Impact of access scheme selectability on traffic performance in software-based wireless multimedia communications system

摘要

In software-based radios, for channel setup, each mobile terminal and each base station can select an appropriate transmission format, such as modulation/demodulation, encoding/decoding and multiple access schemes, according to the user's QoS (quality of service), channel assignment condition and so on. In this paper, in order to focus attention on the "access scheme" in the transmission format, we assume a software-based wireless multimedia communications system where TDMA and CDMA schemes are flexibly selectable, and discuss the "impact of access scheme selectability" on traffic performance.