Title :
Modulation and coding schemes for TDM/SS packet radio
Author :
Yates, K.W. ; Zaman, S.U.
Author_Institution :
Sch. of Electr. Eng., Sydney Univ., NSW, Australia
Abstract :
A novel frequency hopped spread spectrum packet radio communication system suitable for time division multiplexed, high speed indoor office wireless networks is proposed. The hopping is carried out at a logical level on the bit stream rather than physical hopping of the carriers. This on one hand eliminates phase problems associated with differential modulation along hopped carriers in frequency-selective fading channels, and on the other circumvents the need for agile frequency synthesizers. A coding strategy has been developed to provide the best error-rate performance under given channel conditions. System design issues are discussed and an example design is presented
Keywords :
differential phase shift keying; encoding; fading; frequency hop communication; indoor radio; packet radio networks; spread spectrum communication; time division multiplexing; wireless LAN; TDM/SS packet radio; bit stream; channel conditions; differential PSK modulation; error-rate performance; frequency diversity; frequency hopped spread spectrum; frequency-selective fading channels; indoor office wireless networks; logical level; packet radio communication system; phase modulation; system design; time division multiplexing; wireless local area networks; Bandwidth; Fading; Frequency diversity; Frequency synthesizers; Modulation coding; Packet radio networks; Phase modulation; Spread spectrum communication; Time division multiplexing; Wireless LAN;
Conference_Titel :
Spread Spectrum Techniques and Applications, 1994. IEEE ISSSTA '94., IEEE Third International Symposium on
Conference_Location :
Oulu
Print_ISBN :
0-7803-1750-5
DOI :
10.1109/ISSSTA.1994.379525
