Wireless LAN White Papers
On the Effect of Inband Signaling and Realistic Channel Knowledge on Dynamic OFDM-FDMA Systems
Overview Dynamically assigning subcarriers of OFDM systems to multiple different terminals in a cell has been shown to be beneficial in terms of different transmission metrics. However, the success of such a scheme depends on the ability of the access point to inform terminals of their newest subcarrier assignments as well as on the accuracy of the channel state information used to generate new assignments. It is not clear whether the overhead required to implement these two system abilities consumes all of the potential performance increase possible by dynamically assigning subcarriers. In this paper, a specific MAC structure is selected enabling the operation of a dynamic OFDM system. Then, the authors study the question of the required overhead.
| Publisher | Technical University of Berlin | File Format | |
|---|---|---|---|
| Date Published | April 2007 | ||
| Format | White Papers | ||
| Topics | |||
-
Did you find this white paper useful?
White Paper RSS
Download
Register
