Abstract
In this paper, an iterative multiuser detection (IMUD) algorithm based on partial parallel soft interference cancellation (PPSIC) structure is proposed. In reference [8], Divsalar et al proposed a partial parallel interference cancellation multiuser detection algorithm, it was introduced a partial cancellation weight in each stage to alleviate the cost of improper interference estimations in parallel interference cancellation (PIC) structure. Based on this PPIC multiuser detection algorithm, we develop a soft input soft output (SISO) multiuser detection algorithm to fit the iterative multiuser detection process, and develop a new iterative structure of the multiuser detection algorithm in this paper. Due to that the veracity of the output bit information in fore-stage affects the correctness of detection in next stage in PPIC, we let the output bit information in each stage in PPIC process iteratively with the maximum a posteriori (MAP) channel decoder, so to improve the veracity of the output bit information in each stage in PPIC. The simulating results show that our proposed structure really does improve the performance of iterative multiuser detection based on PPIC. Also we can conclude that our iterative structure should be applied in other iterative multiuser detection algorithms based on PIC.
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References
Moher, M.: An iterative multiuser decoder for near-capacity communications. IEEE Trans. on Communications 46(7), 870–880 (1998)
Alexander, P.D., Grant, A.J., Reed, M.C.: Iterative detection in code-division multiple-access with error control coding. Eur. Trans. Telecommunications 9(5), 419–426 (1998)
Wang, X., Poor, H.V.: Iterative (Turbo) soft interference cancellation and decoding for coded CDMA. IEEE Trans. on Communications 47(7), 1046–1061 (1999)
Hsu, J.M., Wang, C.L.: A Low-complexity iterative multiuser receiver for turbo-coded DS-CDMA systems. IEEE Journal on Selected Areas in Communications 19(9), 1775–1783 (2001)
Morosi, S., Fantacci, R., Bernacchioni, A.: Improved iterative parallel interference cancellation receiver for future wireless DSCDMA systems. Eurasip Journal on Applied Signal Processing (5), 626–634 (2005)
Tan, S., Xu, L., Chen, S., Hanzo, L.: Iterative soft interference cancellation aided minimum bit error rate uplink receiver beamforming. In: 2006 IEEE 63rd Vehicular Technology Conference, pp. 17–21 (2006)
Pan, J.Y., Soh, C.B., Gunawan, E.: Iterative Soft Parallel Interference Cancellation for Convolutional-coded DS-CDMA System. Wireless Personal Communications 25(3), 177–186 (2003)
Divsalar, D., Simon, M.K., Raphaeli, D.: Improved parallel interference cancellation for CDMA. IEEE Trans. on Commun. 46(2), 258–268 (1998)
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© 2011 Springer-Verlag Berlin Heidelberg
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Zhu, C., Zhang, L., Ji, A., Wang, Y. (2011). Research on Iterative Multiuser Detection Algorithm Based on PPIC. In: Hu, W. (eds) Electronics and Signal Processing. Lecture Notes in Electrical Engineering, vol 97. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-21697-8_39
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DOI: https://doi.org/10.1007/978-3-642-21697-8_39
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-21696-1
Online ISBN: 978-3-642-21697-8
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