NDLI: Peak to average power ratio in WLAN-OFDM system

Content Provider	IEEE Xplore Digital Library
Author	Ngajikin, N. Fisal, N. Yusof, S.K.
Copyright Year	2003
Description	Author affiliation: Fakulti Kejuruteraan Elektrik, Universiti Teknologi Malaysia, Johor, Malaysia (Ngajikin, N.; Fisal, N.; Yusof, S.K.)
Abstract	Orthogonal frequency division multiplexing (OFDM) is one of the multicarrier modulation techniques that can reduce the ISI and delay spread of signal. This technique also allows subchannel to overlap. The orthogonality of the subchannels reduce the bandwidth (BW) and increase the spectral efficiency of system. Due to the numerous advantages of this system, it has been successfully applied in wide variety of digital communications over the past several years and has been adapted to the wireless LAN standards. However, the power amplifier of OFDM system dynamic range is typically two or four times larger than a single carrier system. The increments of the dynamic range will lead to the increasing in cost, power consumption of transmitter amplifier and also lead to high peak to average power ratio (PAPR). This is the major drawback of this system. This paper analyzes the behavior of PAPR in the WLAN-OFDM system. The model was designed based on the WLAN 802.11a standard. The simulation and analysis are based on two perspectives; combination bit (codeword) and code length effect on the PAPR.
Starting Page	123
Ending Page	126
File Size	201701
Page Count	4
File Format	PDF
ISBN	0780377737
DOI	10.1109/NCTT.2003.1188317
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-01-14
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless LAN Intersymbol interference Power amplifiers Peak to average power ratio Bandwidth Dynamic range Digital communication OFDM modulation Delay Communication standards
Content Type	Text
Resource Type	Article

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