Title :
Iterative data detection and channel estimation for advanced TDMA systems
Author :
Nefedov, Nikolai ; Pukkila, Markku ; Visoz, Raphael ; Berthet, Antoine O.
fDate :
2/1/2003 12:00:00 AM
Abstract :
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.
Keywords :
cellular radio; channel estimation; iterative methods; packet radio networks; radio receivers; signal detection; time division multiple access; EDGE; GSM; GSM/EDGE; Q-ary transmission; advanced TDMA systems; channel estimation; iterative data detection; iterative detection; iterative processing; low-complexity soft-in-soft-out detector; packet data transmission; receiver; Channel estimation; Delay estimation; Detectors; GSM; Iterative decoding; Maximum likelihood decoding; Maximum likelihood estimation; Research and development; Telecommunications; Time division multiple access;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2003.809218
