Two-way Wireless Video Communication using Randomized Cooperation,   Network Coding and Packet Level FEC
  Two-way real-time video communication in wireless networks requires high bandwidth, low delay and error resiliency. This paper addresses these demands by proposing a system with the integration of Network Coding (NC), user cooperation using Randomized Distributed Space-time Coding (R-DSTC) and packet level Forward Error Correction (FEC) under a one-way delay constraint. Simulation results show that the proposed scheme significantly outperforms both conventional direct transmission as well as R-DSTC based two-way cooperative transmission, and is most effective when the distance between the users is large. 
Xiaozhong Xu, Ozgu Alay, Elza Erkip, Yao Wang and Shivendra Panwar
cs.IT cs.NI math.IT