Title :
Adaptive allocation of variable length codes for video transmission over OFDM system
Author :
Salim, Omar Hazim
Author_Institution :
Comput. Dept., Univ. of Mosul, Mosul
Abstract :
This paper proposes a sub-channel partitioning based on adaptive allocation of Variable Length Codes (VLCs) with Unequal Error Protection (UEP) scheme for Orthogonal Frequency Division Multiplexing (OFDM) system. In this scheme, video data is partitioned into high-priority (HP) and low-priority (LP) coefficients according to the importance of the data, then it is allocated to sub-channels for transmission over OFDM system. A proposed technique is applied by interleaving the Resynchronization Markers between VLCs to isolate the propagation of error over video stream and completed by another technique to improve the performance of the video decoder decision at lower values of Signal to Interference Noise Ratio (SINR).
Keywords :
OFDM modulation; adaptive codes; variable length codes; video communication; video streaming; adaptive allocation; high-priority coefficients; low-priority coefficients; ofdm system; orthogonal frequency division multiplexing system; resynchronization markers; signal to interference noise ratio; subchannel partitioning; unequal error protection scheme; variable length codes; video decoder decision; video stream; video transmission; Computer errors; Decoding; Discrete cosine transforms; Educational institutions; Electric breakdown; Error correction codes; OFDM; Signal to noise ratio; Streaming media; Video compression; OFDM; UEP; Video transmission;
Conference_Titel :
Systems, Signals and Devices, 2008. IEEE SSD 2008. 5th International Multi-Conference on
Conference_Location :
Amman
Print_ISBN :
978-1-4244-2205-0
Electronic_ISBN :
978-1-4244-2206-7
DOI :
10.1109/SSD.2008.4632862
