课程名称︰无线网络基础与应用
课程性质︰选修
课程教师︰蔡欣穆
开课学院：电资学院
开课系所︰资工所、网媒所
考试日期（年月日）︰2016.03.04
考试时限（分钟）：
试题 :
1. List two multiplexing schemes that are used in the WiFi system and explain
why.
2. Show the transmitted waveform of bit pattern "1001" in a QPSK system. You
have to specify the mapping between the waveform and the bit pattern.
(QPSK = 4PSK)
3. In a QASK system, if you want to achieve 4 Mbps data rate, what would be
the symbol duration?