Pulse or digital communications – Receivers – Particular pulse demodulator or detector
Patent
1996-08-01
1999-06-15
Bocure, Tesfaldet
Pulse or digital communications
Receivers
Particular pulse demodulator or detector
370526, H04L 2706
Patent
active
059129310
ABSTRACT:
A joint signal detection and channel parameter estimation scheme is provided for multiple subcarrier signaling with pilot symbol-assisted modulation schemes. Known symbols located in the subcarriers are used to estimate a pair of parameters associated with the generation process of the fading frequency selectivity common to all of the subcarriers. These known symbol estimates are used to derive parameter pair estimates for unknown symbols located in the subcarriers. This parameter estimation thus effectively extracts information regarding the fading frequency selectivity through the pilot symbols received not only by the subcarrier of interest but by other subcarriers as well. The fading complex envelope with each subcarrier is then derived from the estimates of the parameter pair.
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Kuroda Toshiaki
Matsumoto Tadashi
Bocure Tesfaldet
Glenn Michael A.
Nextel Communications
Nippon Telegraph and Telephone Corporation
NTT Mobile Communications Network Inc.
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