A Novel Approach to Enhance the Physical Layer Channel Security of Wireless Cooperative Vehicular Communication Using Decode-and-Forward Best Relaying Selection

Figure 4

Precoder block diagram of the proposed DF cooperative scheme for an eavesdropper wire-tapper.

(a) Source precoder block diagram

(b) Selected relaying vehicle block diagram

(c) Destination/legitimate user precoder block diagram

(d) Eavesdropper/wire-tapper precoder block diagram