H.264 Wireless Video Telephony Using Iteratively-Detected Binary Self-Concatenated Coding

Abstract

Abstract-In this contribution we propose a robust H.264 coded wireless video transmission scheme using iteratively decoded self-concatenated convolutional coding (SECCC). The proposed SECCC scheme is composed of constituent recursive systematic convolutional (RSC) codes and an interleaver is used to randomise the extrinsic information exchanged between the constituent RSC codes. Additionally, a puncturer is used to increase the achievable bandwidth efficiency. At the receiver selfiterative decoding is invoked between the hypothetical decoder components. The performance of the system was evaluated using the H.264/AVC source codec for interactive video telephony. Furthermore, EXIT charts were utilised in order to analyse the convergence behaviour of the SECCC scheme advocated. We demonstrate the efficiency of this approach by showing that the video quality is significantly improved, when using the binary SECCC scheme. More explicitly, the proposed system exhibits an E b /N0 gain of 6 dB at the PSNR degradation point of 2 dB in comparison to the identical-rate benchmarker carrying out RSC coding and puncturing, while communicating over correlated Rayleigh fading channels.

On the Performance of Self‐Concatenated Coding for Wireless Mobile Video Transmission Using DSTS‐SP‐Assisted Smart Antenna System

“…The corresponding trajectories confirm this claim by iterating between the component EXIT curves to attain the highest value of extrinsic information. Furthermore, it is worth mentioning that the DSTS-SP SECCC offers a fruitful approach by converging at considerably lower E b /N 0 than the solely SECCC scheme of [8]. Figure 5 depicts the BER performance of the proposed system in comparison with the identical rate DSTS-SP RSC and SECCC scheme as in Table 2.…”

“…One popular channel coding technique, known as Forward Error Correction (FEC), is very much beneficial to protect the compressed stream from errors. Hence, it is plausible that for reliable transmission of multimedia contents over nonideal channels, it is necessary to perform source coding and channel coding [7][8][9]. With this, the terminology of Joint Source-Channel Decoding (JSCD) is coined, as explained for H.264 in [10].…”

“…Keeping in view the above background, we aim to introduce a novel methodology of SElf-Concatenated Convolutional Coding (SECCC), with iteratively detected SP modulation-assisted DSTS-based smart antennas. This article is somehow an extension of the work presented in [8]. We build upon the system proposed in [8] such that the beneficial feature of DSTS-SP is incorporated for an enhanced performance.…”

“…This article is somehow an extension of the work presented in [8]. We build upon the system proposed in [8] such that the beneficial feature of DSTS-SP is incorporated for an enhanced performance. The iteratively decoded DSTS-SP SECCC proposition will be analyzed via the EXtrinsic Information Transfer (EXIT) chart curves.…”