Title :
An adaptive cross-layer optimization scheme for high-definition video transmission based on IEEE 802.11n
Author :
Yan Wang ; Danpu Liu
Author_Institution :
Beijing Key Lab. of Network Syst. Archit. & Convergence, Beijing Univ. of Posts & Telecommun. Beijng, Beijing, China
Abstract :
As a novel branch of widely used Wi-Fi technology, IEEE 802.11n has improved its maximum data rate to 600Mbps, which makes the transmission of high-definition video possible. Although many techniques have been adopted to maximize data rate for high definition(HD) video transmission, very few researches keep an eye on video distortion in parallel with proper data rate. In this paper, we present a cross-layer optimization scheme for HD video transmission based on IEEE 802.11n, which can adaptively adjust quantization parameter (QP) on video coding layer (VCL) and modulation and coding scheme (MCS) on PHY to minimize the received video distortion. Simulation results prove that the proposed scheme can select a proper QP and MCS for a given SNR and obviously improve the quality of the received video in terms of PSNR.
Keywords :
high definition video; optimisation; quantisation (signal); video coding; wireless LAN; IEEE 802.11n; WiFi technology; adaptive cross layer optimization scheme; high definition video transmission; modulation and coding scheme; quantization parameter; video coding layer; video distortion; Approximation methods; Bit error rate; Encoding; IEEE 802.11n Standard; Optimization; PSNR;
Conference_Titel :
Communications, Circuits and Systems (ICCCAS), 2013 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4799-3050-0
DOI :
10.1109/ICCCAS.2013.6765200
