Title :
Beam-forming for MC-CDMA systems
Author :
Venkatasubramanian, R. ; Tsai, Jiann-An ; Buehrer, R. Michael
Author_Institution :
Mobile & Portable Radio Res. Group, Virginia Tech., Blacksburg, VA, USA
Abstract :
In this paper, the use of adaptive antenna arrays for MC-CDMA systems in an interference-dominated environment is investigated. We present two different beam-forming approaches, namely, frequency domain and time domain beam-forming. Beam-forming performance over different channel conditions such as flat fading, frequency selective fading, low and high angle spreads and low and high Doppler spreads are studied.
Keywords :
adaptive antenna arrays; adjacent channel interference; array signal processing; beam steering; channel estimation; code division multiple access; fading channels; least mean squares methods; Doppler spreads; ICI suppression; MC-CDMA systems; MMSE detection; adaptive antenna arrays; beam-forming; channel conditions; channel estimation; flat fading; frequency selective fading; high angle spreads; interference-dominated environment; low angle spreads; wideband interference; Adaptive arrays; Antenna arrays; Array signal processing; Bandwidth; Delay effects; Fading; Frequency domain analysis; Interference; Multicarrier code division multiple access; OFDM;
Conference_Titel :
Circuits and Systems, 2002. MWSCAS-2002. The 2002 45th Midwest Symposium on
Print_ISBN :
0-7803-7523-8
DOI :
10.1109/MWSCAS.2002.1187068
