Peak-to-average power ratio of IEEE 802.11a PHY layer signals
Jayalath, Dhammika & Tellambura, Chintha (2002) Peak-to-average power ratio of IEEE 802.11a PHY layer signals. In Wysocki, Tadeusz A., Darnell, Michael, & Honary, Bahram (Eds.) Advanced Signal Processing for Communication Systems. Kluwer Academic Publishers (Springer), Boston, pp. 83-96.
In this chapter we propose clipping with amplitude and phase corrections to reduce the peak-to-average power ratio (PAR) of orthogonal frequency division multiplexed (OFDM) signals in high-speed wireless local area networks defined in IEEE 802.11a physical layer. The proposed techniques can be implemented with a small modification at the transmitter and the receiver remains standard compliant. PAR reduction as much as 4dB can be achieved by selecting a suitable clipping ratio and a correction factor depending on the constellation used. Out of band noise (OBN) is also reduced.
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|Item Type:||Book Chapter|
|Keywords:||IEEE 802.11a, Peak-to-average power, OFDM|
|Subjects:||Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > COMMUNICATIONS TECHNOLOGIES (100500) > Wireless Communications (100510)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
Past > Schools > School of Engineering Systems
|Deposited On:||30 Jul 2010 11:11|
|Last Modified:||11 Aug 2011 03:48|
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