Abstract
Transmitting large packets over wireless networks helps to reduce header overhead, but may have adverse effect on loss rate due to corruptions in a radio link. Packet loss in lower layers, however, is typically hidden from the upper protocol layers by link or MAC layer protocols. For this reason, errors in the physical layer are observed by the application as higher variance in end-to-end delay rather than increased packet loss rate. In this paper, we study the effect of packet size on loss rate and delay characteristics in a wireless real-time application. We derive analytical model for the dependency between packet length and delay characteristics. We validate our theoretical analysis through experiments in an ad hoc network using WLAN technologies. We show that careful design of packetization schemes in the application layer may significantly improve radio link resource utilization in delay sensitive media streaming under difficult wireless network conditions.
Original language | English |
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Article number | NET17-4 |
Pages (from-to) | 1608-1613 |
Number of pages | 6 |
Journal | IEEE Wireless Communications and Networking Conference, WCNC |
Volume | 3 |
Publication status | Published - 2005 |
Event | 2005 IEEE Wireless Communications and Networking Conference, WCNC 2005: Broadband Wirelss for the Masses - Ready for Take-off - New Orleans, LA, United States Duration: 13 Mar 2005 → 17 Mar 2005 |
Keywords
- Digital wireless channel
- Packet error model
- Packet-switched wireless networking
- Wireless multimedia streaming