Local Area Networks (LAN) White Papers
Voice Over an OFDM Based Wireless LAN
Overview This paper addresses the problem of efficiently integrating speech communication devices, such as cordless telephones, with an "Orthogonal Frequency Division Multiplexing" (OFDM) based wireless LAN. It is argued that traditional "voice over IP" (VoIP) approaches are inefficient for wireless LANs in terms of system overheads, and that more recent proposals, such as the "5- UP" protocol, offer greater promise with the co-existence of OFDM, for high speech packetised data, and simpler (e.g. single carrier) modulation schemes for lower data-rate devices with real time quality of service requirements. A new way of supporting packetised voice is suggested here which is compatible with the IEEE 802.11a and 802.11g standards in "DCF" mode and the "EDCF" features being proposed for 802.11e.
| Publisher | University of Manchester | File Format | |
|---|---|---|---|
| Date Published | January 2004 | ||
| Format | White Papers | ||
| Topics | |||
-
Did you find this white paper useful? 7 out of 11 users found this white paper useful
White Paper RSS
Download
Register
