In the frame of the distributed video coding,the exact estimate for the statistic between the WZ frame and assistant side information,the exact model and estimated parameters for virtual correlative channel is important to improve the coding compress efficiency and the control of the code rate.

To realize multiuser diversity in slow fading correlated channels,We adopt random beamforming technique and propose to construct random beamforming matrix exploiting virtual channel representation.

By scheduling virtual channels, AOS generates a single data flow to transfer data which includes science data、audio、video、p icture、telemetry and telecommand.

Analysis and simulation performance of concatenated space-time code in correlated channel;

Due to the performance degradation of subspace-based blind decoding of space-time block codes(STBC) over spatially correlated channels,a revised decoding algorithm was proposed.

Analyzes the necessity to select antenna with partial channel-state information,and investigates the effects of angular spread,signal to noise ratio(SNR) and antenna configuration at transmitter on the capacity of MIMO system with correlated channel taken into account.

A novel auto relevance feedback image retrieval method called the outer auto relevance feedback(OARF) is proposed based on the pseudo-relevance feedback technology.