Title :
OFDM based high-speed wireless access for Internet applications
Author :
Chuang, Justin C I ; Li, Ye ; Sollenberger, Nelson R. ; Lin, Lang
Author_Institution :
AT&T Bell Labs., Red Bank, NJ, USA
Abstract :
We present physical and MAC layer techniques for high-speed wireless access to the Internet based on OFDM. Using dynamic packet assignment (DPA) for interference avoidance based on two examples of resource definition with different time and frequency units, we demonstrate that OFDM has significant flexibility to provide high transmission rates on demand with different available bandwidths. Innovations in radio link design, such as joint channel estimation and maximum likelihood decoding as well as interference suppression can be readily applied to coded OFDM systems. Significant performance gain in packet data throughput is realized in a system with aggressive frequency reuse
Keywords :
Internet; OFDM modulation; access protocols; cellular radio; frequency allocation; interference suppression; maximum likelihood decoding; modulation coding; packet radio networks; parameter estimation; radio links; radiofrequency interference; GSM; Internet; Internet applications; MAC layer techniques; OFDM; bandwidth; coded OFDM systems; dynamic packet assignment; frequency reuse; frequency units; high transmission rates; high-speed wireless access; interference suppression; joint channel estimation; maximum likelihood decoding; medium access control protocol; packet data throughput; physical layer techniques; quality of service; radio link design; radio system performance; resource definition; spectrum efficiency; time units; Bandwidth; Channel estimation; Interference suppression; Internet; Maximum likelihood decoding; OFDM; Performance gain; Radio link; Technological innovation; Throughput;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2000. PIMRC 2000. The 11th IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-6463-5
DOI :
10.1109/PIMRC.2000.881532
