Title :
JCCA resource allocation for video transmission in OFDMA relay system
Author :
Yimin Zhang ; Guizhong Liu
Author_Institution :
Sch. of Electron. & Inf. Eng., Xi´an Jiaotong Univ., Xi´an, China
Abstract :
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.
Keywords :
OFDM modulation; channel allocation; frequency division multiple access; relay networks (telecommunication); resource allocation; scheduling; video communication; JCCA resource allocation; OFDMA relay system; allocated subcarrier contribution accumulation; channel state; joint content and channel aware resource allocation algorithm; packet scheduling; path selection; time-varying data content; user received video quality; video transmission; Decoding; Delays; Downlink; OFDM; Relays; Resource management; Scheduling algorithms; OFDMA; relay; resource allocation; video transmission;
Conference_Titel :
Computer Communication and Networks (ICCCN), 2014 23rd International Conference on
Conference_Location :
Shanghai
DOI :
10.1109/ICCCN.2014.6911834
