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ICASSP
2009
IEEE
13 years 11 months ago
Filter-and-forward distributed beamforming for relay networks in frequency selective fading channels
A half-duplex distributed beamforming technique for relay networks with frequency selective fading channels is developed. The network relays use the filter-and-forward (FF) strat...
Haihua Chen, Alex B. Gershman, Shahram Shahbazpana...
JSAC
2006
85views more  JSAC 2006»
13 years 4 months ago
Transmit selection diversity with maximal-ratio combining for multicarrier DS-CDMA wireless networks over Nakagami-m fading chan
Abstract--We propose the scheme to integrate transmit selection diversity/maximal-ratio combining (TSD/MRC) with multicarrier (MC) direct-sequence code-division multiple access (DS...
Jia Tang, Xi Zhang
GLOBECOM
2008
IEEE
13 years 11 months ago
Joint Power Loading of Data and Pilots in OFDM Using Imperfect Channel State Information at the Transmitter
— The search for optimality in the design of channel precoders and training symbols in block processing communication systems is one of paramount importance. Finding the best tra...
Chitaranjan P. Sukumar, Ricardo Merched, Ahmed M. ...
TMM
2002
139views more  TMM 2002»
13 years 4 months ago
Robust progressive image transmission over OFDM systems using space-time block code
A joint source-channel coding (JSCC) scheme for robust progressive image transmission over broadband wireless channels using orthogonal frequency division multiplexing (OFDM) syste...
Jie Song, K. J. Ray Liu
ICASSP
2011
IEEE
12 years 8 months ago
Robust secondary multicast transmit beamforming for cognitive radio networks under imperfect channel state information
Consider a robust downlink beamforming optimization problem for secondary multicast transmission in a multiple-input multiple-output (MIMO) spectrum sharing cognitive radio (CR) n...
Yongwei Huang, Qiang Li, Wing-Kin Ma, Shuzhong Zha...