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The long propagation delay and the high bit error rate of underwater acoustic channel greatly affect the performance efficiency of underwater acoustic networks (UWANs). In this paper, we propose three ARQ schemes for UWANs, namely selective repeat-ARQ, Type-I Hybrid ARQ and Type-II Hybrid ARQ, where the transmissions of data and acknowledgment packets are interlaced. The proposed ARQ schemes are designed...
The characteristics of the underwater acoustic communication, such as large propagation delay, high bit error rate and half-duplex, bring great challenges to traditional automatic repeat request (ARQ) schemes. In this paper, we propose two hybrid ARQ (HARQ) schemes, Type-I HARQ and Type-II HARQ, for the underwater acoustic system according to the specific characteristics of the underwater acoustic...
The data-link layer protocol is of great significance for the effectiveness and reliability of the transmission. In terrestrial wireless networks, there are three error control protocols in data-link layer, stop-wait ARQ, go-back-N ARQ and selective ARQ. Moreover, LT code, an advanced error control mechanism, is proposed and widely used in deep space communications or other erasure channels. However,...
In this paper, we propose a cross-layer model to provide reliable video stream transmission in the mobile environment. In the proposed model, the application-layer forward error correction (A-FEC) parameters at the application layer, the ARQ parameters at the data link layer and the adaptive modulation and coding parameters at the physical layer are jointly designed. By maximizing the number of correctly...
To provide reliable video stream transmission over wireless networks, we propose a cross-layer design model in this paper. In the proposed model, the adaptive modulation and coding parameters at the physical layer, the ARQ parameters at the data link layer and the application-layer forward error correction (A-FEC) parameters at the application layer are jointly designed. Our objective is to maximize...
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