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

fYear

2002

fDate

18-20 June 2002

Firstpage

82

Lastpage

83

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICCE.2002.1013936

Filename

1013936