The Wireless Application of Space-Time Spread-Spectrum Technology in the Internet of Things
Han Cheng Liao · Advanced materials research · 2011
Massive data have to be quickly communicated in the internet of things with few error. Two good anti-fading technologies, spread spectrum and space-time coding technology are integrated to get better performance of combating fading in the wireless channel. Such kind of code division multiple access system is studied. A kind of well-chosen spread spectrum sequence is LAS code. The forward link system model, including both the transmitter and the receiver, is put forward. The decoding method, as well as some simulational performance results is given. With more than one antenna installed, it is able to achieve both the temporal diversity and the spatial diversity, which is conducive to enhance the system performance.