Title :
A comparison of decision feedback equalization and data directed estimation techniques for the GSM system
Author :
Bjerke, Bjørn A. ; Proakis, John G. ; Lee, Martin K. ; Zvonar, Z.
Author_Institution :
Dept. of Electr. & Comput. Eng., Northeastern Univ., Boston, MA, USA
Abstract :
We evaluate low complexity detectors for use in the GSM system. In particular, we compare the performance of decision feedback equalization (DFE) and nonlinear data directed estimation (NDDE) to that of the optimal maximum likelihood sequence estimation (MLSE). Establishing the performance of the basic NDDE detector is a first step in investigating the applicability of block transmission techniques to the GSM system. Our simulation results show that the NDDE performs just as well as the DFE, and the performance of both low complexity detectors is comparable to that of the MLSE for the SNR region of interest in practical systems
Keywords :
cellular radio; coding errors; computational complexity; decision feedback equalisers; error statistics; fading; land mobile radio; parameter estimation; signal detection; time division multiple access; BER performance; DFE; GSM system; SNR; TDMA; block transmission techniques; data directed estimation; decision feedback equalization; fast fading; low complexity detectors; maximum likelihood sequence estimation; nonlinear data directed estimation; optimal MLSE; performance; simulation results; Decision feedback equalizers; Detectors; GSM; Maximum likelihood detection; Maximum likelihood estimation;
Conference_Titel :
Universal Personal Communications Record, 1997. Conference Record., 1997 IEEE 6th International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-3777-8
DOI :
10.1109/ICUPC.1997.625486
