Application of Space-Time Linear Block Codes to Parallel Wireless Relays

The designs of cooperative diversity for parallel wireless relays have recently 
been discovered, and their potential to increase network capacity has been found 
to be significant. I will introduce recent contributions in this area, 
especially focus on space-time linear block modulation. The structures of the 
signals and noise received at a destination assisted by multiple relays with 
space-time modulations are examined. An analytical study of the diversity factor 
achievable by two relays with orthogonal space-time modulation is given.  This 
insight explains a difference between the diversity of multiple relays and the 
diversity of multiple receivers/transmitters.