&lt;title&gt;Video delivery over wireless channel with dynamic QoS control&lt;/title&gt;

Wang, Sherry; Zheng, Harold; Copeland, John A.

doi:10.1117/12.382962

Cited by 4 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There are many ways of providing transportation priorities. For example, the transportation priorities were provided by different forward error correction (FEC) codes in [6][7][8][9][10], different automatic repeat request (ARQ) schemes in [11], different modulations in [12], different network quality of service (QoS) classes in [13], and different network routing paths in [14]. Error-resilient schemes [15,16] are also considered as a form of JSCC.…”

Section: Introductionmentioning

confidence: 99%

Robust JPEG image transmission using unequal error protection and code combining

Fowdur

Soyjaudah

2007

Int J Communication

View full text Add to dashboard Cite

SUMMARYJPEG image transmission over noisy channels is highly problematic due to the sensitivity of the JPEG bit stream to error propagation. The use of resynchronization markers and channel coding do not alleviate the problem completely thus making retransmissions inevitable. In packetized image transmission, image packets are repeated n times, to ensure reliable transmission. This paper proposes a new unequal error protection (UEP) scheme which jointly optimizes the allocation of channel code rates and number of repeats to image packets, subject to a constraint on the maximum overall transmission rate. The coding scheme used is the rate compatible punctured convolutional code coupled with the code-combining technique. An unequal allocation of headers to the image packets is also performed in order to reduce the overall distortion due to error propagation. Simulation results show that the proposed UEP scheme provides a gain of more than 8 dB in peak-to-peak signal-to-noise ratio over a tandem scheme. The flexibility of the proposed scheme, and the major performance gains obtained, make the scheme appealing for applications like, web-based image browsing, multi-hop networks, and wireless image transmission.

show abstract

Section: Introductionmentioning

confidence: 99%

Robust JPEG image transmission using unequal error protection and code combining

Fowdur

Soyjaudah

2007

Int J Communication

View full text Add to dashboard Cite

show abstract

“…There are many ways to provide transportation priorities. For example, the transportation priorities are provided by different FEC codes in [24,25,26,27,28], different ARQ schemes in [29], different modulations in [30], different network QoS classes in [31], and different network routing paths in [32].…”

Section: Joint Source and Channel Codingmentioning

confidence: 99%