Performance and capacity improvements of OFDM wireless LANs with multiple antennas and subchannel power control

Author

Gidlund, Mikael ; Åhag, Per

Author_Institution

Dept. of Inf. Technol. & Media, Mid Sweden Univ., Sweden

Volume

2

fYear

2003

fDate

23 Feb.-1 March 2003

Firstpage

1412

Abstract

Multiple transmit-and-receive antennas can be used in orthogonal frequency division multiplexing (OFDM) systems to improve communication quality and capacity. In this paper, we investigate the performance of a multiple antenna system with subchannel power control for OFDM Wireless LAN. Furthermore, we employed a turbo product code at the encoder to further enhance the quality of transmission for high data rate WLAN such as the ETSI BRAN HIPERLAN/2. Simulation results show that for a BER of 10^-4, we gain 4.4 dB for the proposed scheme with turbo block codes and subchannel power control compared to the standardized 5 GHz OFDM wireless LANs.

Keywords

OFDM modulation; antenna arrays; block codes; channel capacity; power control; receiving antennas; transmitting antennas; turbo codes; wireless LAN; 10^-4 bits; 4.4 dB; BER; ETSI BRAN HIPERLAN/2; OFDM WLAN; bit error rate; block turbo codes; communication capacity; communication quality; encoder; multiple receive antennas; multiple transmit antennas; orthogonal frequency division multiplexing; subchannel power control; transmission quality; turbo product codes; wireless local area network; Fading; Information technology; Local area networks; Mathematics; OFDM; Power control; Receiving antennas; Telecommunication standards; Transmitting antennas; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications, 2003. ICT 2003. 10th International Conference on

Print_ISBN

0-7803-7661-7

Type

conf

DOI

10.1109/ICTEL.2003.1191641

Filename

1191641