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A. Ahmad
A. Host-Madsen
J. Giglmayr
Kwang Mong Sim
L. Ludman
R. S. Ramakrishna
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Yougsun Kim, Seung-Geun Kim, Kiseon Kim
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Performance Degradation due to Phase Jitter in IEEE 802.16 Downlink Signals
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Yougsun Kim, Seung-Geun Kim, Kiseon Kim, "Performance Degradation due to Phase Jitter in IEEE 802.16 Downlink Signals,"
ITC-CSCC 2002
, pp. 1681-1684, 2002.
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 ITC2002±è¿µ¼±.pdf (2MB)
  
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Acknowledgment
Keywords
Abstract
A multilevel modulation with selectable constellations is adopted in the downlink subframe modulation of the IEEE 802.16 standard to increase the total throughput. One of the decision factors of the modulation is the location of SS(Subscriber Station). Also, for the 802.16, low phase noise of local oscillator is needed due to high operating frequency and severe loss in the propagation channel. We investigate the BER of downlink subframe with the phase jitter under the standard's specified LOS(line of sight) and multipath environment with randomly generated SS locations. Simulation results show BER performance degradation for the modulation corresponding to selected constellations and additionally required SNR to achieve 0.001 BER under various phase jitter.
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