Title :
Multibeam antenna with decision-feedback equalization for home wireless communications
Author :
Kuo-Hui Li ; Ingram, M.A. ; Rausch, E.O.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
A multibeam beamformer is considered for the base station in a single-cell 100 Mbps TDMA/QPSK indoor wireless network at 24 GHz. Using a previously reported statistical propagation model that forms clusters of paths in angle and delay, we evaluate the performance of an RF beamformer in combination with a decision feedback equalizer (DFE) for indoor wireless communications. Based on the model, we calculate the required SNR (dB) per bit as a function of the number of beams in the beamformer, amount of tapering on the beams, the number of forward taps in the DFE, and selection combining versus optimal baseband two-beam combining for an outage probability of 10/sup -2/ with a BER threshold of 10/sup -5/.
Keywords :
array signal processing; cellular radio; decision feedback equalisers; delays; error statistics; indoor radio; linear antenna arrays; microwave propagation; multibeam antennas; multipath channels; multiuser channels; quadrature phase shift keying; radio networks; statistical analysis; time division multiple access; 100 Mbit/s; 24 GHz; BER threshold; DFE; RF beamformer; SNR; base station; decision feedback equalizer; decision-feedback equalization; forward taps; home wireless communications; indoor wireless communications; linear antenna arrays; multibeam antenna; multibeam beamformer; multipath propagation model; optimal baseband two-beam combining; outage probability; performance evaluation; selection combining; single-cell TDMA/QPSK indoor wireless network; statistical propagation model; Antennas and propagation; Base stations; Decision feedback equalizers; Diversity reception; Propagation delay; Quadrature phase shift keying; Radio frequency; Time division multiple access; Wireless communication; Wireless networks;
Conference_Titel :
Radio and Wireless Conference, 1999. RAWCON 99. 1999 IEEE
Conference_Location :
Denver, CO, USA
Print_ISBN :
0-7803-5454-0
DOI :
10.1109/RAWCON.1999.810921
