a major tendency
is to provide multi-media communication capability. In order to
efficiently utilize the bandwidth of cellular mobile system and
offer high quality service to both voice and data users, we
propose a protocol to integrate packet-switched data traffic into
current TDMA-type circuit-switched digital voice system. In this
thesis, we analyze the performance of the proposed system, which
transmits data packets in the silent periods of a conversation
with voice-activity detection and adapts itself to the GSM/GPRS
system which uses the idle channels to provide data services. We
show that the proposed method can increase the bandwidth
utilization efficiency as well as reduce the data transmission
delay, while still keep high quality of voice services.
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