Iterative data detection and channel estimation for advanced TDMA systems

Iterative data detection and channel estimation for advanced TDMA systems

This letter presents a new receiver for Q-ary transmission, where all receiver blocks are embedded in an iterative structure. Packet data transmission in Global Systems for Mobile communications (GSM) and Enhanced Data rates for Global Evolution (EDGE) are considered as examples. A low-complexity so...

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Veröffentlicht in:IEEE transactions on communications 2003-02, Vol.51 (2), p.141-144
Hauptverfasser: Nefedov, N., Pukkila, M., Visoz, R., Berthet, A.O.
Format: Artikel
Sprache:eng
Schlagworte:
Channel estimation
Channels
Data transmission
Delay estimation
Detectors
Evolution
GSM
Iterative decoding
Maximum likelihood decoding
Maximum likelihood estimation
Performance enhancement
Receivers
Research and development
Telecommunications
Time division multiple access
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Beschreibung
Zusammenfassung:This letter presents a new receiver for Q-ary transmission, where all receiver blocks are embedded in an iterative structure. Packet data transmission in Global Systems for Mobile communications (GSM) and Enhanced Data rates for Global Evolution (EDGE) are considered as examples. A low-complexity soft-in-soft-out detector for EDGE is introduced and its modification suitable for iterative detection is derived. Application of iterative detection and channel estimation techniques in GSM/EDGE shows a significant performance enhancement. Additional improvement may be obtained if the iterative processing is applied to packet retransmission schemes.
ISSN:0090-6778
1558-0857
DOI:10.1109/TCOMM.2003.809218