Description  Claims  Drawing  Cited references 

US61157144   [0001] 
US7457588B2   [0005] 
US2006274712A1   [0007] 
WO02078211A2   [0008] 
US7457588B   [0020] 
US716032   [0046] 
US716064   [0068] 

A joint Feedback Reduction Scheme Using Delta Modulation for Dynamic Channel Allocation in OFDMA Systems   [0006] 
A Channel Model for Ultra Wideband Indoor Communication   [0027] 
Performance Analysis of Multiband OFDM UWB Communications with Application to Range Improvement   [0027]