Title :
A QAM scheme for fast wireless Internet and multimedia services
Author :
Fong, B. ; Hong, G.Y. ; Fong, A.C.M.
Author_Institution :
Auckland Univ. of Technol., New Zealand
Abstract :
Wireless wideband communication systems provide high data transmission rates suitable for fast Internet access. This paper presents a modulation scheme for Local Multipoint Distribution Service (LMDS), which improves coverage under rainy weather conditions. Following a comparison of a number of modulation schemes with a 26 GHz carrier, a 16-QAM system is found to offer good compromise between coverage and receiver structure complexity. The effects of rain attenuation increase with carrier frequency. System performance varies significantly depending on whether the system is operated on a dry day or under heavy rain.
Keywords :
Internet; cellular radio; data communication; mobile computing; multimedia communication; packet radio networks; quadrature amplitude modulation; radio access networks; rain; 16-QAM system; 26 GHz; LMDS; Local Multipoint Distribution Service; carrier frequency; coverage; data transmission rates; fast Internet access; modulation scheme; multimedia services; rain attenuation; rainy weather conditions; receiver structure complexity; system performance; wireless wideband communication; Attenuation; Bit error rate; Cellular phones; Data communication; Frequency; Quadrature amplitude modulation; Radio spectrum management; Rain; System performance; Web and internet services;
Conference_Titel :
Consumer Electronics, 2002. ICCE. 2002 Digest of Technical Papers. International Conference on
Conference_Location :
Los Angeles, CA, USA
Print_ISBN :
0-7803-7300-6
DOI :
10.1109/ICCE.2002.1013936
