JCCA resource allocation for video transmission in OFDMA relay system

In this paper, we propose a joint content and channel aware (JCCA) resource allocation algorithm for video transmission in OFDMA relay system. It can maximize accumulation of allocated subcarriers' contribution for video transmission so as to improve overall quality of users' received video under resource constrained conditions. As is explained in this work, the algorithm is implemented by packet scheduling, path selection and subcarrier allocation, in which time-varying data content and channel state are jointly considered at the same time. In the simulation results, we make comparison between the JCCA resource allocation algorithm and others for video transmission in OFDMA relay system. It is demonstrated that the proposed algorithm can perform better in improving overall quality of users' received video.