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首页> 外文期刊>IEEE Transactions on Consumer Electronics >Multi-stages hybrid ARQ with conditional frame skipping and reference frame selecting scheme for real-time video transport over wireless LAN
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Multi-stages hybrid ARQ with conditional frame skipping and reference frame selecting scheme for real-time video transport over wireless LAN

机译：具有条件帧跳过和参考帧选择方案的多级混合ARQ，用于无线LAN上的实时视频传输

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摘要

This paper proposes a multi-stages hybrid ARQ/FEC scheme with frame skipping, reference frame selecting and intra-frame refreshing techniques for H.26L real-time video streaming over WLAN. In this paper, adaptive ARQ/FEC is adopted to save unnecessary FEC overhead; conditional frame skipping is adopted to avoid ETE delay inflation due to MAC ARQ/FEC error recovery; reference frame selecting is adopted to save bandwidth; intra-frame refreshing is adopted to prevent residual error propagation among consecutive frames. Through analysis and simulation, we show that multi-stages hybrid ARQ scheme has the following key properties: (1) high error recovery rate for real-time video frames, (2) excellent sea/ability, (3) high transmission efficiency. In case of severe unreliable channel, which causes losing a lot of IP packets, we obtain a peak signal-to-noise ratio improvement up to about 10 dB compared to the hybrid ARQ proposed in [A. Majumdar et al., June 2002].
机译：本文提出了一种具有跳帧，参考帧选择和帧内刷新技术的多阶段混合ARQ / FEC方案，用于WLAN上的H.26L实时视频流。本文采用自适应ARQ / FEC来节省不必要的FEC开销。采用有条件跳帧，以避免由于MAC ARQ / FEC错误恢复而导致ETE延迟膨胀；采用参考帧选择节省带宽。采用帧内刷新以防止残留错误在连续帧之间传播。通过分析和仿真，我们表明多级混合ARQ方案具有以下关键特性：（1）实时视频帧的错误恢复率高；（2）出色的海/容量；（3）高传输效率。在严重的不可靠信道导致丢失大量IP数据包的情况下，与[A.]中提出的混合ARQ相比，我们获得了高达约10 dB的峰值信噪比改善。 Majumdar等，2002年6月]。

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