Title :
Bootstrap equalization
Author :
Tidestav, Claes ; Lindskog, Erik
Author_Institution :
Dept. of Signals & Syst., Uppsala Univ., Sweden
Abstract :
We introduce bootstrapping as a generic method for improving channel equalization in TDMA cellular systems where the channels remain approximately constant over a transmitted burst. Bootstrapping implies that the detection is repeated, using an equalizer tuned with detected symbols. The procedure can be iterated to achieve even better performance. The initial equalizer is assumed to be tuned using a short known training sequence. When applied to experimental data from a DCS-1800 antenna array testbed, bootstrap equalization yields a performance improvement of 14 dB for a space-time maximum likelihood sequence detector and 17 dB for a space-time decision feedback equalizer in an interference limited scenario
Keywords :
antenna arrays; cellular radio; decision feedback equalisers; maximum likelihood detection; maximum likelihood sequence estimation; time division multiple access; DCS-1800 antenna array testbed; MLSE; TDMA cellular systems; bootstrap equalization; channel equalization; detected symbols; experimental data; interference limited scenario; iterated procedure; repeated detection; short known training sequence; space-time decision feedback equalizer; space-time maximum likelihood sequence detector; Antenna arrays; Detectors; Equalizers; Filtering; Filters; Maximum likelihood detection; Maximum likelihood estimation; Polynomials; Sensor arrays; Testing;
Conference_Titel :
Universal Personal Communications, 1998. ICUPC '98. IEEE 1998 International Conference on
Conference_Location :
Florence
Print_ISBN :
0-7803-5106-1
DOI :
10.1109/ICUPC.1998.733691
