Buffer size resilience for Bluetooth video streams from adaptive ARQ with active discard

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Buffer size resilience for Bluetooth video streams from adaptive ARQ with active discard

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Published

ARQ in various forms is an important defence against RF error bursts but needs to be adaptive when delay sensitive encoded video is transmitted. It is demonstrated that adaptive ARQ itself is sensitive to mobile device buffer size and should be combined with an active discard policy based on picture type. For some Bluetooth send buffer sizes, this leads to up to 10 dB improvement in delivered video quality over adaptive ARQ alone.

Inspec keywords: Bluetooth; video coding; video communication; video streaming; automatic repeat request

Other keywords: Bluetooth video streams; buffer size resilience; active discard policy; adaptive ARQ; delay sensitive encoded video; mobile device buffer size; RF error bursts

Subjects: Image and video coding; Radio links and equipment; Multimedia communications; Protocols

References

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      • Ebert, J.-P., Willig, A.: `A Gilbert-Elliot bit-error model and the efficient use in packet simulation', Tech. Rep. TKN-99-2002, Technical University Berlin, 1999.
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      • Razavi, R., Fleury, M., Ghanbari, M.: `Detecting congestion within a Bluetooth Piconet: video streaming response', London Communications Symp., 2006, p. 181–184.
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