Beteiligte: | , |
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In: | Research Letters in Communications, 2008, 2008, S. 1-4 |
veröffentlicht: |
Hindawi Limited
|
Medientyp: | Artikel, E-Artikel |
Umfang: | 1-4 |
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ISSN: |
1687-6741
1687-675X |
DOI: | 10.1155/2008/546184 |
veröffentlicht in: | Research Letters in Communications |
Sprache: | Englisch |
Schlagwörter: | |
Kollektion: | Hindawi Limited (CrossRef) |
<jats:p>This letter presents an analytical model that jointly exploits the buffer dynamics of both the sending and receiving nodes to find the optimum number of byte-level and packet-level forward error correction (FEC) units for real-time multimedia transmission over wireless networks. The proposed analytical model first provides an optimum number of FEC units required at the byte-level, and then chooses the number of FEC units at the packet-level based on current channel and network conditions. The accuracy of the proposed model is dependent on two parameters: the variable deadline-time at the byte-level and fixed round-trip time (RTT) delay at the packet-level. Numerical results demonstrate the effectiveness of the model in reducing the unrecoverable error probability, which is achieved when the byte-level FEC scheme is supplemented by the packet-level FEC scheme.</jats:p> |