Title :
Subcarrier Ordering for OFDM Packet Radio Systems
Author :
Juang, Michael A. ; Pursley, Michael B.
Author_Institution :
Dept. of Electr. & Comput. Eng., Clemson Univ., Clemson, SC, USA
Abstract :
Subcarrier ordering is a ranking of the subchannels of a multicarrier communication system according to a quality criterion. We describe and evaluate two techniques for subcarrier ordering in half-duplex packet radio systems, including OFDM dynamic spectrum access systems. The ordering techniques require no estimates of subchannel gains or subcarrier signal strengths. The performance of each technique is evaluated for channels with fading and for channels with interference and fading.
Keywords :
OFDM modulation; fading channels; radio spectrum management; radiofrequency interference; OFDM dynamic spectrum access systems; OFDM packet radio systems; channels-with-fading; channels-with-interference; half-duplex packet radio systems; multicarrier communication system; quality criterion; subcarrier ordering; Interference; OFDM; Phase shift keying; Rayleigh channels; Signal to noise ratio; OFDM; fading; interference; packet radio;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2015.2439264
