Title :
OFDM with diversity and coding for advanced cellular Internet services
Author :
Cimini, Leonard J., Jr. ; Sollenberger, Nelson R.
Author_Institution :
AT&T Bell Labs., Red Bank, NJ, USA
Abstract :
The rapid growth of wireless voice subscribers; the proliferation of the Internet; and the increasing use of portable computing devices suggest a very promising future for wireless data services. The key to realizing this potential is the deployment of robust, high-bit-rate, wide-area wireless networks. We describe a technique for achieving a reliable, high-speed (1-2 Mbps) wireless Internet service for mobile and portable cellular subscribers. We show, through simulations, that by combining orthogonal frequency division multiplexing (OFDM) modulation with multiple transmit antennas, receive antenna diversity, and Reed-Solomon coding, the link-budget and dispersive-fading limitations of the cellular mobile radio environment can be overcome and the effects of co-channel interference can be reduced
Keywords :
Internet; Reed-Solomon codes; cellular radio; cochannel interference; data communication; diversity reception; fading; frequency division multiplexing; interference suppression; land mobile radio; modulation coding; portable computers; quadrature phase shift keying; radio links; receiving antennas; transmitting antennas; 1 to 2 Mbit/s; OFDM; QPSK; Reed-Solomon coding; cellular Internet services; cellular mobile radio; cochannel interference reduction; dispersive-fading; high-speed wireless service; link-budget; mobile cellular subscribers; modulation; multiple transmit antennas; orthogonal frequency division multiplexing; portable computing devices; receive antenna diversity; simulations; wide-area wireless networks; wireless data services; wireless voice subscribers; Computational modeling; Diversity reception; Mobile antennas; Modulation coding; OFDM modulation; Portable computers; Receiving antennas; Robustness; Web and internet services; Wireless networks;
Conference_Titel :
Global Telecommunications Conference, 1997. GLOBECOM '97., IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-4198-8
DOI :
10.1109/GLOCOM.1997.632559
