An efficient equalizer for 8-PSK EDGE cellular radio systems

Olivier, J.C.; Xiao, Chengshan; Mann, K.D.

doi:10.1109/vetecs.2001.944978

Cited by 3 publications

(1 citation statement)

References 17 publications

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“…Numerous approaches for suppressing such ISI have been published (see, e.g., [15][16][17][18]). Although maximum likelihood sequence estimation (MLSE) equalization is widely considered to be the best technique for GMSK-based communication systems [19], it has a high computational complexity that increases with the length of the channel impulse response [20]. We are interested in using a linear equalizer (LE) due to its relatively low complexity and because it is amenable to simple modifications, such as the use of filtered training sequences proposed in this paper.…”

Section: Introductionmentioning

confidence: 99%

A GMSK Receiver with Beamformer Weight Refinement

Yeon

Shynk

Gooch³

2008

Wireless Pers Commun

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We present an adaptive antenna algorithm for Gaussian minimum-shift keying (GMSK)-based cellular systems with beamformer weights that are iteratively computed using re-encoded data to suppress cochannel interference (CCI). Filtered training sequences are proposed in order to compensate for the effects of timing offsets that occur for asynchronous cochannel signals. Also, we extend the receiver to include a linear equalizer that mitigates intersymbol interference (ISI). Various multistage receivers incorporating the proposed beamformer and equalizer algorithms are presented. Their performance is evaluated using simulated and real time-division multiple-access (TDMA) data, demonstrating that the proposed beamforming algorithms suppress CCI and significantly improve the performance compared to a conventional GMSK receiver.

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