Fuzzy Logic Control of Adaptive ARQ for Video Distribution over a Bluetooth Wireless Link
Bluetooth's default automatic repeat request (ARQ) scheme is not suited to video distribution resulting in missed display and decoded deadlines. Adaptive ARQ with active discard of expired packets from the send buffer is an alternative approach. However, even with the addition of cross-layer ad...
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| Format: | Article |
| Language: | English |
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Wiley
2007-01-01
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| Series: | Advances in Multimedia |
| Online Access: | http://dx.doi.org/10.1155/2007/45798 |
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| _version_ | 1849307218191581184 |
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| author | R. Razavi M. Fleury M. Ghanbari |
| author_facet | R. Razavi M. Fleury M. Ghanbari |
| author_sort | R. Razavi |
| collection | DOAJ |
| description | Bluetooth's default automatic repeat request (ARQ) scheme is not suited to video distribution resulting in missed display and decoded deadlines. Adaptive ARQ with active discard of expired packets from the send buffer is an alternative approach. However, even with the addition of cross-layer adaptation to picture-type packet importance, ARQ is not ideal in conditions of a deteriorating RF channel. The paper presents fuzzy logic control of ARQ, based on send buffer fullness and the head-of-line packet's deadline. The advantage of the fuzzy logic approach, which also scales its output according to picture type importance, is that the impact of delay can be directly introduced to the model, causing retransmissions to be reduced compared to all other schemes. The scheme considers both the delay constraints of the video stream and at the same time avoids send buffer overflow. Tests explore a variety of Bluetooth send buffer sizes and channel conditions. For adverse channel conditions and buffer size, the tests show an improvement of at least 4 dB in video quality compared to nonfuzzy schemes. The scheme can be applied to any codec with I-, P-, and (possibly) B-slices by inspection of packet headers without the need for encoder intervention. |
| format | Article |
| id | doaj-art-1cc3ad5eb936405a92896bbcb33a35ed |
| institution | Kabale University |
| issn | 1687-5680 1687-5699 |
| language | English |
| publishDate | 2007-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Multimedia |
| spelling | doaj-art-1cc3ad5eb936405a92896bbcb33a35ed2025-08-20T03:54:51ZengWileyAdvances in Multimedia1687-56801687-56992007-01-01200710.1155/2007/4579845798Fuzzy Logic Control of Adaptive ARQ for Video Distribution over a Bluetooth Wireless LinkR. Razavi0M. Fleury1M. Ghanbari2Department of Electronic Systems Engineering, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, UKDepartment of Electronic Systems Engineering, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, UKDepartment of Electronic Systems Engineering, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, UKBluetooth's default automatic repeat request (ARQ) scheme is not suited to video distribution resulting in missed display and decoded deadlines. Adaptive ARQ with active discard of expired packets from the send buffer is an alternative approach. However, even with the addition of cross-layer adaptation to picture-type packet importance, ARQ is not ideal in conditions of a deteriorating RF channel. The paper presents fuzzy logic control of ARQ, based on send buffer fullness and the head-of-line packet's deadline. The advantage of the fuzzy logic approach, which also scales its output according to picture type importance, is that the impact of delay can be directly introduced to the model, causing retransmissions to be reduced compared to all other schemes. The scheme considers both the delay constraints of the video stream and at the same time avoids send buffer overflow. Tests explore a variety of Bluetooth send buffer sizes and channel conditions. For adverse channel conditions and buffer size, the tests show an improvement of at least 4 dB in video quality compared to nonfuzzy schemes. The scheme can be applied to any codec with I-, P-, and (possibly) B-slices by inspection of packet headers without the need for encoder intervention.http://dx.doi.org/10.1155/2007/45798 |
| spellingShingle | R. Razavi M. Fleury M. Ghanbari Fuzzy Logic Control of Adaptive ARQ for Video Distribution over a Bluetooth Wireless Link Advances in Multimedia |
| title | Fuzzy Logic Control of Adaptive ARQ for Video Distribution over a Bluetooth Wireless Link |
| title_full | Fuzzy Logic Control of Adaptive ARQ for Video Distribution over a Bluetooth Wireless Link |
| title_fullStr | Fuzzy Logic Control of Adaptive ARQ for Video Distribution over a Bluetooth Wireless Link |
| title_full_unstemmed | Fuzzy Logic Control of Adaptive ARQ for Video Distribution over a Bluetooth Wireless Link |
| title_short | Fuzzy Logic Control of Adaptive ARQ for Video Distribution over a Bluetooth Wireless Link |
| title_sort | fuzzy logic control of adaptive arq for video distribution over a bluetooth wireless link |
| url | http://dx.doi.org/10.1155/2007/45798 |
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